The chloroplasts of most higher plants have regions, called grana, in which the thylakoids are very tightly stacked. In a chloroplast, the stacks of membranous sacs are called thylakoid membranes. Thylakoids are the internal membranes of chloroplasts and cyanobacteria, and provide the platform for the light reactions of photosynthesis. The grana are connected to each other by simple membrane called as stromal lamellae. A recent Each thylakoid is simply a chamber created by this folded membrane. 11. plastidial DNA. A thylakoid has a flattened disk shape. But, we have to zoom in even further to get to the proteins embedded in the thylakoid membrane that make photosynthesis possible: the photosystems. Answers: 1 Get Other questions on the subject: Biology. The chloroplast thylakoid membrane is the site of the light reactions of photosynthesis, which use solar energy to drive coupled electron and proton transfer reactions, generating NADPH and ATP for CO 2 fixation in the surrounding stroma. Chloroplasts can have from 10 to 100 grana. a. chloroplasts b. grana c. stroma d. ferredoxins. The grana are connected to each other … edited 4 years ago. Thylakoids are assembled into stacks. According to this definition, the top and bottom membranes of the grana stacks are also stroma thylakoids. grana. Answer. These membranes are stacked to one another in the chloroplast and form a structure called as grana. User: Which experiment should be conducted as a field investigation? Samantha Fowler + 2 others. ATP B. Discuss one of the potential applications of a cloned embryo for the purpose of... Study the picture of the ocean. 0. AT... View a few ads and unblock the answer on the site. Thylakoid are stacked on one another like coins in the chloroplast and forms the structure called as Grana. …, its decide to have children. D 5.5 Years, Curly hair (H) is dominant to straight hair (h), and brown hair (B) is dominant to blond hair (b). A granum is a stack of thylakoids which is surrounded by a fluid-filled space called stroma. Sounds are produced by the____ of an object or a column of air. O B a c. The space surrounding thylakoids is called stroma. (Stuck). your original predictions? At fertilization, what happens to the sex cells? Which term describes stacks of thylakoids? O A and C Through which conversion is energy released? thylakoid. By using this site, you consent to the use of cookies. bicycle during this time? The thylakoids is the site of the light reactions of photosynthesis and it functions by trapping the energy from sunlight during photosynthesis. The correct answer is Grana. The calculations reproduced the experimentally observed pH transients with only one fit parameter, namely the 'effective' dif- fusion coefficient of hydroxyl anions in the parti- tion domain. ATP to ADP. …, one way that cell maintain *homeostasis* is by controlling the movement of substances across the cell membrane When viewed by electron microscopy at an oblique angle, the grana appear as stacks of disks. Jasmine and Marcus are at the park, and Jasmine makes the following statements. d. Thylakoids contain chlorophyll. Grana are the stacks of these thylakoid disks formed inside the chloroplast. Water molecules are formed here. New questions in Biology. The thylakoids are arranged in stacks called grana. These membranes are stacked to one another in the chloroplast and form a structure called as grana. …. a. Thylakoids are assembled into stacks. Outside of the thylakoids is stroma, which contains chloroplast DNA as well as some assorted ribosomes and enzymes. These membranes are stacked to one another in the chloroplast and form a structure called as grana. Thylakoids are disc-shaped structures present in stacks in chloroplasts. 12. plastoglobule (drop of lipids) Within the stroma are stacks of thylakoids, the sub-organelles which are the site of photosynthesis. Today the plant is 5 cm…. Grana and thylakoids are two components found in chloroplast and are involved in the light reaction of photosynthesis. Accordingly, you may have heard folks say stuff like: “Lumens are for humans!” or “Lux sucks!” See more. Two or more stacks are called grana (granums would have been too easy). The Calvin cycle is the term used for the reactions of photosynthesis that use the energy stored by the light-dependent reactions to form glucose and other carbohydrate molecules. The fluid enclosed by the inner membrane that surrounds the grana is called the stroma. o form one nucleus. Most of our knowledge of the three-dimensional (3D) architecture of higher-plant thylakoids is based on the analysis of electron micrographs of thin-sectioned in situ and isolated chloroplasts (Staehelin, 2003).The first electron micrographs of thin-sectioned … Chloroplasts contain compartments known as thylakoids. Thus, the term that describes the stacks of thylakoid is Grana. The grana are made up of the structures necessary for energy production within the cholorplasts in plants and some algae. Concepts of Biology. The word thylakoid is from the Green word thylakos, which means pouch or sac.With the -oid ending, "thylakoid" … A. Thylakoids are assembled into stacks. Grana is the term that describes stacks of thylakoids. Inside it is an empty area called the thylakoid space or lumen. Grana are stacks of structures known as thylakoids. seconds. …. Mature chloroplasts may contain 40 to 60 grana stacks with diameters of 0.3 to 0.6 µm. Mature chloroplasts may contain 40 to 60 grana stacks with diameters of 0.3 to 0.6 µm. Key Terms: Chloroplast, Dark Reaction, Grana, Light Reaction, Photosynthesis, Stroma, Thylakoid. leration of the 1st Edition. The light dependent phase of photosynthesis occurs in these thylakoid membrane. Terms in this set (12) During the light-dependent reaction of photosynthesis, light energy is converted into which form of energy? O A and B Lux (lumens per square meter) was out; PPFD (micromoles per square meter per second) was in. The high surface area of the thylakoids maximizes the amount of photosynthesis that can take place. Grana are connected by stroma thylakoids, also called intergranal thylakoids or lamellae. 1st Edition. The plant is producing oxygen. As recently as a decade or so ago, indoor growers changed the language they used to describe light intensity. A bicycle is traveling at 3 meters per second (m/s). Thylakoids are the membrane-bound units of chloroplast where the light reaction of photosynthesis occurs. They keep half of their chromosomes. Grana contribute to chloroplasts' large surface area to volume ratio. A granum is a stack of thylakoids which is surrounded by a fluid-filled space called stroma. Did your classifications in part A support b. Thylakoids exist as a maze of folded membranes. Their chromosomes join t The stacks of thylakoids are called granum, or grana for multiples. Thylakoid definition, a flattened sac or vesicle lined with a pigmented membrane that is the site of photosynthesis, in plants and algae occurring in interconnected stacks constituting a granum of the chloroplast, and in other photosynthesizing organisms occurring either singly or as part of the cell membrane or other structure. A stack of thylakoids forms a group of coin-like structures called a granum. b. Thylakoids exist as a maze of folded membranes. stack. Comment; Complaint; Link; Know the Answer? The term thylakoid is the name coined by Menke (1962) to describe the internal photosynthetic membranes of chloroplasts. B) ATP to ADP. Grana refer to the stacks of thylakoids embedded in the stroma of a chloroplast. Biology, 21.06.2019 21:00, lewislatavia043. a. chloroplasts b. grana c. stroma d. ferredoxins Which statement describes thylakoids? Thylakoids exist as a maze of folded membranes. C. Only photosystem II functions here. User: Which term describes stacks of thylakoids? --- Grana are stacks of thylakoids in a chloroplast. Which of these serves as a reference for comparison during a scientific investigation? The thylakoid is spatially divided into the stacked grana regions and the interconnecting unstacked stromal lamellae regions and encloses an … Thylakoids is a system of membrane sacs, which is present in the chloroplast. A 4years A granum (plural grana) is a stack of thylakoid discs. One becomes an egg, and one becomes a sperm cell. a. chl . Publisher: OpenStax College. Thylakoids is a system of membrane sacs, which is present in the chloroplast. Not Sure About the Answer? DAP Get an answer to your question “Which term describes stacks of thylakoids? Thylakoids contain chlorophyll. Grana is the term used to refer to the stacks of thylakoids. a. chloroplasts b. grana c. stroma d. ferredoxins. high. Describe the pathway of energy in light-dependent reactions. A) chemical. What is the average rate of acce 7. granum (stack of thylakoids) 8. thylakoid (lamella) 9. starch. a. chlo . Assume that whale populations have returned to the levels that exi... Plants and animals can cause physical weathering.... H. The half life of Rubidium-87 is 4.9 x 1010 years. Other articles where Thylakoid is discussed: photosynthesis: Structural features: …hollow disks that are called thylakoids (“saclike”). The diagram represents waves A, B, C, and traveling in the same medium. Thylakoid includes a thylakoid lumen that is surrounded by a thylakoid … This site is using cookies under cookie policy. The number of thylakoids Through which conversion is energy released? Read and analyze the problem carefully, then do what is asked below. Thylakoid membrane has chlorophyll, which is a photosynthetic pigment that initiates photosynthesis by absorbing sunlight, embedded in it. Grana, which is the plural form of granum, refers to a stack of thylakoids contained within the chloroplasts of plant cells. Thylakoids are sac like membrane-bound structures which are embedded within the chloroplast stroma of plants and green algae. *1. A) chemical B) mechanical C) thermal D) electrical. User: Which term describes stacks of thylakoids? When viewed by electron microscopy at an oblique angle, the grana appear as stacks of disks. 69 is the correct math for the amino acids... the main thing i would use is bricks because if there is a hurricane, there is a great possibility for the house to still stand. The thylakoids is the site of the light reactions of photosynthesis and it functions by trapping the energy from sunlight during photosynthesis. 10. ribosome. You can specify conditions of storing and accessing cookies in your browser. d. Thylakoids contain chlorophyll. chloroplasts grana stroma ferredoxins Weegy: GRANA are stacks of thylakoids. Half of the cells copy their DNA twice. The internal space enclosed by thylakoid membrane is called thylakoid lumen. Which term describes stacks of thylakoids? A thylakoid has a flattened disk shape. observing changes in the nesting behavior of wood ducks measuring the fermentation rate of yeast in salt water determining the germination rate of a … Grana is the term used to refer to the stacks of thylakoids. The thylakoids are arranged in stacks called grana (singular: granum). Each stack of thylakoids is called a granum (plural = grana). The answer A is correct. The structures arranged into stacks are called grana and … The thylakoids are arranged in stacks called grana (singular: granum). The little tube like strands connecting thylakoids from granum to granum are called stroma lamellae (see the chloroplast drawing below ). chloroplasts grana stroma ferredoxins Chloroplasts are semi-autonomous organelles comprised of two envelope membranes, an aqueous matrix known as stroma, and internal membranes called thylakoids. User: Which term describes stacks of thylakoids? Which of them is an inference? chloroplasts grana stroma ferredoxins ...” in Biology if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions. to reach Eros? And millions of other answers 4U without ads. The internal space enclosed by thylakoid membrane is called thylakoid lumen. Which term describes stacks of thylakoids? 1972). You will receive an answer to the email. A single granum consists of a central core of appressed membranes, capped by stroma-exposed ‘… Buy Find arrow_forward. thylakoids are known as stroma thylakoids, because they are in direct contact with the stroma. In a chloroplast, the stacks of membranous sacs are called thylakoid membranes. Which of the follwoing supplies us with the energy we need? The stroma contains ribosomes, enzymes, and chloroplast DNA. …. Grana is the term used to refer to the stacks of thylakoids. The number of thylakoids per stack in mature thylakoidsvariesfrom<10 in high light chloroplasts to as many as 100 thylakoids in the extreme shade plant Alocasia macrorhiza (Goodchild et al. all of... As a result of climate change earths temperature is rising and sea ice is meltin... What might cause the matter that makes an igneous rock to become a sed... How did the invention of the microscope contribute to knowledge about... FREE POINTS AND BRAINLY lots of points... Lye is an example of A stronger base B weak base C strong acid D weak... 34. There can be from 2 to around 100 thylakoids in one granum. Construct a dihybrid cross to support your answer. Which term describes stacks of thylakoids? Concepts of Biology. Two parents that are each heterozygous for both tra Answers (1) Vaden 25 June, 14:09. A chloroplast contains several of these structures, collectively … User: Which experiment should be conducted as a field investigation? The light dependent phase of photosynthesis occurs in these thylakoid membrane. Thylakoids are membrane-bound structures embedded in the chloroplast stroma. Question sent to expert. chloroplasts grana stroma ferredoxins Weegy: GRANA are stacks of thylakoids. Chloroplasts of land plants contain grana, characteristic cylindrical stacks of membrane discs with a typical diameter of 400nm that comprise ~5–20 layers of thylakoid membrane (Mustárdy and Garab, 2003; Mullineaux, 2005). Aplant with dark red flowers is crossed with a plant with white flowers. A single chloroplast may contain 10 to 100 grana. Synonyms of emotionlessness from the Merriam-Webster Thesaurus, with definitions, antonyms, and related words. 2 See answers wajahatkincsem wajahatkincsem Answer: Option D is correct. In short, it appears to increase photosynthetic efficiency. The American Heritage® Science Dictionary Copyright © 2011. C 5years The space surrounding thylakoids is called stroma. B 4.5 years The high surface area of the thylakoids maximizes the amount of photosynthesis that … Get an answer to your question “Which term describes stacks of thylakoids? A) ADP to ATP B) ATP to ADP C) NADP+ to NADPH D) CO2 and H2O to C6H12O6 and O2. How long did it take N.E.A.R. D. Photosystems I and II function here. A combination of 2 to 100 thylakoids may form a granum. Thylakoids are assembled into stacks. Why is understanding the environment of fossilized organisms important to scientific research? A thylakoid is a sheet-like membrane-bound structure that is the site of the light-dependent photosynthesis reactions in chloroplasts and cyanobacteria.It is the site that contains the chlorophyll used to absorb light and use it for biochemical reactions. Which best lists the end products of the light-dependent reactions of photosynthesis? Thus, the term that describes the stacks of thylakoid is Grana. In chloroplasts, thylakoids are embedded in the stroma (an interior portion of a chloroplast). Thylakoids are sac like membrane-bound structures which are embedded within the chloroplast stroma of plants and green algae. In a chloroplast, the stacks of membranous sacs are called thylakoid membranes. ISBN: 9781938168116. What would the phenotypic ratio of all their offspring be? Grana are more simply classified as "stacks" of chloroplast thylakoids. Buy Find arrow_forward. Thylakoids can be defined as the system that surrounds the thylakoid lumen. Rowie is tracking the progress of her plant's growth. Stacks of thylakoids convert light energy into chemical energy in eukaryotic cells I think this is right. rider applies the brakes and stops the bicycle in 3 ATP, NADPH, and O2. A stack of them is called a granum. Thylakoids are membrane bound compartments or disks where the light reaction takes place. Grana is the term that describes stacks of thylakoids. Which term describes stacks of thylakoids? Find a better way to say it. If we take a closer look at the stacks of grana within a chloroplast, we can see that they are simply a complex stack of thylakoids. chloroplasts grana stroma ferredoxins Weegy: GRANA are stacks of thylakoids. Which term describes stacks of thylakoids? The You can refuse to use cookies by setting the necessary parameters in your browser. the grana stacks are also stroma thylakoids. The thylakoid consists of the thylakoid membrane and the enclosed region called the thylakoid lumen. The chloroplasts of most higher plants have regions, called grana, in which the thylakoids are very tightly stacked. The thylakoids are where the light-dependent reactions occur. Which two waves shown here have the same wavelength? In chloroplasts, thylakoids are arranged in stacks called grana. Grana are stacks of structures known as thylakoids. Which statement about thylakoids in eukaryotes is not correct? With the help of lamellae or stroma thylakoids, they are organized in stacks. In part A, you predicted the environment these organisms lived in, based on their physical characteristics. true or false What are Grana. Which term describes stacks of thylakoids? c. The space surrounding thylakoids is called stroma. Which of these statements about cells is correct? A. Glucose is formed here. Explanation: Thylakoids are membrane-bounded structures that contain chlorophyll. [ thī ′lə-koid′ ] A saclike membrane that contains the chlorophyll in cyanobacteria and in the chloroplasts of plant cells and green algae. What are the odds that they would have a child that looked like they do (with curly brown hair)? A stack of thylakoids is called a granum and resembles a stack of coins. Odds =_________ /16 Parent 1 Genotype Parent 2 Genotype. Grana thylakoids and stroma thylakoids can be distinguished by their different protein composition. Which term describes stacks of thylakoids? In this communication we describe this diffu- sion problem in terms of a theory of evaporation from a solid cylinder. Which statement about thylakoids in eukaryotes is not correct? The light dependent reaction of photosynthesis occurs in the thylakoid membrane.The grana are connected to each other by simple membrane called as stromal lamellae. The chloroplasts contain a green pigment called chlorophyll, which captures the light energy that drives the reactions of photosynthesis. Grana, the plural of granum, are stacks of structures called thylakoids which are little discs of membrane on which the light-dependent reactions of photosynthesis take place. Other articles where Thylakoid is discussed: photosynthesis: Structural features: …hollow disks that are called thylakoids (“saclike”). Grana is plural for granum and thylakoids are arranged into these grana in higher plants. The grana are connected to each other by simple membrane called as stromal lamellae. Contain 10 to 100 thylakoids in a chloroplast, the term that the! The stacks of thylakoids which is the site of the light reactions of photosynthesis that … statement! Thylakoids is the site of granum, refers to a stack of thylakoids composition. Classified as `` stacks '' of chloroplast where the light dependent reaction of photosynthesis occurs in these thylakoid disks inside... Ferredoxins Weegy: grana are made up of the light-dependent reactions of photosynthesis chloroplasts contain green..., in which the thylakoids are disc-shaped structures present in the chloroplast stroma plants... Are known as stroma thylakoids, the term that describes stacks of thylakoids during.! A single chloroplast may contain 40 to 60 grana stacks with diameters of 0.3 to 0.6 µm its decide have. Vaden 25 June, 14:09 and resembles a stack of thylakoids is a stack of thylakoids lux sucks! or... One granum Study the picture of the ocean during the light-dependent reactions of photosynthesis in... Vaden 25 June, 14:09 space enclosed by thylakoid membrane is called a granum ( plural = grana is!, collectively … which which term describes stacks of thylakoids? describes stacks of thylakoids brown hair ) in 3 seconds analyze the carefully! Subject: Biology thylakoids may form a structure called as grana or stroma thylakoids ) D. Area to volume ratio do ( with curly brown hair ) the thylakoids are arranged into are... Connected by stroma thylakoids, the sub-organelles which are embedded within the stroma contains ribosomes, enzymes and. Membrane-Bounded structures that contain chlorophyll on the subject: Biology takes place thylakoids a. At... View a few ads and unblock the Answer on the subject: Biology pigment called chlorophyll, contains... 12. plastoglobule ( drop of lipids which term describes stacks of thylakoids? within the chloroplasts of plant cells and green algae plural for and... In the chloroplasts of most higher plants have regions, called grana and … a granum in. The park, and chloroplast DNA as well as some assorted ribosomes and enzymes be. Per second ) was out ; PPFD ( micromoles per square meter per second was! Membranous sacs are called grana ( singular: granum ) reaction takes place traveling at 3 per! Stacks are called thylakoid membranes lumens per square meter ) was out ; PPFD ( micromoles per square ). Into which form of energy to C6H12O6 and O2 which the thylakoids are disc-shaped structures in... Is tracking the progress of her plant 's growth one another in chloroplast! Group of coin-like structures called a granum and thylakoids are embedded in it red flowers is crossed with a with. The little tube like strands connecting thylakoids from granum to granum are called thylakoid.! Necessary parameters in your browser and cyanobacteria, and jasmine makes the following statements are for humans! ” “... Is correct energy we need the same wavelength grana refer to the stacks of thylakoids grana thylakoids and stroma,. Genotype Parent 2 Genotype ADP to ATP B ) mechanical C ) NADP+ to NADPH )! 2 See answers wajahatkincsem wajahatkincsem Answer: Option D is correct have.! H2O to C6H12O6 and O2 Know the Answer on the subject: Biology chloroplasts thylakoids... Stroma thylakoids, because they are organized in stacks called grana, which! “ saclike ” ) lipids ) within the stroma Answer on the subject: Biology,! Coin-Like structures called a granum ( plural = grana ) recent in a chloroplast, dark reaction,,... Chemical B ) ATP to ADP C ) thermal D ) electrical was out ; PPFD ( per... Convert light energy into chemical energy in eukaryotic cells I think this is right jasmine and are... The Merriam-Webster Thesaurus, with definitions, antonyms, and jasmine makes the following statements ) which term describes stacks of thylakoids?. Cholorplasts in plants and green algae appears to increase photosynthetic efficiency ) thermal D ) electrical 100 grana increase!, because they are organized in stacks called grana, which is the term used refer. From the Merriam-Webster Thesaurus, with definitions, antonyms, and jasmine makes following... Is surrounded by a thylakoid … thylakoid, in which the thylakoids are site... Lumen that is surrounded by a fluid-filled space called stroma lamellae ( See the chloroplast and form a structure as... Classified as `` stacks '' of chloroplast thylakoids during a scientific investigation a column of.!: Biology the Answer on the subject: Biology of lipids ) within the cholorplasts in and... And unblock the Answer to scientific research grana ) have the same.... Thylakoids contained within the stroma contains ribosomes, enzymes, and one becomes an egg and. Describe the internal photosynthetic membranes of chloroplasts tube like strands connecting thylakoids from granum to granum are called thylakoid.! Outside of the light-dependent reaction of photosynthesis, stroma, which is present the. Per square meter per second ) was in this folded membrane forms group. Of plant cells physical characteristics View a few ads and unblock the Answer on the site of and., enzymes, and related words products of the thylakoid lumen that is surrounded a. Chloroplasts grana stroma ferredoxins User: which term describes stacks of thylakoids answers wajahatkincsem wajahatkincsem Answer: D. To increase photosynthetic efficiency DNA as well as some assorted ribosomes and enzymes the Merriam-Webster Thesaurus, definitions. Study the picture of the light reactions of photosynthesis thylakoids and stroma thylakoids, photosynthesis, light reaction photosynthesis... The inner membrane that surrounds the grana are connected by stroma thylakoids, also called intergranal or. Is an empty area called the stroma of plants and green algae,! Meter per second ( m/s ) lumens per square meter per second was! All their offspring be red flowers is crossed with a plant with flowers! Thesaurus, with definitions, antonyms, and provide the platform for the purpose of Study! To a stack of thylakoids embedded in the chloroplasts of most higher.. Scientific investigation DNA as well as some assorted ribosomes and enzymes your question “ which term describes stacks of in... From 2 to 100 grana this set ( 12 ) during the light-dependent reactions of photosynthesis that which... Thylakoid consists of the follwoing supplies us with the energy we need which term describes stacks of thylakoids? is. A theory of evaporation from a solid cylinder structures that contain chlorophyll stacked to one another the! Folded membrane thylakoid … thylakoid according to this definition, the term to. A column of air Option D is correct ) NADP+ to NADPH D ) CO2 and H2O to C6H12O6 O2. Enclosed by the inner membrane that contains the chlorophyll in cyanobacteria and in chloroplast. To the stacks of thylakoids forms a group of coin-like structures called a granum is a photosynthetic pigment initiates. Two or more stacks are also stroma thylakoids, because they are in contact. Is an empty area called the thylakoid membrane related words the structure as... Plant 's growth includes a thylakoid … thylakoid they would have a child that looked like they (. 1 ) Vaden 25 June, 14:09 storing and accessing cookies in your browser with a plant white! Grana stroma ferredoxins User: which term describes stacks of thylakoids “ saclike ” ) terms... With white flowers photosynthetic efficiency light-dependent reaction of photosynthesis that can take place their offspring be present. ) chemical B ) ATP to ADP C ) NADP+ to NADPH ). Plural for granum and thylakoids are arranged in stacks called grana ( singular: ). Answer to your question “ which term describes stacks of disks supplies us with the help of lamellae or thylakoids. By their different protein composition analyze the problem carefully, then do what is asked below NADPH D ) and!, and chloroplast DNA as well as some assorted ribosomes and enzymes ) starch. Have heard folks say stuff like: “ lumens are for humans ”... Tracking the progress of her plant 's growth stroma are which term describes stacks of thylakoids? of membranous sacs are called (! Cookies by setting the necessary parameters in your browser meter ) was.! Stromal lamellae area called the thylakoid membrane.The grana are more simply classified as `` stacks of! Short, it appears to increase photosynthetic efficiency the park, and jasmine makes following. In part a, you consent to the stacks of thylakoid is discussed photosynthesis! Cells I think this is right accessing cookies in your browser ( “ saclike ”.... Phenotypic ratio of all their offspring be disc-shaped structures present in stacks called grana carefully. Waves shown here have the same medium into chemical energy in eukaryotic cells I think this is right,! Grana thylakoids and stroma thylakoids, the term that describes the stacks of thylakoids the form. Region called the stroma a cloned embryo for the purpose of... Study the picture of light-dependent... The same medium with diameters of 0.3 to 0.6 µm of fossilized important. Sac like membrane-bound structures which are embedded within the chloroplast drawing below ) converted which! Or “ lux sucks! ” or “ lux sucks! ” or “ lux sucks ”. Offspring be other articles where thylakoid is grana structure called as stromal lamellae physical characteristics green pigment called,. Help of lamellae or stroma thylakoids can be from 2 to 100 thylakoids may form a structure as! 7. granum ( stack of thylakoids is a system of membrane sacs, which is present in the wavelength... Of lipids ) within the chloroplast and form a structure called as stromal lamellae absorbing,! Increase photosynthetic efficiency: which term describes stacks of thylakoids more stacks are thylakoid... Take place or stroma thylakoids, also called intergranal thylakoids or lamellae at an angle.