Advertisements
Advertisements
प्रश्न
The individual flattened stacks of membranous structures inside the chloroplasts are known as ______.
विकल्प
grana
stroma
thylakoids
cristae
Advertisements
उत्तर
The individual flattened stacks of membranous structures inside the chloroplasts are known as thylakoids.
Explanation:
Thylakoids are the individual, flattened, disc-like membranous sacs inside a chloroplast that contain chlorophyll molecules to trap light energy. When these individual thylakoid discs stack on top of one another like a pile of coins, the entire column or stack is collectively referred to as a granum (plural: grana). In contrast, stroma is the fluid matrix surrounding these stacks, and cristae are internal folds found inside mitochondria.
APPEARS IN
संबंधित प्रश्न
Give biological reasons for the following statements : In some xerophytes leaves are modified into spines
Given below is an experimental setup to demonstrate a particular tropic movement in germinating seeds. Study the diagram and answer the questions that follow:
- Label the parts 1 and 2.
- Name the tropic movement shown by part 1.
- Part 1 is affected by two stimuli. Name them. Which one of the two is stronger?
- What is thigmotropism? Give one example.
- What is meant by 'Positive' and 'Negative' tropic movements in plants?
Given below is an experiment setup to demonstrate a particualr tropic movement in germinating seeds. Study the diagram and answer the questions that follow : 
What is Thigmotropism? Give one example.
The following statement is about photosynthesis in a green plant. Write whether it is True or False.
Photosynthesis occurs in all the cells of the plant.
Name the following:
The first form of food substance produced during photosynthesis.
Complete the following food chains by writing the names of appropriate organisms in the blanks:
______ → Mouse ______ → Peacock
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
The raw materials for photosynthesis include water and CO2.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
A variegated leaf (one that has green as well as white patches) will only photosynthesize in the green areas.
Photosynthesis converts energy X into energy Y.
- What are X and Y?
- Green plants are autotrophic in their mode of nutrition. Why?
Arrange and rewrite the terms in the group in the correct order to be in a logical sequence beginning with the term that is underlined:
Snake, Rabbit, Cabbage, Hawk.
