Q30 of 56 Page 21

Observe the following diagram and write a note on light dependent, light independent reactions. (AS5)

a) Light dependent reaction: Chlorophyll, a pigment in the thylakoids absorbs light. The absorption of light splits water into oxygen and protons. The oxygen is released in the atmosphere while the protons are pumped through number of proteins to produce ATP and NADPH.


b) Light independent reaction: ATP and NADPH produced in light dependent reaction is used in the dark reaction through Calvin cycle to produce carbohydrates. The enzymes for the dark reaction of photosynthesis are present in the stroma of chloroplast.


More from this chapter

All 56 →
28

Draw the label diagram of human digestive system? List out the parts where peristalsis takes place. (AS5)

 29

Raheem prepared a model showing the passage of the food through different parts of the alimentary canal? Observe this and label it’s parts. (AS5)

 31

Almost all the living world depends on plants for food material. How do you appreciate the process of making food by the green plants? (AS6)

 32

Even a hard-solid food also becomes smooth slurry in the digestive system by the enzymes released at a particular time. This mechanism is an amazing fact. Prepare a cartoon on it. (AS6)