1.In what plant organelle does photosynthesis occur? A. nucleus B. mitochondria
ID: 58968 • Letter: 1
Question
1.In what plant organelle does photosynthesis occur?
A. nucleus
B. mitochondria
C. chloroplast
D. endoplasmic reticulum
E. None of the above
2.Photosynthesis has two stages, during what stage is ATP and Oxygen produced?
A. Calvin cycle
B. chloroplast
C. Glycolysis
D. light dependent reactions
E. photosystem I
3.Photosynthesis has two stages, during what stage is glucose produced?
A. Calvin cycle
B. chloroplast
C. Glycolysis
D. light dependent reactions
E. photosystem I
4.What are the reactants and products of photosynthesis?
Reactants: Products
A. water and carbon dioxide: oxygen, glucose, and water
B. oxygen, glucose and water: water and carbon dioxide
C. starch and water: maltose
D. water and amino acids: protein
5.What pigment in plants absorbs red and violet wavelengths of light?
A. chlorophyll
B. xanthophyll
C. chloroplast
D. mitochondria
E. carotenoid
Explanation / Answer
Based on the given data,
1)
Chloroplasts are membrane bound organelles that contain pigments, such as chlorophyll, that absorb sun light energy and convert it into organic molecules. This process is called photosynthesis. Thus, the correct option is (C).
2)
Light dependent reactions of photosynthesis produce NADPH, oxygen H+ ions, and ATP. Thus, the correct option is (D).
3)
Calvin cycle takes place in the mitochondria in the presence of oxygen. It is also called light-independent reaction, which produce glucose from carbon dioxide and water.
Thus, the correct option is (A).
4)
The overall reaction of photosynthesis is as follows:
Thus, the correct option is (A).
5)
The carotenes, lycopenes and xanthophylls are grouped under carotenoids. The carotenes are further classified into alpha-carotenes, beta-carotenes and gamma-carotenes. Exposure of carotenoids to excess heat alters their chemical structure. As a result, the colour becomes light. The pigment in plants absorbs red and violet wavelengths of light are called carotenoids. Thus, the correct option is (D).
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