General Botany Quiz - Metabolism, Growth, and Development

Which of the following is not required for photosynthesis?

• a) Carbon dioxide
  

• b) Water
  

• c) Oxygen
  

• d) Light energy

The main photosynthetic pigment in plants is:

• a) Chlorophyll a
  

• b) Chlorophyll b
  

• c) Carotenoids
  

• d) Xanthophyll

In the light reactions of photosynthesis, water provides:

• a) Carbon atoms
  

• b) ATP
  

• c) Electrons

• d) Oxygen for the Calvin cycle

Which photosystem is first in the non-cyclic electron flow?

• a) Photosystem I
  

• b) Photosystem II
  

• c) Calvin cycle
  

• d) ATP synthase

The Calvin cycle occurs in the:

• a) Thylakoid membrane
  

• b) Grana
  

• c) Stroma
  

• d) Chlorophyll a molecule
  

In plants, growth is localized in:

• a) All cells equally
  

• b) Only at meristems
  

• c) Leaf cells
  

• d) Stomata

Which meristem is responsible for increasing thickness of stems and roots?

• a) Apical meristem
  

• b) Lateral meristem
  

• c) Intercalary meristem
  

• d) Cambial ring

Auxins are mainly responsible for:

• a) Breaking seed dormancy
  

• b) Fruit ripening
  

• c) Phototropism and cell elongation
  

• d) Senescence in leaves

Gibberellins can:

• a) Promote rapid stem elongation
  

• b) Inhibit lateral buds
  

• c) Delay fruit ripening
  

• d) Reduce flowering in long-day plants

Which hormone delays leaf senescence?

• a) Auxin
  

• b) Cytokinin
  

• c) Ethylene
  

• d) Abscisic acid