Plant Nutrition and Photosynthesis

1

Which of the following is not required for photosynthesis?

A Nitrogen B Water C Carbon dioxide D Light

2

The process of splitting water molecules during photosynthesis is known as:

A Photolysis B Hydrolysis C Photophosphorylation D Oxidation

3

Which of the following is a raw material for photosynthesis?

A Water B Oxygen C Glucose D Starch

4

Which of the following affects photosynthesis?

A All of these B Availability of water C Light intensity D Carbon dioxide concentration

5

The mineral required for the formation of chlorophyll is:

A Magnesium B Iron C Calcium D Potassium

6

The food made by plants is used for:

A All of these B Growth C Energy D Storage

7

What is the process by which plants make their own food?

A Photosynthesis B Respiration C Transpiration D Fermentation

8

Plants that live in dry environments have a special photosynthesis pathway called:

A CAM pathway B C3 pathway C C4 pathway D Kreb's cycle

9

What is the chemical formula for glucose?

A C6H12O6 B C6H10O5 C C5H10O5 D C6H12O5

10

What is the function of xylem in plants?

A Transport water and minerals B Transport food C Exchange gases D Store nutrients

11

In which part of the plant does photosynthesis primarily occur?

A Leaves B Roots C Stem D Flowers

12

Which type of plants can carry out photosynthesis in the absence of sunlight?

A None of these B Cactus C Algae D Fungi

13

The process of photosynthesis can be summarized by the equation:

A 6CO2 + 6H2O -> C6H12O6 + 6O2 B C6H12O6 + 6O2 -> 6CO2 + 6H2O C 6CO2 + 6H2O -> C6H12O6 + 6O2 + Energy D C6H12O6 + 6O2 + Energy -> 6CO2 + 6H2O

14

The initial product of photosynthesis in C3 plants is:

A 3-phosphoglycerate B Oxaloacetic acid C Malic acid D Glucose

15

What are the products of photosynthesis?

A Glucose and oxygen B Water and carbon dioxide C Glucose and water D Oxygen and carbon dioxide

16

What is the function of stomata in plant leaves?

A Exchange of gases B Absorb water C Transport food D Store nutrients

17

Plants take in water from the soil through their:

A Roots B Leaves C Stems D Flowers

18

Which of the following is required for photosynthesis?

A All of these B Water C Carbon dioxide D Sunlight

19

The green color of leaves is due to the presence of:

A Chlorophyll B Carotene C Xanthophyll D Anthocyanin

20

Which pigment in plants absorbs sunlight for photosynthesis?

A Chlorophyll B Carotene C Xanthophyll D Anthocyanin

21

Which of the following is a limiting factor for photosynthesis?

A All of these B Light intensity C Temperature D Carbon dioxide concentration

22

The loss of water from plant leaves in the form of vapor is called:

A Transpiration B Respiration C Excretion D Osmosis

23

The tiny pores on the underside of leaves are called:

A Stomata B Lenticels C Cuticle D Trichomes

24

A plant that does not have chlorophyll cannot carry out photosynthesis and is called:

A Parasitic plant B Saprophytic plant C Autotrophic plant D Heterotrophic plant

25

The site of light-dependent reactions in chloroplasts is the:

A Thylakoid membrane B Stroma C Inner membrane D Outer membrane