Plant Nutrition and Photosynthesis

1

Plants take in water from the soil through their:

A Roots B Leaves C Stems D Flowers

2

What is the main source of energy for photosynthesis?

A Sunlight B Soil C Water D Air

3

Which part of a plant cell contains chlorophyll?

A Chloroplast B Mitochondria C Nucleus D Vacuole

4

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

5

The process of photosynthesis takes place in the:

A Chloroplasts B Mitochondria C Nucleus D Ribosomes

6

The food produced by plants is stored as:

A Starch B Glycogen C Cellulose D Sucrose

7

The food made by plants is used for:

A All of these B Growth C Energy D Storage

8

Which gas do plants absorb from the atmosphere during photosynthesis?

A Carbon dioxide B Oxygen C Nitrogen D Hydrogen

9

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

10

The tiny pores on the underside of leaves are called:

A Stomata B Lenticels C Cuticle D Trichomes

11

The flat, broad part of a leaf is called the:

A Lamina B Petiole C Midrib D Vein

12

Which of the following is required for photosynthesis?

A All of these B Water C Carbon dioxide D Sunlight

13

Which of the following is a raw material for photosynthesis?

A Water B Oxygen C Glucose D Starch

14

The oxygen released during photosynthesis comes from:

A Water B Carbon dioxide C Glucose D Chlorophyll

15

What is the role of NADPH in photosynthesis?

A Reducing power B Energy carrier C Pigment D Enzyme

16

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

A Thylakoid membrane B Stroma C Inner membrane D Outer membrane

17

What is the function of stomata in plant leaves?

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

18

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

A Transpiration B Respiration C Excretion D Osmosis

19

The Calvin cycle occurs in the:

A Stroma B Thylakoid C Granum D Chloroplast envelope

20

Glucose produced during photosynthesis is transported through:

A Phloem B Xylem C Epidermis D Cortex

21

What is the function of xylem in plants?

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

22

What is the chemical formula for glucose?

A C6H12O6 B C6H10O5 C C5H10O5 D C6H12O5

23

Which gas is released by plants during respiration?

A Carbon dioxide B Oxygen C Nitrogen D Methane

24

Which of these is a by-product of photosynthesis?

A Oxygen B Carbon dioxide C Water D Nitrogen

25

Which of the following affects photosynthesis?

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