Topic 3, Unit 6 - Plant Nutrition

Question 1

Nutrients definition

Answer 1

substance needed for growth, repair, and metabolism

Question 2

Heterotrophs

Answer 2

Don’t feed on organic substances

Question 3

Example of heterotrophs

Answer 3

animal
fungi

Question 4

autotrophs

Answer 4

Feed on organic substances

Question 5

Example of autotrophs

Answer 5

green plants

Question 6

What is the source of energy for the reaction of photosynthesis

Answer 6

Solar Energy/Sun

Question 7

What is the pigment necessary for photosynthesis

Answer 7

chlorophyll

Question 8

what mineral is needed by a plant to form chlorophyll

Answer 8

magnesium

Question 9

Formula for photosynthesis

Answer 9

carbon dioxide + water -> glucose + oxygen

6C02 + 6H20 -> C6H12O6 + 6O2

Question 10

Aerobic respiration formula

Answer 10

C6H12O6 + 602 -> 6CO2 + 6H20 + energy

Question 11

function of waxy layer

Answer 11

prevent cells from drying out and reduces water loss

Question 12

function of upper epidermis

Answer 12

preventing the entry of disease- causing organisms
protects cells inside leaf

Question 13

function of palisade layer

Answer 13

photosynthesis

Question 14

function of spongy layer

Answer 14

gas exchange

Question 15

function of stoma

Answer 15

allow carbon dioxide exchange

Question 16

vascular bundle

Answer 16

phloem and xylem

Question 17

function of phloem

Answer 17

transport nutrients

Question 18

function of xylem

Answer 18

transport minerals and water

Question 19

Uses of glucose

Answer 19

1) Making nectar to attract pollinator
2) Making Amino Acids
3) Making chlorophyll

Question 20

What are the factors affecting photosynthesis

Answer 20

• Supply of raw materials
• Quantity of sunlight
• Amount of Chlorophyll
• Temperature