B5 Plant Nutrition

Question 1

photosynthesis

Answer 1

the process by which plants manufacture carbohydrates from raw materials using energy from light

Question 2

balanced symbol equation for photosynthesis

Answer 2

6CO2 + 6H2O → C6H12O6 + 6O2

Question 3

hydrogen carbonate indicator

Answer 3

used to measure carbon dioxide concentration in water

Question 4

what are nitrate ions needed for?

Answer 4

amino acid synthesis

Question 5

what are magnesium ions needed for?

Answer 5

chlorophyll synthesis

Question 6

what happens during nitrate deficiency?

Answer 6

stunted growth & yellow leaves
-> lack of protein needed for cell division and or growth

Question 7

word equation for photosynthesis

Answer 7

carbon dioxide + water -> glucose + oxygen

Question 8

chlorophyll transfers _________
into chemical energy in molecules, for the
synthesis of __________

Answer 8

light energy, carbohydrates

Question 9

how do plant roots obtain sugar from the leaves?

Answer 9

sucrose flows through the phloem of the plant from the leaf.

Question 10

2 functions of a root hair cell

Answer 10

allow more water & mineral absorption

Question 11

Water is taken in through the roots and lost from the leaves of tall trees. What enables this to happen?

Answer 11

transpiration loss from the leaves

Question 12

What do plants need for their nutrition?

Answer 12

carbon dioxide, ions, light and water

Question 13

What process is limited when magnesium is deficient?

Answer 13

photosynthesis

Question 14

the source of energy for green plants are

Answer 14

sunlight

Question 15

carbohydrates made in photosynthesis are stored as

Answer 15

starch or oils

Question 16

what happens during magnesium deficiency?

Answer 16

yellowing between veins of leaves; lower leaves turn green and upper leaves turn yellow
-> loss of chlorophyll

Question 17

uses of carbohydrates made during photosynthesis

Answer 17

active transport, growth, reproduction, movement, etc