Photosynthesis Key Words

Question 1

Limiting factors

Answer 1

These stop photosynthesis from stopping any faster.

Question 2

Photosynthesis

Answer 2

Process where plants and algae produce food for themselves.

Question 3

Chloroplasts

Answer 3

Where photosynthesis takes place.

Question 4

Oxygen

Answer 4

A waste product made by plants in photosynthesis.

Question 5

Carbon Dioxide

Answer 5

Absorbed by plants for photosynthesis to take place.

Question 6

Water

Answer 6

Needed for photosynthesis to take place.

Question 7

Glucose

Answer 7

The food plants produce in photosynthesis.

Question 8

Chlorophyll

Answer 8

Inside the chloroplasts what gives the plant it’s green colour.

Question 9

Mesophyll tissue

Answer 9

Where the majority of photosynthesis in a plant takes place.

Question 10

Xylem and Phloem

Answer 10

Transport water, mineral ions and sucrose around the plant.

Question 11

Epidermal tissue

Answer 11

Covers the whole plant.

Question 12

Limiting factor - carbon dioxide

Answer 12

Not enough carbon dioxide slows it down - it increases steadily until it’s optimum then levels off. Light or temperature become the limiting factor.

Question 13

Limiting factor - light

Answer 13

Not enough light slows it down - it increases steadily until it’s optimum then levels off. Temperature or carbon dioxide become the limiting factor.

Question 14

Limiting factor - temperature

Answer 14

Not enough heat slows it down - it increases until it’s optimum but if it get’s too hot, the enzymes become damaged and are destroyed at 45degrees. Light or carbon dioxide then become the limiting factor.

Question 15

Greenhouse

Answer 15

Artificially making the ideal conditions for plants to grow at the fastest possible rate.

Question 16

Uses of glucose - respiration

Answer 16

Glucose is used in respiration releasing energy enabling them to convert the rest of the glucose into other useful substances.

Question 17

Uses of glucose - cell walls

Answer 17

Glucose is converted into cellulose for making strong cells walls, particularly in a fast growing plant.

Question 18

Uses of glucose - proteins

Answer 18

Glucose is combined with nitrate ions from the soil to make amino acids which are made into proteins.

Question 19

Uses of glucose - starch

Answer 19

Glucose is converted into starch and stored in roots, stems and leaves for when photosynthesis isn’t happening, e.g. winter. It’s perfect because starch is insoluble.