6.plant nutrition

Question 1

photosynthesis

Answer 1

the process by which plants synthesise carbs from raw materials using energy from light

Question 2

photosynthesis word equation

Answer 2

carbon dioxide + water —-> glucose + oxygen (sunlight and chlorophyll abv arrow)

Question 3

photosynthesis balanced chemical equation

Answer 3

6CO2 + 6H20 —> C6H12O6 + 602

Question 4

vascular bundles

Answer 4

collections of xylem tubes and phloem vessels running side by side which form the veins in a leaf

Question 5

epidermis

Answer 5

the outer layer of tissue on a plant

Question 6

cuticle

Answer 6

a thin layer of wax that covers the upper epidermis where more photosynthesis happens

Question 7

spongy mesophyll

Answer 7

the layer of cells immediately beneath the palisade mesophyll, where some photosynthesis happens

Question 8

stomata

Answer 8

openings in the surface of a leaf that allow diffusion of carbon dioxide and oxygen in and out of a leaf

Question 9

guard cells

Answer 9

a pair of cells that surrounds a stoma and controls its openings

Question 10

destarching

Answer 10

leaving a plant in the dark for a long enough for it to use up its starch stores

Question 11

limiting factor

Answer 11

a factor that is in short supply which stops an activity happening at a faster rate

Question 12

limiting factor

Answer 12

a factor that is in short supply which stops an activity from happening at a faster rate

Question 13

Limiting factors of photosynthesis

Answer 13

light intensity, carbon dioxide concentration, temperature