biology

Question 1

what is the word equation for photosynthesis

Answer 1

carbon dioxide + water = glucose + oxygen

(light)

Question 2

where does photosynthesis occur?

Answer 2

chlorophyll in the chloroplast

Question 3

how does the plant use the glucose produced by photosynthesis

Answer 3

starch and cellulose

Question 4

what are the 3 limiting factors of photsythesis?

Answer 4

light, temperature, carbon dioxide

Question 5

describe the function of the waxy layer in leaf

Answer 5

it prevents water loss

Question 6

describe the function of the spongy layer in the leaf

Answer 6

it allows carbon dioxide and oxygen reach the palaside layer

Question 7

describe the function of the xylem in the leaf

Answer 7

it helps move water

Question 8

describe the function of the stomata in the leaf

Answer 8

it regulates gas exchange and controls water loss

Question 9

describe the function of the guard cells in the leaf

Answer 9

it opens and closes the stomata

Question 10

describe the function of the under epidermis in the leaf

Answer 10

its a protective layer

Question 11

describe the function of the palisade cells in the leaf

Answer 11

it provides structure

Question 12

name the equipment needed for the required practical

Answer 12

pond weed, meter stick, lamp, test tube, sodium carbonate

Question 13

what was the aim of the required practical

Answer 13

measure the rate of photosynthesis

Question 14

in short, explain the method for the required practical

Answer 14

cut the end of the pond weed stem off, place in sodium carbonate, place lamp at 0 on meter and test tube at 10. count how many bubbles leave the stem in 1 minuet. do multiple times, each time moving test tube 10 more cm away from the lamp

Question 15

suggest a hazard for the required practical and suggest how to remove it

Answer 15

lamp may over heat, use a led lamp