biochemistry

Question 1

what parts are in a plant cell?

Answer 1

cell membrane
cell wall
cytoplasm
nucleus
chloroplast
vacuole

Question 2

what does chlorophyll do?

Answer 2

transfer the sun into food

Question 3

why are the four requirements for photosynthesis

Answer 3

sunlight
carbon dioxide
chlorophyll
water

Question 4

what are the products of photosynthesis?

Answer 4

glucose and oxygen

Question 5

what controls the pores opening or closing on a leaf?

Answer 5

guard cells

Question 6

where does the carbon dioxide move to in the leaf to be used for photosynthesis?

Answer 6

palisade mesophyll

Question 7

what is the hollow tube that water enters the leaf by called?

Answer 7

xylem tube

Question 8

what do the epidermis and waxy cuticle do?

Answer 8

stop bacteria entering and water from escaping

Question 9

what do palisade mesophyll cells have a special feature of?

Answer 9

lots of chlorophyll

Question 10

where are palisade mesophyll cells found?

Answer 10

near the top

Question 11

what is a vascular bundle?

Answer 11

a vascular bundle is a large airspace

Question 12

why is a leaf thin?

Answer 12

it helps allow gasses diffuse easily

Question 13

why have leaves adapted to change direction?

Answer 13

to absorb more sunlight

Question 14

what does the xylem and phloem do?

Answer 14

transport water to the leaf and take sugars away

Question 15

why does leaves have many stomata?

Answer 15

allows for gas exchange

Question 16

what process happens in the roots?

Answer 16

respiration

Question 17

what does nitrogen cause if there isn’t enough of it?

Answer 17

poor growth

Question 18

what does magnesium cause if there isn’t enough of it?

Answer 18

poor growth and yellowish leaves

Question 19

what does phosphorus cause if there isn’t enough of it?

Answer 19

weak shoots and roots

Question 20

what does nitrogen do for plants?

Answer 20

makes proteins that are used for growth

Question 21

what does magnesium do in a plant?

Answer 21

makes chlorophyll

Question 22

what does phosphorus do in a plant?

Answer 22

it is needed to help cells grow and divide

Question 23

what is respiration

Answer 23

it is the process of releasing from glucose

Question 24

where does glucose come from in aerobic respiration?

Answer 24

from food

Question 25

where does oxygen come from in aerobic respiration?

Answer 25

from air

Question 26

where does carbon dioxide come from in aerobic respiration?

Answer 26

exhaled

Question 27

where does water come from in aerobic respiration?

Answer 27

exhaled

Question 28

where does respiration happen?

Answer 28

it happens in the mitochondria cells

Question 29

where does combustion take place?

Answer 29

it takes place where burning occurs

Question 30

what gas do animals and plants need for aerobic respiration?

Answer 30

they need oxygen

Question 31

what acidic gas do animals produce in respiration

Answer 31

carbon dioxide

Question 32

where does aerobic respiration take place in animals?

Answer 32

in all cells

Question 33

what turns from clear to milky when carbon dioxide is added to it?

Answer 33

limewater