Leaves and Plants

Question 0

Upper epidermis

Answer 0

Single layer if cells forming the upper skin
Allows sunlight to go through
Creates the circle to reduce transpiration

Question 1

Cuticle

Answer 1

Transparent, waxy and waterproof

Allows sunlight to enter whilst reducing transpiration

Question 2

Palisade mesophyll

Answer 2

Contains a large number of chloroplasts to trap sunlight and is where photosynthesis takes place

Question 3

Vascular bundle

Answer 3

Strengthens the plant
Transports water from roots to leaves (xylem vessel)
Transports glucose from leaf to other parts of the plant

Question 4

Spongy mesophyll

Answer 4

Contains a small number of chlorophyll, but has large air spaces for diffusion of gases

Question 5

Air spaces

Answer 5

Allows gas to diffuse through the cells

Question 6

Stomata

Answer 6

Pores to let carbon dioxide, oxygen and water in and out of the cell

Question 7

Guard cells

Answer 7

Open and closes to reduce transpiration by the pore of the stomata changing shape

Question 8

Photosynthesis

Answer 8

Converts sunlight E to chemical E

CO2 + 6H2O -> (in the presence of sunlight and chlorophyll) C6H12O6 + 6O2

Question 9

3 things glucose is used for

Answer 9

Aerobic respiration
Transported to storage organs
Transported to new growth areas

Question 10

Cellular respiration

Answer 10

Needed for new tissue and structure production
Muscle contraction
Manufacturing chemicals

Question 11

Aerobic respiration (with O2)

Answer 11

Glucose plus oxygen produces carbon dioxide and water

Question 12

Anaerobic respiration (no oxygen)

Answer 12

Releases less energy
Animals: glucose -> lactic acid and some energy
Plants: glucose -> alcohol and carbon dioxide