Plant nutrition

Question 1

Green plants make the carbohydrate ____from the raw materials ______ _______and _____

Answer 1

Green plants make the carbohydrate glucose from the raw materials carbon dioxide and water

Question 2

What is photosynthesis?

Answer 2

the process by which plants manufacture carbohydrates from raw materials using energy from light

Question 3

Photosynthesis word equation?

Answer 3

Light evergy
carbon dioxide + water –> glucose + oxygen
Chlorophyll

Question 4

Where does photosynthesis take place?

Answer 4

It takes place in the chloroplast

Question 5

What is chlorophyll?

Answer 5

Chloroplasts contain the green chemical called chlorophyll . Chlorophyll absorbs the energy from sunlight that allows carbon dioxide and water to react .

Question 6

The products of photosynthesis are

Answer 6

glucose, oxygen

Question 7

The reactants of photosynthesis are

Answer 7

carbon dioxide, water

Question 8

WAX CUTICLE

Answer 8

PROTECTIVE LAYER ON TOP OF THE LEAF, PREVENTS WATER FROM EVAPORATING

Question 9

UPPER EPIDERMIS

Answer 9

THIN AND TRANSPARENT TO ALLOW LIGHT TO ENTER PALISADE MESOPHYLL LAYER UNDERNEATH IT

Question 10

PALISADE MESOPHYLL

Answer 10

COLUMN SHAPED CELLS TIGHTLY PACKED WITH CHLOROPLASTS TO ABSORB MORE LIGHT, MAXIMISING PHOTOSYNTHESIS

Question 11

SPONGY MESOPHYLL

Answer 11

CONTAINS AIR SPACES that increase the surface area for gas diffusion .

Question 12

LOWER EPIDERMIS

Answer 12

CONTAINS GUARD CELLS AND STOMATA

Question 13

GUARD CELL

Answer 13

Regulates the opening and closing of the stomata

Question 14

STOMATA

Answer 14

WHERE GAS EXCHANGE TAKES Place opens DURING THE DAY, CLOSES DURING THE NIGHT

Question 15

VASCULAR BUNDLE

Answer 15

CONTAINS XYLEM AND PHLOEM TO TRANSPORT SUBSTANCES TO AND FROM THE LEAF

Question 16

XYLEM

Answer 16

TRANSPORTS WATER INTO THE LEAF

Question 17

PHLOEM

Answer 17

TRANSPORTS SUCROSE AND AMINO ACIDS AROUND THE PLANT

Question 18

What adaptions do leaves have for photosynthesis?

Answer 18

-Leaves are thin so gases can reach cells easily.
-Leaves are wide and flat to create a large surface area and to absorb as much light as possible
-Leaves contain lots of chloroplasts which contain the green pigment chlorophyll
-Leaves have lots of veins to carry water to the cells and carry glucose away .
-Leaves have holes, called stomata, on their underside through which gases move in and out.

Question 19

Why is the distribution of stomata between the upper and lower epidermis is uneven?

Answer 19

The lower epidermis (the underside of the leaf) has morebecause it is more often in the shade and so it is cooler, which means evaporation won’t take place as much.