Plant Structure And Photosynthesis

Question 0

How are palisade leaf cells adapted for photosynthesis?

Answer 0

They have lots of chloroplasts
They are tall meaning they have a large surface area for absorbing CO2
Thin shape means they can be packed in
They’re the top of the leaf

Question 1

What sort of cell carries out most photosynthesis?

Answer 1

Palisade leaf cells

Question 2

What cells open and then close the pores on a leaf?

Answer 2

Guard cells

Question 3

How are guard cells adapted to their purpose?

Answer 3

When the plant has lots of water cells become turgid. This opens the stomata.
When it is short they become flaccid and close.
They have thin outer walls and thin inner walls so they open and close
Sensitive to light so they close at night

Question 4

Name three types of tissue in leaves

Answer 4

Mesophyll
Xylem and phloem
Epidermal

Question 5

What does mesophyll tissue do?

Answer 5

It is where the photosynthesis occurs.

Question 6

What does the xylem and phloem do?

Answer 6

They transport minerals and water.

Question 7

What does the epidermal tissue do?

Answer 7

It covers the whole plant

Question 8

Where does gases come in and out of the leaf?

Answer 8

The atoms

Question 9

Where does photosynthesis happen in cells?

Answer 9

The chloroplasts

Question 10

How does sunlight get into a leaf?

Answer 10

It beats down on the epidermis and gets through to the palisade cells

Question 11

How does water get to the leaf?

Answer 11

Through the xylem.

Question 12

How does co2 get to the leaf?

Answer 12

It diffuses in through the stoma.

Question 13

What is the limiting factor?

Answer 13

What makes photosynthesis slow down

Question 14

What affects the rate of photosynthesis?

Answer 14

The water
The amount of CO2
The temperature

Question 15

Why will light only increase the rate of photosynthesis up to a point?

Answer 15

Because the CO2 or temperature will be limiting it.

Question 16

Why will carbon dioxide only increase the rate of photosynthesis up to a pint?

Answer 16

It will be limited by the water or CO2

Question 17

Why does a higher temperature sometimes slow down photosynthesis?

Answer 17

It denatures the enzymes at about 45C

Question 18

How do plants use glucose?

Answer 18

For respiration 
Making cell walls
Making proteins
Storing in seeds
Storing as starch

Question 19

How do plants make cell walls?

Answer 19

They convert the glucose into cellulose to make cell walls

Question 20

How do plants make proteins?

Answer 20

The glucose is combined with nitrate ions to make amino acids.

Question 21

How do plants use glucose in seeds?

Answer 21

Glucose is turned into lipids and is stored.

Question 22

Why do plants make starch?

Answer 22

As storage for when photosynthesis isn’t happening in winter.
It is stored and it’s insoluble.