B2.3 Photosyntheis

Question 1

What does the waxy cuticle do?

Answer 1

A water proof layer to reduce evaporation

Question 2

What does the upper epidermis do?

Answer 2

Let’s light in

Question 3

What does the stoma do?

Answer 3

Let gas diffuse in and out
Water to leave
Co2 and O2 out

Question 4

What does the spongy layer do?

Answer 4

Gas exchange

Photosynthesis

Question 5

What does the vascular bundle do?

Answer 5

Xylem water and minerals

Phloem sugar

Question 6

What is the photosynthesis equation?

Answer 6

Carbon dioxide and water to oxygen and glucose

Question 7

What’s cellulose for?

Answer 7

Build cell walls

Question 8

What is starch for?

Answer 8

Food source

Question 9

What’s sucrose for?

Answer 9

To from nectar

Question 10

What are lipids for?

Answer 10

Seeds

Energy

Question 11

What are the limiting factors?

Answer 11

Light
Co2
Temperature

Question 12

Explain temperature as a limiting factor?

Answer 12

Enzymes change shape and denature so no longer work when it’s too high

Question 13

What does nitrate do in plants?

Answer 13

Make protein

Without it’s small and stunted

Question 14

What does magnesium do in plants?

Answer 14

Make chlorophyll

Without it will go pale, yellow and die

Question 15

What are hydroponics?

Answer 15

Crop production using mineral water

No soil

Question 16

Advantages and disadvantages of hydroponics?

Answer 16

No weeds, mo pesticides, less water

Need technology, cost more, more equipment

Question 17

Describe a leaf structure?

Answer 17

Waxy cuticle
Upper epidermis
Chloroplast
Spongy layer
Vascular bundle
Lower epidermis
Stoma
Guard cells