B6 - Photosynthesis

Question 1

What are the two products of photosynthesis?

Answer 1

Glucose and oxygen

Question 2

What provides the energy for photosynthesis to happen?

Answer 2

Light

Question 3

What do we call the holes in the leaf through which the carbon dioxide enters?

Answer 3

Stomata

Question 4

The specialised cells that trap the sunlight contain a lot of?

Answer 4

Chlorophyll

Question 5

What compound do plants absorb from the soil that they need for photosynthesis?

Answer 5

Water

Question 6

Name the layer of leaf cells that has the most chloroplasts (the plant cell organelles that contain chlorophyll).

Answer 6

Palisade layer

Question 7

What is the missing chemical? _______ + water > glucose + oxygen

Answer 7

Carbon dioxide

Question 8

What chemical is used to test for starch?

Answer 8

Iodine

Question 9

Why do leaves have a large surface area?

Answer 9

To trap sunlight

Question 10

Which of the changes below will not increase photosynthesis?

Answer 10

Increased concentration of oxygen

Question 11

What is the name for the process by which the carbon dioxide enters the leaf?

Answer 11

Diffusion

Question 12

What type of reaction is photosynthesis?

Answer 12

Endothermic

Question 13

Plants store glucose as

Answer 13

Starch

Question 14

Chlorophyll is

Answer 14

A green pigment found in chloroplasts

Question 15

What do we call the tube that carries the glucose once it is made by the leaves?

Answer 15

The phloem

Question 16

What is the name of the hollow tube that takes water into the leaf?

Answer 16

The xylem

Question 17

Once the carbon dioxide enters the leaf it passes through gaps in a layer of cells called ?

Answer 17

Spongy mesophyll

Question 18

Limiting factors: there are three things that affect how much photosynthesis takes place in a plant. What are they?

Answer 18

Light intensity, carbon dioxide concentration and temperature

Question 19

What is glucose used for in the plant?

Answer 19

Respiration, storage and cellulose for cell wall

Question 20

What is true about root hair cells?

Answer 20

They don’t have chloroplasts