Biology 2 Topic 2

Question 1

What is diffusion?

Answer 1

Diffusion is the movement of particles from an area of higher concentration to an area of lower concentration

Question 2

Write down the work equation for anaerobic respiration

Answer 2

Glucose -> lactic acid

Question 3

Give one disadvantage of anaerobic respiration

Answer 3

You have to keep breathing hard for a while after you stop exercising to get more oxygen in the blood

Question 4

What is the green substance in leaves that absorbs energy from sunlight

Answer 4

Chloroplasts

Question 5

What is the word equation for photosynthesis?

Answer 5

Carbon + water -> glucose + oxygen

dioxide

Question 6

Name the three factors that can limit photosynthesis

Answer 6

Light intensity, concentration of co2 and temperature

Question 7

Explain why it’s important that a plant doesn’t get too hot

Answer 7

The enzymes will get destroyed

Question 8

What is osmosis?

Answer 8

Osmosis is the movement of water molecules across a partially permeable membrane from a region of high water concentration to a region of low water concentration

Question 9

What is the advantage to a plant of having root hairs?

Answer 9

They absorb minerals from the soil

Question 10

Xylem tubes transport water and minerals. True of false?

Answer 10

True

Question 11

Describe how you collect insects using a pooter

Answer 11

You suck on the shorter tube and put the end of the longer tube over the insect

Question 12

Say you are investigating the population of an organism in a field. Should you place your quadrat randomly or where you can see most of the organism you are studying?

Answer 12

You place it randomly

Question 13

Which of the following statements are true?

a) respiration is breathing in and out
b) carbon dioxide is made in aerobic respiration

Answer 13

b) carbon dioxide is made in aerobic respiration