B4: Bioenergetics (triple)

Question 1

What is the word equation for photosynthesis?

Answer 1

Carbon dioxide + water —> glucose + oxygen

Question 2

What are the 5 main uses for glucose in a plant?

Answer 2

Respiration- energy form it is used to convert it into other substances
Making cellulose- to make cell walls
Making amino acids- it is combined with nitrate ions. Amino acids are made into proteins
Stored as oils or fats- turned into lipids to be stored in seeds
Stored as starch- ready for when no photosynthesis can happen

Question 3

What effects the rate of photosynthesis?

Answer 3

Light intensity
Carbon dioxide levels
Temperature

Question 4

Light intensity=

Answer 4

1 / distance^2

Question 5

Define respiration.

Answer 5

The process of transferring energy form glucose,which goes on in every cell.

Question 6

What are 3 uses for the energy produced in respiration?

Answer 6

Build up larger molecules from smaller ones
Allow muscles to contract
To keep body temperature stable in colder conditions

Question 7

What is the word equation for respiration?

Answer 7

Glucose + oxygen —> carbon dioxide + water

Question 8

What is the word equation for anaerobic respiration?

Answer 8

Glucose —> lactic acid

Question 9

What is the word equation for anaerobic respiration in plants and yeast.

Answer 9

Glucose —> ethanol + carbon dioxide