Bioenergetics

Question 1

What’s the word equation for photosynthesis?

Answer 1

Carbon dioxide + water -> glucose + oxygen

Question 2

First way glucose is used

Answer 2

For respiration - transfers energy from glucose which enables the plants to convert the rest of the glucose into various other useful substances

Question 3

Second way glucose is used

Answer 3

Making cellulose - glucose is converted to cellulose to make strong cell walls

Question 4

Third way glucose is used

Answer 4

Making amino acids - glucose is combined with nitrate ions (absorbed from soil) to make amino acids , which are then made into proteins

Question 5

Fourth way glucose is used

Answer 5

Stored as oils or fats - glucose is turned into lipids for storing in seeds

Question 6

Fifth way glucose is used

Answer 6

Stored as starch - glucose is turned into starch and stored to be ready to use when photosynthesis isn’t happening. Starch is better at storing than glucose

Question 7

Three limiting factors of photosynthesis:

Answer 7

Light intensity, concentration of carbon dioxide, and temperature

Question 8

How does carbon dioxide affect photosynthesis?

Answer 8

Too little carbon dioxide slows it down as it’s one of the raw materials needed for photosynthesis. The amount of carbon dioxide will only increase the rate of photosynthesis up to a certain point

Question 9

How do greenhouses help farming?

Answer 9

They create the ideal environment for plants to grow in as they trap heat, carbon dioxide levels can be increased with a paraffin heater, and artificial light can be supplied.
Greenhouses also keep them free from pests and diseases

Question 10

What is metabolism?

Answer 10

The sum of all reactions that happen in a cell or the body