Bioenergetics

Question 1

What does photosynthesis transfer?

Answer 1

photosynthesis transfers light energy into chemical energy inside plants.

Question 2

Is photosynthesis exothermic or endothermic?

Answer 2

Photosynthesis is an endothermic reaction.

Question 3

what are the reactants for photosynthesis?

Answer 3

The reactants in photosynthesis are carbon dioxide and water.

Question 4

The products of photosynthesis are..?

Answer 4

glucose and oxygen.

Question 5

Substances associated with photosynthesis have the following chemical symbols:
Carbon dioxide
Water
Oxygen
Glucose

Answer 5

Carbon dioxide - CO2
Water - H2O
Oxygen - O2
Glucose - C6H12O6.

Question 6

Glucose made in photosynthesis is used for:

Answer 6

production of cellulose cell walls, producing amino acids, producing fats and oils and can be stored as insoluble starch.

Question 7

The rate of photosynthesis can be affected by:

Answer 7

carbon dioxide concentration
light intensity
temperature
amount of chlorophyll.

Question 8

is aerobic respiration is an endothermic or exothermic reaction?

Answer 8

Aerobic respiration is an exothermic reaction

Question 9

where does Aerobic respiration take place?

Answer 9

Aerobic respiration takes place mitochondria.

Question 10

reactants in aerobic respiration are…?

Answer 10

glucose and oxygen.

Question 11

products of aerobic respiration are…?

Answer 11

carbon dioxide, water and energy.

Question 12

energy released in aerobic respiration is used for:

Answer 12

movement, keeping warm and chemical reactions to build large molecules.

Question 13

During exercise what rates and volume increase

Answer 13

During exercise, heart rate, breathing rate and breath volume increases.

Question 14

Anaerobic respiration does not require

Answer 14

Anaerobic respiration does not require oxygen.

Question 15

Anaerobic respiration produces …. nrg then aerobic respiration

Answer 15

less energy.

Question 16

…. acid is produced during anaerobic respiration and is toxic to the body.

Answer 16

Lactic acid is produced during anaerobic respiration and is toxic to the body.

Question 17

Oxygen debt is the

Answer 17

amount of oxygen needed to break down the lactic acid produce in anaerobic respiration.

Question 18

Anaerobic respiration in plant and yeast cells produces

Answer 18

carbon dioxide and ethanol.

Question 19

Anaerobic respiration in yeast can be used in the

Answer 19

manufacture of bread and alcohol.

Question 20

Metabolism is the sum of

Answer 20

all reactions inside the cells of the body.

Question 21

Metabolism includes:

Answer 21

production of lipid molecules,
production of amino acids,
respiration,
breakdown of excess protein
conversion of glucose to starch and glycogen.