5.6.1 Photosynthesis & Respiration

Question 1

Where does photosynthesis occur?

Answer 1

In autotrophic organisms such as plants, algae, and cyanobacteria

Question 2

What occurs in the process of photosynthesis?

Answer 2

Light energy is trapped and used to convert simple inorganic compounds into complex organic compounds. Energy is stored within these organic compounds

Question 3

Where does respiration occur?

Answer 3

In all living organisms

Question 4

What occurs in the process of respiration?

Answer 4

Energy is released from organic molecules in living cells. The process can be aerobic (oxygen) or anaerobic (no oxygen)

Question 5

State 8 differences between photosynthesis and respiration

Answer 5

1)
Photosynthesis = stores energy
Aerobic/anaerobic respiration = releases energy
2)
Photosynthesis = occurs in chloroplasts
Aerobic respiration = occurs in mitochondria
Anaerobic respiration = occurs in cytoplasm
3)
Photosynthesis = coenzyme NADP
Aerobic/anaerobic respiration = coenzyme NAD is used
4)
Photosynthesis = requires light
Aerobic/anaerobic respiration = does not require light
5)
Photosynthesis = anabolic reaction (builds)
Aerobic/anaerobic respiration = catabolic reaction (breaks down)
6)
Photosynthesis = end products: oxygen and glucose
Aerobic respiration = end products: carbon dioxide and water
Anaerobic respiration = end products: lactate or ethanol