Ch.5 Photosynthesis (part 1)

Question 1

What is the main source of energy for all living organisms?

Answer 1

Sun (sunlight)

Question 2

Compare the metabolism of autotrophs and heterotrophs.

Answer 2

Autotrophs use energy
from sunlight TO MAKE organic compounds, while Heterotrophs get energy from FOOD instead of directly making their own energy.

Question 3

What is the main purpose of cellular respiration?

Answer 3

• to release usable energy in order to power the cell, making ATP.

Question 4

What is the role of oxygen in cellular respiration?

Answer 4

It is the final electron acceptor of the electron transport chain, responsible for the progress of forming ATP.

Question 5

What are the products of photosynthesis?

Answer 5

1 glucose molecule and 6 atmospheric oxygen.

Question 6

What is the role of chlorophyll in photosynthesis?

Answer 6

Its job is to absorb mostly blue/red lights, reflecting green/yellow lights.

Question 7

What are two stages of photosynthesis called?

Answer 7

• Light-dependent reactions
  (1. Absorption of Light Energy
  2. Conversion of Light Energy)

Question 8

What are the stages of cellular respiration and what are the products?

Answer 8

1. Glycolisis = 2 pyruvate, 2 ATP, 2 NADH
2. Krebs Cycle = 2 ATP, 6 NADH, 2 FADH2
3. Electron Transport Chains = 6 CO2, 6H2O, 38 ATP