CHAP 5

Question 1

It supplies the energy needed for the growth and maintenance of the plant.

Answer 1

Cellular respiration

Question 2

It provides carbon skeletons needed for the synthesis of a large number of other essential plants products

Answer 2

Cellular respiration

Question 3

What is the formula of Cellular Respiration

Answer 3

C6H12O6 + 6 O2 + 6 H2O → 6 CO2 + 12 H2O

note: all the number from the right was written downward

Question 4

_____ are known as the “powerhouses of
the cell”. They are organelles that act like a digestive
system which takes in nutrients, breaks them down,
and creates energy rich molecules for the cell.

Answer 4

Mitochondria

Question 5

The biochemical processes of the cell are known as _____

Answer 5

Cellular respiration

Question 6

Fermentation A n a e r o b i c has no oxygen present. T or F? And give some example.

Answer 6

True.
For Alcohol formation, ex. yeast
For L actic acid fermentation, ex. Muscles

Question 7

What is the Respiration formula for Anaerobic Respiration Lactic Acid fermentation?

Answer 7

С6Н1206 → СзН503 + 2 АТР

glucose → lactic acid + 2 ATP

Question 8

What is the Respiration formula for Anaerobic Respiration alcohol fermentation?

Answer 8

C6H1206 → C2H6O + CO2 + 2 ATP

glucose → ethyl alcohol + carbon dioxide + 2 ATP

Question 9

What is the stages of cellular respiration: energy for life?

Answer 9

Stage 1: Glycolysis
Stage 2: Oxidation of Pyruvate and Kreb’s Cycle
Stage 3: Electron Transport Chain

Question 10

_____ an anaerobic process (oxygen is not required)
that happens in the cytoplasm. It requires a molecule of glucose (6-carbon sugar) to form pyruvic acid/pyruvate (3-carbon compound), NADH2 and ATP.

Answer 10

Stage 1: Glycolysis

Question 11

_____losses a carbon atom through oxidation, reduces
NAD+ to NADH (NAD+ + H+) and forms Acetyl-CoA

Answer 11

Stage 2: Oxidation of Pyruvate and Kreb’s Cycle

Question 12

____ Acetyl CoA enters the Kreb’s Cycle by combining
with a starting compound, a 4-carbon molecule, the
Oxaloacetate, to form 6-carbon substrate, Citric Acid,
which is an essential part of the cycle (Devlin, 1969).
- also knowns as Citric Acid Cycle
- occurs within the mitochondria (matrix).

Answer 12

Stage 2: Oxidation of Pyruvate and Kreb’s Cycle

Question 13

________last stage of cellular respiration and the most
efficient in ATP production that occurs in the inner
membrane of the mitochondria.

Answer 13

Stage 3: electron transport chain

Question 14

______very similar to the ETC in the thylakoid (ATP
synthase)

Answer 14

Stage 3: electron transport chain

Question 15

• H+ are pumped continuously, making the inner
  membrane positively charged.
• oxygen is the final electron acceptor at the end of
  the chain

Answer 15

Stage 3: electron transport chain

Question 16

Why oxygen is important as the final electron acceptor??

Answer 16

• it reacts with 4H+ ions and 4 e- to form 2 H2O
  molecules.
• proteins in the ETC cannot accept electrons
  unless they are passed on to the oxygen.
• if these proteins cannot accept electrons, the
  entire chain is blocked, and ATP production stops.