Lecuture 6: energetics, cannibalism and cellular respiration

Question 1

Yield energy from electron transfer between chemicals. Yeilds electrons from organic compounds

Answer 1

Chemoorganotrophy

Question 2

Yeilds electrons from inorganic compounds

Answer 2

Chemolithotrophy

Question 3

Absorption of light and carbon dioxide fixation

Answer 3

Photoautotrophy

Question 4

Absorption of light energy without carbon dioxide fixation

Answer 4

Photohetertophy

Question 5

Oxidized means?

Answer 5

Electron donor

Question 6

Reduction means?

Answer 6

Electron exceptor

Question 7

ATP can transfer energy to cells in three different ways…

Answer 7

• hydrolysis-realeasing phosphate (P)
• hydrolysis-realeasing pyrophosphate (PP)
• phosphorylation of an orangic molecule

Question 8

_____ can carry three times as much energy as ATP

Answer 8

NADH

Question 9

Uses iron to transfer electrons

Answer 9

Cytochromes

Question 10

Where are electron carriers located?

Answer 10

Plasma membrane for bacteria and archaea cells

Within the internal mitochondrial membrane for eukaryotic

Question 11

Protein component of the enzyme

Answer 11

Apoenzyme

Question 12

Non-protein, inorganic ion component of an enzyme

Answer 12

Cofactor

Ex: iron

Question 13

Nonprotein, organic molecule component of an enzyme

Answer 13

Coenzyme

Ex vitamins

Question 14

The enzyme factor plus either a coenzyme or cofactor

Answer 14

Holoenzyme

Question 15

The transition reaction or intermediate step…..

Answer 15

Converts pyruvate to acetyl-CoA

Yeilds two acetyl-CoA, two CO2, Two NADH

Question 16

The TCA, critic acid/ Krebs cycle

Answer 16

Oxidation of acetyl-CoA produces

2 ATP, 4 CO2, 6NADH, and 2 FADH2

Question 17

I wrap net gain of 1 ATP and 2NADPH

Amphibolic

Answer 17

Pentose phosphate pathway