Earlier Chapters

Question 1

Structure of ATP

Answer 1

3–phosphates

1–adenoosine

Question 2

Define Metabolism

Answer 2

the sum total of all chemical reactions that occur in cells

Question 3

How do we use ATP to generate energy

Answer 3

ATP is broken down to ADP

Question 4

Three stages of glucose oxidation

Answer 4

• Glycolysis
• Krebs cycle
• Electron Transport chain

Question 5

1 molecule of glucose is converted into how many molecules of pyruvate during glycolysis?

Answer 5

2

Question 6

Glycolysis results in how many ATP and NADH

Answer 6

2 A2 ATP & 2 NADH

Question 7

Does Glycolysis require O2?

Answer 7

NO - Pyruvate will go to Krebs only if O2 is available

Question 8

Where does Glycolysis end

Answer 8

with pyruvate in the cytosol

Question 9

What does Krebs cycle produce in 2 cycles?

Answer 9

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

Question 10

Krebs produces CO2 but is O2 needed?

Answer 10

NO

Question 11

where does Electron transport chain take place?

Answer 11

Inner Mitochondrial membrane

Question 12

Where does Krebs cycle take place?

Answer 12

Mitochondrial matrix

Question 13

How many molecules of ATP are produced by 1 NADH during Electron Transport chain?

Answer 13

2.5

Question 14

3 ways ions can move across the membrane

Answer 14

• Simple diffusion
• facilitated diffusion
• active transport

Question 15

Membrane potential

Answer 15

refers to voltage inside membrane, relative to outside

Question 16

Nernst Equation

Answer 16

calculates the electrical membrane potential required to oppose a single ion’s concentration gradient

Question 17

Exocytosis

Answer 17

Vesicle INSIDE the cell, moves to and then fuses with the plasma membrane contents are then released into the extracellular fluid