Zoology week 6 lab

Question 1

what is cellular respiration?

Answer 1

A process of taking oxygen and glucose and turning them into ATP

Question 2

what does Aerobic and Anaerobic mean?

Answer 2

Aerobic - oxygen
Anaerobic - no oxygen

Question 3

what are they 3 main stages of aerobic cellular respiration?

Answer 3

glycolysis
Citric Acid Cycle (krebs)
Electron Transport Chain (ETC)

Question 4

What does ATP stand for?

Answer 4

Adenosine Triphosphate

Question 5

what nutrient molecule is necessary for glycolysis to begin?

Answer 5

Glucose. Chemical reactions formed by ATP “jump starts” the process.

Question 6

what does glucose become at the end of glycolysis?

Answer 6

Pyruvic acid

Question 7

What else is produced during the process of glycolysis?

Answer 7

NADH + Hydrogen + Electrons

Question 8

there is a brief step after the end of glycolysis, and before the kreb cycle begins. What 3 substances are produced in this intermediate step?

Answer 8

Acetyl COA
Acetyl 2
NADH

Question 9

The Krebs cycle has many steps. What are the products of the krebs cycle?

Answer 9

ATP, NADH, FADH2, CO2, Hydrogens, Electrons

Question 10

In which steps of cellular respiration is CO2 formed? Where does CO2 go?

Answer 10

Krebs + intermediate. CO2 goes into blood (glucose)

Question 11

What are at least 2 names for the 3rd step of cellular resperation?

Answer 11

Electron Transport Chain
electron transfer phosphorylation

Question 12

why is it so important about NADH and FADH2 and their accompanying electrons?

Answer 12

They are bringing electrons to the ETC

Question 13

What are the resulting 2 products of ETC?

Answer 13

36 ATP molecules
H2O

Question 14

one of these products from ATP requires what element?

Answer 14

Oxygen

Question 15

Where did oxygen come from?

Answer 15

Breathing in

Question 16

In which step of aerobic cellular respiration do we make at least 10 times more ATP than in the other 2 steps?

Answer 16

ETC

Question 17

Why is it so important to animals and humans to have 10 times more ATP?

Answer 17

We need oxygen because we and animals need that much energy from the air to live.

Question 18

If we were anaerobic, and couldn’t utilize the ETC, would we be more tired than we already are?

Answer 18

Yes, because we wouldn’t have 36 ATP and only have 2.

Question 19

Given the situation with only having 2 ATP, what other options would there be for producing any ATP?

Answer 19

Fermentation - follows glycolysis when oxygen is not present.

Question 20

what are the 2 types of this fermentation process called?

Answer 20

Alcoholic acid
lactic acid

Question 21

What do these fermentation processes produce?

Answer 21

NAD+, glycolysis (ATP)