Unit 4: Respiration

Question 1

Why is ATP described as an IMMEDIATE source of energy?

Answer 1

~ Energy release is a ONE STEP process

~ Energy is released in SMALL, MANAGEABLE QUANTITIES

Question 2

Where does Glycolysis occur?

Answer 2

in the cytoplasm, NOT IN mitochondria - ANAEROBIC RESPIRATION

Question 3

In anaerobic conditions, why is NAD regenerated?

Answer 3

~ to allow GLYCOLYSIS to continue

~ to produce ATP

Question 4

Where does OXIDATIVE PHOSPHORYLATION occur?

Answer 4

CRISTAE (like Kunji’s Christy) of the MITOCHONDRIA

Question 5

In which steps in CO2 produced in an animal cell?

Answer 5

LINK REACTION and KREBS CYCLE

Question 6

Why is ANAEROBIC respiration less efficient than AEROBIC respiration?

Answer 6

ANAErobic requires MORE GLUCOSE for the SAME AMOUNT of ATP

Question 7

How is ATP produced in Oxidative Phosphorylation?

Answer 7

energy from OXIDATION

Question 8

Where does the Krebs Cycle take place?

Answer 8

Mitochondria Matrix

Question 9

What happens to the energy which is not transferred to ATP?

Answer 9

LOST as HEAT

Question 10

Three uses of energy from ATP in a cell?

Answer 10

~ Cell division
~ Protein synthesis
~ DNA synthesis

Question 11

What is the equation for AEROBIC respiration?

Answer 11

Glucose + 6 Oxygen ➡️ Co2 + H2O + Energy

Question 12

Define “Respiration”:

Answer 12

Process where PLANT 🌻 and ANIMAL 🐮 cells release 💨 ENERGY from GLUCOSE

Question 13

What measurements should be taken to calculate the rate of aerobic respiration in mm3 of oxygen g–1 h–1? (Jan 11)

Answer 13

1. Distance drop moves and time
2. Mass of insect
3. Diameter of tubing