Chapter 9 Bio

Question 1

Cellular Respiration

Answer 1

Process which releases energy by breaking down glucose and other food molecules in the presence of oxygen.

Question 2

Glycolysis

Answer 2

Breaking down glucose.

Question 3

Krebs Cycle (citric acid cycle)

Answer 3

Pyruvic acid 3-carbon is broken down into 3 CO2 in a series of energy-extracting reactions.

Question 4

Electron transport chain

Answer 4

A series of electron carrier proteins that use high energy electrons from glycolysis and Krebs cycle to convert ADP into ATP.

Question 5

Aerobic

Answer 5

With oxygen

Question 6

Anaerobic

Answer 6

Without oxygen.

Question 7

Pyruvic acid

Answer 7

A 3-carbon molecule made from glycolysis.

Question 8

NAD+ (NADH)

Answer 8

An electron carrier.

Question 9

ATP synthase

Answer 9

A protein that binds a phosphate to ADP to make ATP.

Question 10

Fermentation

Answer 10

Anaerobic respiration.

Question 11

Where do humans get our source of energy?

Answer 11

Food

Question 12

What is a calorie?

Answer 12

The amount of energy needed to raise 1 gram of water 1 degree Celsius.

Question 13

How many calories per gram of the following: carbs, proteins, lipids

Answer 13

Carbs: 4
Proteins: 4
Lipids: 9

Question 14

In order the steps for extracting the energy from glucose when oxygen is present

Answer 14

1) Glycolysis
2) Krebs cycle
3) Electron Transport Chain

Question 15

What do we call this overall process?

Answer 15

Cellular respiration

Question 16

Cellular respiration only occurs in the presence of what?

Answer 16

Oxygen

Question 17

Where in the cell does glycolysis occur?

Answer 17

Cytoplasm

Question 18

Where in the cell does Krebs cycle occur?

Answer 18

Mitochondria matrix

Question 19

Where does ETC occur?

Answer 19

Inner mitochondrial membrane

Question 20

Where in the cell does fermentation occur?

Answer 20

Cytoplasm

Question 21

Which processes require oxygen?

Answer 21

Krebs cycle and ETC

Question 22

Which process doesn’t require oxygen?

Answer 22

Glycolysis and fermentation

Question 23

Glycolysis starts with what molecule?

Answer 23

Pyruvic acid

Question 24

During glycolysis, glucose is broken down into what molecule?

Answer 24

Pyruvic acid

Question 25

Calorie

Answer 25

Kilocalorie