Biology Ch. 9-10 Review

Question 1

What is energy?

Answer 1

The ability to do work.

Question 2

What are some examples of when you use energy?

Answer 2

Exercise and active transport.

Question 3

The energy we need comes from ______.

Answer 3

food

Question 4

What are the forms energy comes in?

Answer 4

1. Light
2. Heat
3. Electricity
4. Chemical Bonds

Question 5

How does a cell release energy from an ATP molecule?

Answer 5

Breaking the bond between the second and third phosphate.

Question 6

What is ATP used to carry out?

Answer 6

Active transport

Question 7

ATP also powers the synthesis of ______ and responds to ______ signals on the cell surface.

Answer 7

proteins and chemical

Question 8

The cell only contains enough ATP for a _______ of activity.

Answer 8

few seconds

Question 9

Cells can regenerate ATP by using the energy from ________.

Answer 9

glucose

Question 10

What are heterotrophs?

Answer 10

Organisms that obtain food by consuming living things.

Question 11

What are autotrophs?

Answer 11

Organisms that make their own food.

Question 12

What process allows autotrophs to do so?

Answer 12

Photosynthesis

Question 13

How many phosphates groups are in ATP?

Answer 13

Three phosphates groups

Question 14

A _______ is the amount of energy needed to raise the temperature of 1g of water 1 degree celsius.

Answer 14

calorie

Question 15

The Calorie (capital C) on food labels is actually a __________.

Answer 15

kilocalorie

Question 16

How many calories are in a kilocalorie?

Answer 16

1000

Question 17

What are mitochondria?

Answer 17

The structures in a cell that convert chemical energy into energy that can be used by the cell.

Question 18

Glycolysis occurs in what part of the cell?

Answer 18

Cytoplasm

Question 19

The Krebs Cycle occurs in what part of the cell?

Answer 19

Mitochondria

Question 20

During glycolysis there is only a net gain of _______.

Answer 20

2 ATP