Chapter 2 Section 1: Characteristics Of Living Things

Question 1

ATP

Answer 1

ATP adenosine triphosphate is a molecule that acts as the main energy source for cell processes

Question 2

Carbohydrate

Answer 2

A class of molecules that includes sugars, starches, and fiber

Question 3

Cell

Answer 3

The smallest functional unit of all living organisms

Question 4

Consumer

Answer 4

An organism that eats other organisms or organic matter

Question 5

Decomposer

Answer 5

An organism that gets its energy by breaking down the remains of dead organisms or animal waste and consuming or absorbing the nutrients

Question 6

DNA

Answer 6

Deoxyribonucleic acid is a molecule that is present in all living cells and that determines the traits that a living thing inherits and needs to live

Question 7

Homeostasis

Answer 7

The maintenance of a constant internal state in a changing environment

Question 8

Lipid

Answer 8

A fat molecule or a molecule that have similar properties

Question 9

Metabolism

Answer 9

The sum of all chemical processes that occur in an organism

Question 10

Nucleic acid

Answer 10

Molecule made up of subunits called nucleotides

Question 11

Phospholipid

Answer 11

Specific type of lipid that contains phosphorus and a structural component of cell membranes

Question 12

Producer

Answer 12

An organism that makes it’s own food by using energy from its surroundings

Question 13

Protein

Answer 13

Molecule that is made up of amino acids and that is needed to build and repair body structures and to regulate processes in the body

Question 14

Sexual reproduction

Answer 14

Reproduction in which the sex cells from two parents unite to produce offspring that share traits from both parents

Question 15

Asexual reproduction

Answer 15

Reproduction that does not involve the union of sex cells and in which one parent produces offspring that are genetically identical to the parent