Biology Unit 1 Test

Question 1

Name the 4 Macromolecules

Answer 1

1. Carbohydrates
2. Nucleic Acids
3. Lipids
4. Protein

Question 2

What is the Cell Theory?

Answer 2

All living things are made out of cells, cells are the basic unit of life of all organisms, and all cells come from pre-existing cells.

Question 3

What is a Chemical Reaction?

Answer 3

When molecular bonds are broken or formed

Question 4

What is a Substrate?

Answer 4

A molecule that the Enzyme works on

Question 5

What Bonds Contain Energy?

Answer 5

Molecular bonds

Question 6

What do you call a protein that speeds up chemical reactions?

Answer 6

Enzyme

Question 7

What is a Polar Molecule?

Answer 7

Different charges on both sides of the molecule. One positive & One Negative.

Question 8

What is a Product?

Answer 8

The resulting molecule of the reaction

Question 9

What is an Enzyme?

Answer 9

Proteins that facilitate reactions (make them faster)

Question 10

What is Cohesion? (Water Ver.)

Answer 10

When water sticks to itself

Question 11

What is Adhesion? (Water Ver.)

Answer 11

When water sticks to other things

Question 12

What is a Covalent Bond?

Answer 12

The sharing of electrons between atoms.

Question 13

What is an Ionic Bond?

Answer 13

Complete transfer of valence electron(s) between atoms,

Question 14

The interaction of several different species living in the same area is called?

Answer 14

Community

Question 15

What kind of chemical bond holds together a water molecule?

Answer 15

Covalent Bond

Question 16

What is the molecule called that the enzyme works on?

Answer 16

Substrate

Question 17

An ecosystem involves?

Answer 17

All the species living in the same area and the influence of environmental factors such as sunlight and water

Question 18

What is a tissue?

Answer 18

A collection of different cells that work together

Question 19

What kind of chemical bond makes water molecules stick to other things?

Answer 19

Hydrogen bond

Question 20

What is it called where the substrate binds to the enzyme?

Answer 20

Active Site

Question 21

What kind of chemical bond makes water molecules stick to each other?

Answer 21

Hydrogen Bond

Question 22

If you put a few atoms together what do they form?

Answer 22

A Molecule

Question 23

What is the property of water that makes it form droplets?

Answer 23

Cohesion

Question 24

Why do organisms need many different types of cells?

Answer 24

Different cells are specialized to perform specific functions.

Question 25

What is the property of water that makes it possible for something to float?

Answer 25

Surface Tension

Question 26

What is the difference between atoms and molecules?

Answer 26

Molecules are made of several atoms connected to each other

Question 27

What is the property of water that makes it stick to other things like the windshield of your car?

Answer 27

Adhesion

Question 28

What are the monomers of Carbohydrates (C+H+O)?

Answer 28

Sugar

Question 29

What are the polymers of Carbohydrates (C+H+O)?

Answer 29

Starch or Complex Carbs

Question 30

What are the monomers of Proteins (C+H+O+N)?

Answer 30

Amino Acids ( N-C-C )

Question 31

What are the polymers of Proteins(C+H+O+N)?

Answer 31

Polypeptides ( N-C-C-N-C-C-N-C-C )

Question 32

What are the monomers of Nucleic Acids (C+H+O+N+P)?

Answer 32

Nucleotides

Question 33

What are the polymers of Nucleic Acids (C+H+O+N+P)?

Answer 33

Double Helix

Question 34

Do Lipids (C+H) have monomers?

Answer 34

No

Question 35

What are the polymers of Lipids (C+H)?

Answer 35

Fatty Acids & Triglycerides

Question 36

What is the function of an organ?

Answer 36

Different cells and tissues in the organ work together to perform major functions

Question 37

What are Biological Molecules made out of?

Answer 37

Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus, Sulfur