Biology Unit 3: Test Review (10/29, 10/30)

Question 1

Which of the following is an ion?

Accepted Answer

H+

Question 2

Proteins are different from carbohydrates because they have ____, carbon, oxygen, and hydrogen.

Accepted Answer

nitrogen

Question 3

Which macromolecule is not soluble in water, stores energy, and makes up cell membranes?

Accepted Answer

lipid

Question 4

Which macromolecule contains carbon, hydrogen, oxygen, nitrogen, and phosphorous?

Accepted Answer

nucleic acid

Question 5

Which essential element makes up chlorophyll and is needed for leaf growth?

Accepted Answer

nitrogen (N)

Question 6

Which organic food group is the element nitrogen associated with?

Accepted Answer

proteins and amino acids

Question 7

Which of the following is a compound?

Accepted Answer

CaCl

Question 8

Which macromolecule contains carbon, hydrogen, and oxygen atoms, usually in a ratio of 1:2:1 ?

Accepted Answer

carbohydrate

Question 9

Citric Acid (C3H5O(COOH)3) is

Accepted Answer

organic

Question 10

Silver Nitrate (AgNO3(s)) is

Accepted Answer

inorganic

Question 11

All organic compounds have the element ______ in their structure.

Accepted Answer

carbon

Question 12

A bag of fertilizer displays the numbers 18-24-12 on the label. What does the 12 represent?

Accepted Answer

K

Question 13

Carbon Dioxide (CO2(g)) is

Accepted Answer

inorganic

Question 14

What are proteins used for?

Accepted Answer

structures and catalysts

Question 15

Laurie's list of organic compounds is correct except for

Accepted Answer

baking soda and water

Question 16

How many amino acids are found in nature?

Accepted Answer

20

Question 17

Cellulose is an example of a monosaccharide.

Accepted Answer

false

Question 18

DNA and RNA are both examples of ...

Accepted Answer

nucleic acids

Question 19

A bag of fertilizer displays the numbers 18-0-1 on the label. What does the 0 represent?

Accepted Answer

P

Question 20

What is the chemical process by which disaccharides are made?

Accepted Answer

dehydration synthesis

Question 21

Which of the following is used to store genetic info?

Accepted Answer

nucleic acid

Question 22

What kind of bond forms between metals and non-metals?

Accepted Answer

ionic

Question 23

Carbon is the least versatile element on Earth.

Accepted Answer

false

Question 24

What is the symbol for potassium?

Accepted Answer

K

Question 25

What is the monomer of a nucleic acid?

Accepted Answer

nucleotide

Question 26

Water _________________ as it freezes.

Accepted Answer

expands

Question 27

What type of chemical bond occurs between carbon and other elements in macromolecules?

Accepted Answer

covalent bond

Question 28

Oils belong to a group of organic compounds called

Accepted Answer

lipids

Question 29

When elements share electrons, a(n) __________ bond is formed.

Accepted Answer

covalent

Question 30

Using the description in the picture, what is it?

Accepted Answer

amino acid

Question 31

Glucose is a

Accepted Answer

carbohydrate

Question 32

What is the function of a nucleic acid?

Accepted Answer

store and transmit genetic information

Question 33

A store has canola oil, peanut oil, and soybean oil. These all come from

Accepted Answer

lipids

Question 34

What is the monomer of a lipid?

Accepted Answer

fatty acid

Question 35

Nucleotides consist of a phosphate group, a nitrogenous base, and a ...

Accepted Answer

5-carbon sugar

Question 36

A properly watered corn plant shows yellowing of its upper leaves. What is the problem?

Accepted Answer

soil is lacking some essential elements

Question 37

Amino acids contain an amino group and a _____________ group.

Accepted Answer

carboxyl

Question 38

Lipids that contain unsaturated fatty acids tend to be liquid at room temperature.

Accepted Answer

true

Question 39

Monomers join together to form ...

Accepted Answer

polymers

Question 40

Is water polar or nonpolar?

Accepted Answer

polar

Question 41

What does organic mean (in terms of chemistry)?

Accepted Answer

contains carbon

Question 42

Rubbing Alcohol (C3H8O(L)) is

Accepted Answer

organic

Question 43

What are special characteristics of water?

Accepted Answer

all of these

Question 44

Which element is found in all organic compounds?

Accepted Answer

carbon

Question 45

Which macromolecule is used as a main source of energy and sometimes for structural purposes?

Accepted Answer

carbohydrate

Question 46

What are carbohydrates used for?

Accepted Answer

energy

Question 47

What is the function of protein?

Accepted Answer

all answers are correct

Question 48

How are large sugars split?

Accepted Answer

hydrolysis

Question 49

A substance with a pH of 6.2 would be considered

Accepted Answer

acidic

Question 50

Which of the following is a chemical reaction?

Accepted Answer

iron rusting

Question 51

What elements are found in proteins?

Accepted Answer

CHONPS

Question 52

Amino acids covalently bond together to create ...

Accepted Answer

polypeptides

Biology Unit 3: Test Review (10/29, 10/30)

Questions 52

Biology Unit 3: Test Review (10/29, 10/30)

Questions 52