Benchmark #1

Question 0

True or false

Enzymes are not reusable

Answer 0

False

Question 1

Explain how enzymes and substrates are like lock and key.

Answer 1

Only one substrate can fit in an enzymes active site

Question 2

What is the job of nucleic acids

Answer 2

To transmit genetic information

Question 3

DNA is an example of this molecule

Answer 3

Nucleic acids

Question 4

What type of bonds are found in saturated fats

Answer 4

Single bonds

Question 5

Are lipids polar or non polar?

Answer 5

Non polar

Question 6

What are the building blocks of nucleic acids

Answer 6

Active site

Question 7

What do we call the area of an enzyme where the substrate joins with the enzyme.

Answer 7

Nucleotides

Question 8

What complex carbohydrate stores energy in the blood of animals?

Answer 8

Glycogen

Question 9

What complex carbohydrate forms the shell (exoskeleton) of insects

Answer 9

Chitin

Question 10

What are the four organic macromolecules that we have studied?

Answer 10

Lipids
Protein
Nucleic acids
Carbohydrates

Question 11

Proteins are a polymer of what monomer?

Answer 11

Amino acids

Question 12

What complex carbonhydrate is used by plants to store energy

Answer 12

Starch

Question 13

This macromolecule is use to form enzymes and hemoglobin?

Answer 13

Protein

Question 14

What do we call the amount of energy needed to start a reaction?

Answer 14

Activation energy

Question 15

What is PH range for acids

Answer 15

0-6.9

Question 16

Which is the strongest base listed below?

pH 8 or pH 11

Answer 16

PH11

Question 17

True or false?

When ice melts, new hydrogen bonds are formed

Answer 17

False.

Melting of hydrogen bonds breaks hydrogen bonds

Question 18

A substance has a pH of 10. To attempt to neutralize it would you add an acid or a base?

Answer 18

An acid acts as a buffer

Question 19

You have made some ice tea from a powder mix. Identify the solute and the solvent.

Answer 19

Solute= iced tea mix

Solvent= watery

Question 20

Monosaccharides, disaccharides and polysaccharides are all….

Answer 20

Carbon hydrates

Question 21

What is the main function is carbonhydrates?

Answer 21

To provide energy

Question 22

What complex carbonhydrate is used as a structural molecule in plants?

Answer 22

Cellulose

Question 23

True or false?

Living organisms must respond to their environment

Answer 23

True

Question 24

True or false? | Living organisms must be able to move

Answer 24

False

Question 25

A pure substance that cannot be broken down into simpler substances is called a(n)...

Answer 25

Element

Question 26

A pure substance made up if two or more elements chemically combined in a fixed proportion is called a(n)..

Answer 26

Compound

Question 27

When water freezes does it become more dense or less dense?

Answer 27

Less dense

Question 28

The attraction between molecules of the same substance is called

Answer 28

Cohesion

Question 29

The attraction between molecules of different sun stances is called

Answer 29

Adhesion

Question 30

What is polarity

Answer 30

The uneven distribution is electrons throughout a molecule, causing partial charges.

Question 31

Biology is the study of

Answer 31

Life

Question 32

This is an "If ... Then" statement.

Answer 32

Hypothesis

Question 33

The solution is a light red color is an example of a(n)...

Answer 33

Observation

Question 34

The scientific method begins with...

Answer 34

Making an observations or identifying a problem.

Question 35

The variable in an experiment that the researcher is studying is the...

Answer 35

Independent, or manipulated, variable

Question 36

The variable in an experiment that we are looking at for a change is the...

Answer 36

Dependent or responding variable

Question 37

The process of keeping a stable internal environment is called...

Answer 37

Homeostasis

Question 38

How many independent variables can be tested in a well designed experiment

Answer 38

One

Question 39

Complete the scentence... | Reactions begin with ____ and end with_____.

Answer 39

Reactants Products

Question 40

Substances that change the speed of a reaction are called...

Answer 40

Enzymes

Question 41

What three factors affect the function is an enzyme?

Answer 41

Temperature pH Amount of enzyme

Question 42

DNA is an example of this macromolecule

Answer 42

Nucleic acids

Question 43

What suffix do many sugars end with?

Answer 43

-ose

Question 44

Organic molecules must contain the element

Answer 44

Carbon

Question 45

Which type of fat is considered to be a "healthy fat?"

Answer 45

Unsaturated fat

Question 46

What macromolecule stores energy for later use and provides insulation in cold climates?

Answer 46

Lipids