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Biochemistry Vocabulary Review

Total questions: 18

Worksheet time: 11mins

Name
Class
Date
1.

An enzyme is a

a)

reactant that slows down a reaction

b)

biological catalyst that speeds up a reaction

c)

solvent that speeds up a reaction

d)

really cool jigsaw piece

2.

Kai is conducting an experiment in the chemistry lab. He adds a compound to water and notices that the pH of the solution is higher than 7. What type of compound is Kai likely using?

a)

acid

b)

base

c)

ion

d)

polymer

3.

The reactant that binds to the enzyme is a(n)

a)

different enzyme

b)

catalyst

c)

substrate

d)

active site

4.

Luna is preparing for her biology exam and she needs to identify the compound made up of carbon, hydrogen, and oxygen atoms that serves as a major source of energy for the human body. What should she focus on?

a)

Carbohydrate

b)

Protein

c)

Lipid

d)

Nucleic Acid

5.

substance that speeds up the rate of a chemical reaction

a)

catalyst

b)

enzyme

c)

Van Der Waals Force

d)

substrate

6.

material composed of two or more elements or compounds that are physically mixed together but not chemically combined

a)

compound

b)

element

c)

mixture

d)

atom

7.

Evelyn is conducting an experiment in her chemistry class where she observes a process that changes one set of chemicals into another set of chemicals. What is this process called?

a)

physical reaction

b)

chemical reaction

c)

metallurgic reaction

d)

nuclear reaction

8.

pH is a scale that determines how acidic or basic a substance is by

a)

measuring the the number of H+

b)

measuring the the number of H-

c)

measuring the the number of OH-

d)

measuring the the number of pH-

9.

Aria is conducting an experiment in her biology class to understand how certain substances help maintain the pH of a solution in a neutral range. What is she likely studying?

a)

acids

b)

bases

c)

buffers

d)

catalysts

10.

This is the structure for which macromolecule?

a)

protein

b)

carbohydrate

c)

nucleic acid

d)

lipid

11.

A nucleotide is made of three elements to make half a ladder rung. They are

a)

a phosphate group, a sugar, and a nitrogenous base

b)

a phosphate group, a sugar, and an amino acid

c)

a phosphate group, a sugar, and a fatty acid

d)

a polypeptide of 3 amino acids

12.

Anika is studying different types of macromolecules in her biology class. She learns that this macromolecule is made of mostly carbon and hydrogen. Fats, oils, and waxes are examples of this type of macromolecule. Which macromolecule is Anika studying?

a)

protein

b)

carbohydrate

c)

lipid

d)

nucleic acid

13.

In a biology class, Daniel was curious about what contains the blueprints to make us and to make the proteins to build and run us. His teacher explained that these blueprints are

a)

protein

b)

carbohydrate

c)

lipid

d)

nucleic acid

14.

Monomers join together to form

a)

polymacromolecules

b)

polymers

c)

amino acids

d)

nucleotides

15.

Evelyn is conducting an experiment in her chemistry class. She adds a substance to water and notices that it forms hydrogen ions (H+) in the solution, resulting in a pH of less than 7. What type of compound is Evelyn working with?

a)

acids

b)

bases

c)

ions

d)

compounds

16.

The _____________dissolves in the _____________to make a __________.

a)

solute, solvent, solution

b)

water, salt , salt water

c)

solvent, solute, solution

d)

solution, solute, solvent

17.

Enzymes ​ (a)   the rate of chemical reactions by ​ (b)   the amount of activation energy.

Choose from the below words
Increase
lowering
18.
What is the term for the amount of energy that needs to be added for a chemical reaction to start?
a)
bond energy
b)
chemical energy
c)
activation energy
d)
reactant energy