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Biochemistry Practice Test

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9th grade Biology Quiz on Biochemistry Practice Test, created by Jessica Dewald on 26/09/2018.
Jessica Dewald
Quiz by Jessica Dewald, updated about 1 month ago
Jessica Dewald
Created by Jessica Dewald over 5 years ago
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Resource summary

Question 1

Question
If you wanted to get a lot of quick energy before a soccer match, which macromolecule would your body need to break down?
Answer
  • Protein
  • Nucleic Acid
  • Carbohydrate
  • Lipid

Question 2

Question
Which type of atom is not found in lipids?
Answer
  • carbon
  • phosphorous
  • hydrogen
  • oxygen

Question 3

Question
Unlike saturated fatty acids, unsaturated fatty acids contain what kind of bonds between carbon atoms?
Answer
  • double
  • single
  • hydrogen
  • covalent

Question 4

Question
Unlike saturated fatty acids, unsaturated fatty acids contain what kind of bonds between carbon atoms?
Answer
  • double
  • single
  • hydrogen
  • covalent

Question 5

Question
Which are examples of carbohydrates?
Answer
  • starch, glucose, fructose
  • cellulose, glycogen, protease
  • cholesterol, wax, carcinogen
  • trypsin, lipase, testosterone

Question 6

Question
What is the function of lipids?
Answer
  • used as cell receptors, enzymes, and transport molecules in the human body
  • used as the main energy source for plants
  • stores hereditary information in bacteria
  • used as insulation for marine arctic animals

Question 7

Question
An enzyme _____ the activation energy needed to achieve a chemical reaction.
Answer
  • stabilizes
  • raises
  • lowers
  • eliminates

Question 8

Question
An appropriate enzyme to catalyze a reaction involving the imaginary substance camelsine would be ___.
Answer
  • camelose
  • cameline
  • camelise
  • camelase

Question 9

Question
Nucleotides consist of which three structures?
Answer
  • amino acids, lipids, and carbohydrates
  • a sugar, a phosphate, and a nitrogen base
  • glycerol, lipid, triglyceride
  • adenine, cytosine, guanine

Question 10

Question
What elements are found in all organic molecules?
Answer
  • carbon and oxygen
  • carbon and nitrogen
  • carbon and hydrogen
  • hydrogen and oxygen

Question 11

Question
The charge of the oxygen atom that makes up water is slightly ___.
Answer
  • positive
  • negative
  • unstable
  • neutral

Question 12

Question
The four organic macromolecules of life include all of the following EXCEPT
Answer
  • proteins
  • nucleic acids
  • carbohydrates
  • salts
  • lipids

Question 13

Question
The breakdown of polymers into monomers occurs through a process known as
Answer
  • dehydration synthesis
  • condensation reaction
  • capillary action
  • hydrolysis

Question 14

Question
When many monomers are linked they make up a [blank_start]polymer[blank_end].
Answer
  • polymer

Question 15

Question
A large polymer is also called a/an
Answer
  • macromolecule
  • enzyme
  • polysaccharide
  • monomer

Question 16

Question
A substance that produces an excess of hydroxide (OH-) ions in water is a [blank_start]base[blank_end].
Answer
  • base

Question 17

Question
Water is classified as a [blank_start]polar[blank_end] molecule because it has a negatively charged oxygen and positively charged hydrogens.
Answer
  • polar

Question 18

Question
Glycogen (storage form of glucose molecules in animals), starch (storage form of glucose in plants), and cellulose (glucose monomer chain that gives rigidity to plants) are all called:
Answer
  • polypeptides
  • polysaccharides
  • monosaccharides
  • polyanna

Question 19

Question
A substance that produces an excess of hydrogen (H+) ions in water is a(n) [blank_start]acid[blank_end].
Answer
  • acid

Question 20

Question
Select all the elements that are found in lipids.
Answer
  • carbon
  • oxygen
  • hydrogen
  • sulur
  • Nitrogen
  • Phosphorous

Question 21

Question
Which macromolecule includes fats, oils, waxes, phospholipids, and steroids.
Answer
  • lipids
  • proteins
  • carbohydrates
  • nucleic acids

Question 22

Question
Plants store glucose in the form of a polysaccharide called cellulose.
Answer
  • True
  • False

Question 23

Question
The term hydrophobic means water fearing.
Answer
  • True
  • False

Question 24

Question
Which of the following sugars is a disaccharide?
Answer
  • glucose
  • sucrose
  • fructose
  • starch

Question 25

Question
The type of bond which holds water molecules to each other is called a [blank_start]hydrogen bond.[blank_end]
Answer
  • hydrogen bond

Question 26

Question
A pH of 7 signifies?
Answer
  • a salt solution
  • an acidic solution
  • a neutral solution
  • a basic solution

Question 27

Question
The polar compound which is the universal solvent and has the unique properties of adhesion, capillary action, and cohesion is [blank_start]water[blank_end].
Answer
  • water

Question 28

Question
Lipids that are solid at room temperature are usually saturated.
Answer
  • True
  • False

Question 29

Question
The process by which monomers link together to form polymers is called the ____.
Answer
  • polarization
  • hydrolysis
  • dehydration synthesis
  • hydrolization

Question 30

Question
Which of the following is NOT a property of water?
Answer
  • nonpolar
  • cohesion
  • hydrogen bonding
  • capillary action
  • adhesion

Question 31

Question
This structure contains which functional group.
Image:
X22 (image/jpeg)
Answer
  • amino
  • alcohol
  • carboxyl
  • hydroxyl

Question 32

Question
Glucose, fructose and galactose are simple sugars also known as:
Answer
  • monosaccharides
  • polysaccharides
  • monopeptides
  • polymers

Question 33

Question
A protein catalyst that speeds up the chemical reaction within an organism
Answer
  • homeostasis
  • protein
  • enzyme
  • metabolism

Question 34

Question
Macromolecules that include sugars, starches, and cellulose
Answer
  • proteins
  • nucleic acids
  • lipids
  • carbohydrates

Question 35

Question
Large complex molecules composed of many smaller molecules called amino acids are
Answer
  • lipids
  • carbohydrates
  • nucleic acids
  • proteins

Question 36

Question
Which of the following is NOT one of the elements found in macromolecules?
Answer
  • nitrogen, N
  • hydrogen, H
  • carbon, C
  • oxygen, O
  • calcium, Ca

Question 37

Question
Which functional group is shown in this compound?
Image:
Ethanol Diagram 300x194 (image/png)
Answer
  • hydrocarbon
  • alcohol
  • carboxyl
  • amino

Question 38

Question
What is the function of protein molecules?
Answer
  • used as cell receptors, enzymes, and transport molecules in the human body
  • Insulation in animals.
  • Quick source of energy
  • Storing genetic information

Question 39

Question
What functional groups are found in this molecule?
Image:
505175058 (image/jpeg)
Answer
  • carboxyl
  • hydroxyl
  • phosphate
  • amino
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