2021 Biochem for Biology

Question 1

The water molecule is referred to as "polar" because

Accepted Answer

The oxygen is more negatively charged than hydrogen

Question 2

What does denaturing mean?

Accepted Answer

To change shape

Question 3

Polypeptides with multiple subunits show what level of structure?

Accepted Answer

quarternary

Question 4

The type of bond where two elements share and electron pair is called

Accepted Answer

Covalent

Question 5

A protein containing subunits is held together. What level of structure is this?

Accepted Answer

Quarternary

Question 6

What type of bond holds amino acids together?

Accepted Answer

peptide bonds

Question 7

What type of reaction creates multiple monomers from one polymer?

Accepted Answer

hydrolysis

Question 8

This is an image of a/an

Accepted Answer

carbohydrate

Question 9

All organic substances contain

Accepted Answer

carbon

Question 10

The thing an enzyme binds to is called the...

Accepted Answer

substrate

Question 11

Where is a product located?

Accepted Answer

After the arrow

Question 12

The sequence of amino acids display what level of protein structure?

Accepted Answer

primary

Question 13

A chemical compound is best described as a

Accepted Answer

Two or more elements combined by bonds

Question 14

Which of the following is true of this image?

Accepted Answer

It is a macromolecule

Question 15

What are bonds made of?

Accepted Answer

valence electrons

Question 16

Which type of macromolecule includes enzymes?

Accepted Answer

Proteins

Question 17

Which of the following is not a subatomic particle?

Accepted Answer

Molecule

Question 18

The most common elements in living organisms can be remembered with the acronym:

Accepted Answer

chnops

Question 19

Which of the following is a carbohydrate polymer?

Accepted Answer

starch, glycogen

Question 20

Which of the following is true of enzymes?

Accepted Answer

They are sensitive to pH., They are sensitive to concentrations of enzymes., They are sensitive to temperature., They are sensitive to substrates.

Question 21

A reaction has water as a product. What type of reaction could this be?

Accepted Answer

dehydration synthesis

Question 22

Which of the following is not true about DNA?

Accepted Answer

It is a protein

Question 23

The monomer shown in the image is

Accepted Answer

An amino acid

Question 24

The water molecules shown are stuck together with

Accepted Answer

Hydrogen Bonds

Question 25

This is an image of a/an

Accepted Answer

Protein

Question 26

Ionic bonds are formed when...

Accepted Answer

An electron is transferred and the resulting charges attract

Question 27

What does 4 represent in the graph?

Accepted Answer

the energy of the products

Question 28

Which of the following has the correct ending?

Accepted Answer

-ase for enzymes

Question 29

The folding of the protein backbone into alpha helixes and beta pleated sheets is what level?

Accepted Answer

Secondary

Question 30

What does 2 represent in the graph?

Accepted Answer

the activation energy of the reaction

Question 31

When the temperature or pH gets too high, what happens to an enzyme?

Accepted Answer

It becomes denatured.

Question 32

The small molecules that make up a polymer are called

Accepted Answer

Monomers

Question 33

The macromolecule shown is a

Accepted Answer

Lipid

Question 34

What types of molecules can dissolve in water?

Accepted Answer

polar

Question 35

The macromolecule shown in the image is made of simple sugars, so it is a

Accepted Answer

Starch

Question 36

What is the difference between the saturated and unsaturated fatty acids shown?

Accepted Answer

Unsaturated has a double bond

Question 37

Something that lowers the activation energy so a reaction can happen faster is called a/an...

Accepted Answer

catalyst

Question 38

Lipids are made of all of the following except...

Accepted Answer

Nitrogen

Question 39

Which of the following is NOT true about an ion? It is an element with...

Accepted Answer

A different number of protons

Question 40

Which macromolecule is used for short term energy?

Accepted Answer

Carbohydrate

Question 41

Oils and waxes are examples of

Accepted Answer

lipids

Question 42

What is the monomer that makes up nucleic acids?

Accepted Answer

Nucleotides

2021 Biochem for Biology

Questions 42

2021 Biochem for Biology

Questions 42