Free Printable Protein

1.

Which of the following units are repeatedly joined together to form a strand of DNA?

a)

Amino Acids

b)

Nucleotides

c)

Fatty Acids

d)

Polysaccharides

2.

How does RNA differ from DNA?

a)

RNA contains uracil and deoxyribose

b)

RNA contains ribose and thymine

c)

RNA contains uracil and ribose

d)

RNA contains adenine and ribose

3.

How would the DNA sequence GCTATA be transcribed to mRNA?

a)

GCUAUA

b)

CGATAT

c)

CGAUAU

d)

GCUTUT

4.

The process by which the genetic code of DNA is copied into a strand of RNA is called

a)

translation

b)

transcription

c)

transformation

d)

replication

5.

What is the correct order to make a protein?

a)

Protein, DNA, RNA

b)

RNA, DNA, Protein

c)

DNA, RNA, Protein

d)

Protein, RNA, DNA

6.

What enzyme does transcription use?

a)

DNA polymerase

b)

ligase

c)

RNA polymerase

d)

helicase

7.

Which RNA carries the message?

a)

mRNA

b)

rRNA

c)

tRNA

8.

What part of a nucleotide accounts for the genetic variation between individuals?

a)

phosphate

b)

nitrogenous base

c)

deoxyribose

d)

sugar

9.

Where does transcription take place?

a)

nucleus

b)

cytoplasm

c)

ribosome

10.

In RNA, Uracil pairs with ______.

a)

cytosine

b)

adenine

c)

guanine

d)

thymine

11.

What process is going on in this photo?

a)

Transcription

b)

Translation

c)

Replication

d)

All the above

12.

When the mRNA sequence leave the nucleus, what organelle does it travel to?

a)

mitochondria

b)

smooth ER

c)

ribosome

d)

vacuole

13.

What best explains the interaction between tRNA and mRNA during translation?

a)

anticodons on the mRNA line up with complementary codons on the tRNA

b)

anticodons on the tRNA line up with complementary codons on the mRNA

c)

tRNA attach amino acids to the complementary mRNA sequence

d)

mRNA attach amino acids to the complementary tRNA sequence

14.

What does tRNA "transfer"?

a)

amino acids

b)

nucleic acids

c)

nucleotides

d)

AUG

15.

codons are located on __________

a)

mRNA

b)

tRNA

c)

rRNA

d)

snRNA

16.

anti-codons are located on __________

a)

mRNA

b)

tRNA

c)

rRNA

d)

snRNA

17.

How many nucleotides make up a single codon?

a)

3

b)

5

c)

4

d)

1

18.

What sequence of mRNA always begins a new polypeptide chain?

a)

UAG

b)

AUG

c)

GAU

d)

UGA

19.

How many codons code for phenylalanine?

a)

2

b)

3

c)

4

d)

1

20.

The following codon is translated into which amino acid?

CAU

a)

Methionine

b)

Isoleucine

c)

Histidine

d)

Arginine

21.

A change in the nucleotide sequence

of an organism’s genome

a)

DNA

b)

sequence

c)

mitosis

d)

mutation

22.

What type of mutation involves substituting a DNA base with a different base but still forms the same protein?

a)

point mutation

b)

frameshift mutation

c)

silent mutation

d)

chromosomal mutation

23.

What type of mutation involves adding or deleting bases from the DNA, which results in new codons (a shift in the reading of the codons)?

a)

point mutation

b)

frameshift mutation

c)

silent mutation

d)

chromosomal mutation

24.

What mutation has occurred here?

T-G-A-C-C-A

T-G-A-G-C-A

a)

Substitution

b)

Deletion

c)

Insertion

d)

Frameshift

25.

Which of the following would result in a frameshift mutation?

a)

Insertions only

b)

Substitution only

c)

Deletion only

d)

Insertions and Deletions

26.

DNA molecule segment is : TTACGCAAG

The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.

a)

Substitution

b)

Deletion

c)

Insertion

d)

Inversion

27.

ATTTGAGCC- Original

ATTGAGCC - Mutated

The example above is an example of a

a)

Insertion- Frameshift

b)

Deletion- Substitution

c)

Deletion -Frameshift

d)

All of the above

28.

Why are insertion and deletion (frameshift) mutations so harmful?

a)

They change all of the codons from the mutation on down the line, which changes the amino acid sequence

b)

They insert things that an organism doesn't need.

c)

They often delete things that organisms need.

d)

Insertion and deletions are not any more harmful than substitution mutations.

29.

Enzymes are _____________?

a)

Hydrocarbons

b)

Hormones

c)

Lipids

d)

Proteins

30.

What is an enzyme?

a)

A protein that speeds up chemical reactions

b)

A protein that breaks apart molecules

c)

A protein needed for cell structure

d)

A neurological protein involved in cell signaling

31.

What is activation energy

a)

The energy released after chemical reactions

b)

The energy required to activate an enzyme

c)

Energy absorbed by chemical reactions

32.

An enzyme speeds up a reaction by

a)

lowering the activation energy.

b)

raising the activation energy.

c)

releasing energy.

d)

absorbing energy.

33.

In a chemical reaction, a reactant binds to an enzyme at a region known as the

a)

catalyst.

b)

product.

c)

substrate.

d)

active site.

34.

An enzyme is a catalyst.

a)

True

b)

False

35.

Which letter represents the product?

a)

A

b)

B

c)

C

d)

D

36.

What is the optimal temperature of this enzyme?

a)

60

b)

40

c)

70

d)

30

37.

What is the optimal pH for this enzyme?

a)

6

b)

10

c)

9

d)

7

38.

Changes in pH and temperature can ___________________ an enzyme which causes it to lose its shape and affects its function.

a)

puncture

b)

denature

c)

double

d)

delete

39.

What are the 4 RNA nitrogen bases?

a)

adenine, thymine, cytoplasm, and guanine

b)

adenine, thymine cytosine, and guanine

c)

adenine, uracil, cytoplasm, and guanine

d)

adenine, uracil, cytosine, and guanine

40.

RNA is double-stranded.

a)

true

b)

false

c)

it depends on the type

41.

What is occurring in this picture?

a)

Translation

b)

Replication

c)

Translocation

d)

Transcription

42.

When these bond together, they form a protein

a)

Amino Acids

b)

Peptide Bonds

c)

Ribose

d)

Nucleotides

43.

Letter B...

a)

active site

b)

enzyme

c)

substrate

d)

products

44.

Enzyme A works optimally at pH 7, however, it was removed from its environment and placed into a pH of 1. This is not in its working range. This enzyme is not nonfunctioning how it used too. What do we call the process of an enzyme becoming not functional due to pH change or temp change?

a)

Naturing

b)

Denaturing

c)

Transcription

d)

Translation

45.

Enzyme A works optimally at pH 7, however, it was removed from its environment and placed into a pH of 1. This is not in its working range. This enzyme is not functioning how it used too. Why is the enzyme not functional anymore?

a)

The enzyme shape has altered

b)

The enzyme changed color

c)

The enzyme used all the substrate

d)

The substrate change shape

46.

One morning, Drake ate lots of salt and vinegar chips, which have lots of acid on them. Throughout the day, Drake was feeling stomach pains and his food in his stomach is not being broken down by the enzymes. Why would the enzymes in Drakes stomach not break down the food?

a)

The enzymes have denatured due to the acid in the chips changing the shape of the enzyme.

b)

The enzymes in the stomach have broken the substrate down in to smaller parts

c)

The enzymes in the stomach have built the pieces of substrate in to larger molecules called polymers

d)

The enzymes will function normally not matter the pH change.

47.

Lactase is an enzyme that breaks down a sugar found in dairy products known as lactose. Some people are lactose intolerant, and this can be due to not having enough lactase production. People who are lactose intolerant may not feel well after eating foods containing lactose.

What does lactase do to lactose?

a)

break down the bigger sugar, lactose, into monosaccharides

b)

break down the bigger sugar, lactose, into lipids

c)

Combine the monosaccharides to form the bigger sugar, lactose

d)

Combine the nucleic acids to form the bigger sugar, lactose

48.

Lactase is an enzyme that breaks down a sugar found in dairy products known as lactose. Some people are lactose intolerant, and this can be due to not having enough lactase production. People who are lactose intolerant may not feel well after eating foods containing lactose.

What is the substrate in the scenario?

a)

lactase

b)

lactose

c)

enzyme

d)

protein

49.

An enzyme called glucocerebrosidase breaks down a glycolipid in the body known as glucocerebroside. However, in a genetic disease known as Gaucher’s disease, the body does not produce enough glucocerebrosidase. Therefore glucocerebroside can build up in the body and this can cause serious side effects such as anemia and swelling of the liver and spleen.

Where do instructions to synthesize glucocerebrosidase originate from?

a)

DNA

b)

mRNA

c)

tRNA

d)

Amino Acids

50.

An enzyme called glucocerebrosidase breaks down a glycolipid in the body known as glucocerebroside. However, in a genetic disease known as Gaucher’s disease, the body does not produce enough glucocerebrosidase. Therefore glucocerebroside can build up in the body and this can cause serious side effects such as anemia and swelling of the liver and spleen.

What is the substrate in the scenario?

a)

a glycolipid

b)

a protein

c)

the enzyme

d)

spleen

51.

What is the optimal working condition for Salivary Amylase?

a)

6

b)

1

c)

5

d)

10

e)

9

52.

Which two enzymes share a working pH of 7.5?

a)

Pepsin and Salivary Amylase

b)

Alkaline Phosphatase and Pepsin

c)

Pepsin only works at a pH of 6

d)

Salivary Amylase and Alkaline Phosphatase

Protein

Total questions: 52

Worksheet time: 1hrs 13mins

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