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Biology OST Review #2

Total questions: 40

Worksheet time: 38mins

Name
Class
Date
1.
The cell membrane is selectively permeable, which means...
a)
All materials can enter and leave the cell
b)
Certain things can enter while others cannot
c)
The cell manually sorts through all materials
d)
Only certain cells can interact with the cell.
2.

Which of the following is NOT part of the cell membrane?

a)

Lipids

b)

Carbohydrates

c)

Proteins

d)

Nucleic Acids

3.

Which of the following is responsible for getting complex molecules across the cell membrane?

a)

Lipids

b)

Carbohyrates

c)

Proteins

d)

Nucleic Acids

4.
What are the carbohydrates in the cell membrane for?
a)
to form channels and pumps
b)
to help cells identify one another
c)
to make the membrane strong
5.
What forms the channels and pumps in the phospholipid bilayer?
a)
carbohydrates
b)
proteins
c)
hydrophilic heads 
d)
lipids
6.
___________ strengthens and stabilizes the cell membrane.
a)
Carbohydrates 
b)
Proteins 
c)
Phospholipids 
d)
Cholesterol
7.
___________ have 2 functions in the cell membrane.
1.) They act like gatekeepers, only let certain things in. 
2.) Enzyme receptors embedded in the membrane.
a)
Carbohydrates 
b)
Proteins 
c)
Phospholipids 
d)
Cholesterol
8.
Which type of Passive Transport is being represented in this picture?
a)
Passive Diffusion
b)
Simple Diffusion
c)
Active Diffusion
d)
Facilitated Diffusion
9.
What type of solution is this cell in?
a)
Isotonic
b)
Hypertonic
c)
Hypotonic
d)
diffused
10.
What type of solution is this cell in?
a)
Isotonic
b)
Hypertonic
c)
Hypotonic
d)
diffused
11.
What type of solution is this cell in?
a)
Isotonic
b)
Hypertonic
c)
Hypotonic
d)
diffused
12.

What type of transport is seen in this picture?

a)

Passive Transport

b)

Active Transport

13.
Movement of materials from high to low concentration through a protein channel. 
a)
Passive Transport
b)
Active Transport
14.
This picture represents which type of cellular transport?
a)
passive transport
b)
endocytosis
c)
exocytosis
d)
osmosis
15.
If the percentage of DNA is made of 30% Thymine, what is the correct percentage of Guanine?
a)
30
b)
15
c)
20
d)
60
16.
Replicate the following strand of DNA: 
AATCATGGA
a)
AATCATGGA
b)
TTAGTACCT
c)
UUAGUACCU
d)
GGATAUCUA
17.
A process in which DNA has the unique ability to make an exact copy of itself.
a)
Replication
b)
Translation
c)
Transcription
18.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
chloroplast
d)
nucleus
19.
After analyzing a sample of DNA, a scientist recorded the data shown in the table. What percentage of the DNA sample is cytosine?
a)
22%
b)
25%
c)
28%
d)
56%
20.
The process to go from DNA to mRNA is _______
a)
translation
b)
transcription
c)
replication
21.
The process to go from mRNA to a protein is called ____
a)
transcription
b)
rRNA
c)
replication
d)
translation
22.
Choose the nucleotide sequence of the RNA strand that would be complementary to the following strand: 
GTAGTCA
a)
UATUAGA
b)
ACGACTG
c)
CAUCAGU
d)
CATCAGT
23.
What amino acid is represented by the codon UUA?
a)
Phenylalanine
b)
Tyrosine
c)
Leucine
d)
Stop codon
24.

What is the location in the cell for translation?

a)

nucleus

b)

mitochondria in cytoplasm

c)

ribosome in cytoplasm

d)

chloroplast in cytoplasm

25.
What is the three base sequence of mRNA that codes for a single amino acid?
a)
Anticodon
b)
Codon
c)
Protein
26.
What is the location in the cell for transcription?
a)
nucleus
b)
cytoplasm
c)
ribosome
d)
mitochondria
27.

What process is happening in the diagram?

a)

transcription

b)

translation

c)

dna replication

d)

mitosis

28.
How many amino acids are coded for by this sequence of nucleotides:
ATG GGA ACT CCA
a)
4
b)
2
c)
6
d)
12
29.
Which of these nitrogenous bases is NOT in RNA?
a)
Uracil
b)
Thymine
c)
Cytosine
d)
Guanine
30.
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.
31.

Mutations can benefit humans because they can:

a)

Cause illness

b)

Make an organism more suited to live in its environment.

c)

Make organisms live shorter lives

d)

Cause organisms to grow extra limbs.

32.

A mutation is defined as:

a)

A change in the cell's structure

b)

Anything that changes in an embryo

c)

Any change in the physical features of a human

d)

A change in the DNA sequence

33.

A mutation in which only one nucleotide is altered is called a:

a)

Frameshift Mutation

b)

Deletion Mutation

c)

Point Mutation

d)

Insertion Mutation

34.

Another name for a point mutation is:

a)

Substitution

b)

Frameshift

c)

Insertion

d)

Deletion

35.
This type of substitution codes for a stop codon
a)
Missense
b)
Nonsense
c)
Silent
d)
Deletion
36.
A type of substitution in which no  amino acids change is called 
a)
Missense
b)
Nonsense
c)
Silent
d)
Deletion
37.
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
38.
Normal-
GAG-CTC-GAC-AGA
Mutant
GAG CTC-CAC-AGA
a)
no mutation
b)
substitution
c)
insertion
d)
deletion
39.
Are all mutations bad?
a)
Yes
b)
No
40.

Which type of mutation is MOST LIKELY to cause the greatest disruption?

a)

Frameshift

b)

Silent

c)

Point

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