WorksheetsDNA/Cell Membrane
Total questions: 70
Worksheet time: 58mins
Name
Class
Date
1.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
2.
A nucleotide includes...?
a)
pentose sugar
b)
nitrogenous base
c)
phosphate group
d)
all of the above
3.
In DNA, Adenine bonds with ______________.
a)
Guanine
b)
Thymine
c)
Cytosine
d)
Adenine
4.
Guanine bonds with ______________.
a)
Adenine
b)
Guanine
c)
Cytosine
d)
Thymine
5.
Why is DNA important?
a)
it is very small and very complicated
b)
it's in everything
c)
it serves as the blueprint for making proteins
d)
because we eat it every day for energy
6.
Which 2 molecules forms the sides (backbone) of the DNA ladder?
a)
deoxyribose and adenine
b)
deoxyribose and a hydrogen bond
c)
sugar and the nucleus
d)
deoxyribose (sugar) and phosphate
7.
Which shows the correct complementary base pairing for DNA?
a)
C-A, T-G
b)
A-G, C-T
c)
C-G, U-A
d)
T-A, G-C
8.
What does DNA stand for?
a)
Deoxyribonucleic acid
b)
Denitrogenous acid
c)
Deribonucleic acid
d)
Diribonucleic acid
9.
What is responsible for holding the two strands of the DNA double helix together?
a)
hydrogen bonds
b)
alleles
c)
London dispersion forces
d)
deoxyribose sugars
10.
Name this structure
a)
double helix
b)
nucelotide
c)
twisted ladder
d)
hydrogen bond
11.
Which sequence of DNA bases would pair with this partial strand
ATG TGA CAG
ATG TGA CAG
a)
ATG TGA CAG
b)
TAC ACT GTC
c)
GTA AGT GAC
d)
CAT TCA CTG
12.
Which 2 nitrogen bases are purines?
a)
adenine and thymine
b)
thymine and guanine
c)
guanine and adenine
d)
cytosine and thymine
13.
Which 2 nitrogen bases are pyrimidines?
a)
thymine and cytosine
b)
thymine and guanine
c)
adenine and guanine
d)
adenine and thymine
14.
How many hydrogen bonds connect cytosine and guanine in the DNA molecule?
a)
1
b)
2
c)
3
d)
4
15.
How many hydrogen bonds connect adenine and thymine in the DNA molecule?
a)
1
b)
2
c)
3
d)
4
16.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
chloroplast
d)
nucleus
17.
Which amino acid is made from the RNA codon GUA?
a)
Phenylalanine
b)
Leucine
c)
Serine
d)
Valine
18.
Which amino acid is made from the RNA codon ACC?
a)
Tyrosine
b)
Isoleucine
c)
Threonine
d)
Valine
19.
What has DNA?
a)
animals
b)
plants
c)
bacteria
d)
all of the above
20.
The process of making RNA (i.e. mRNA) from DNA is called
a)
Replication
b)
Transcription
c)
Translation
d)
Protein synthesis
21.
What will be the resulting mRNA from this DNA sequence:
GAT-TAC-AGA-TTA-CAT?
GAT-TAC-AGA-TTA-CAT?
a)
CTA-ATG-TCT-AAT-GTA
b)
GAU-UAG-UGA-UUA-GUT
c)
CUA-AUG-UCU-AAU-GUA
d)
CAT-ACA-TAC-ATA-TAG
22.
Which represents the bases of mRNA?
a)
A U C G
b)
A T U G
c)
A T C G
d)
U T C G
23.
A segment of the DNA from a chimpanzee has the sequence: TAC GAA GCA. Which mRNA would be transcribed from this segment of DNA?
a)
GCA TCC TAC
b)
AUG CUU CGU
c)
ATG CTT CGT
d)
GCA UCC UAC
24.
Which of these is part of the description of protein?
a)
a folded chain of amino acids
b)
a folded chain of carbohydrates
c)
a branched chain of fatty acids
d)
a branched chain of nucleic acids
25.
Which is true for all organisms?
a)
Replication is when RNA makes RNA.
b)
Duplication is when RNA makes DNA.
c)
Transcription is when DNA makes DNA.
d)
Translation is when RNA makes proteins.
26.
Which of the following is the sugar found in RNA?
a)
Ribose
b)
Maltose
c)
Deoxyribose
d)
Amylose
27.
Which of the following is a correct difference between RNA and DNA?
a)
RNA is single stranded and DNA is double stranded
b)
RNA is double stranded and DNA is single stranded
c)
DNA uses Uracil and RNA uses Thymine
d)
RNA has deoxyribose and DNA has ribose
28.
What is the correct sequence?
a)
RNA --> DNA --> Protein
b)
Protein --> RNA --> DNA
c)
DNA --> RNA --> Protein
d)
DNA --> Protein --> RNA
29.
What is the RNA sequence for this amino acid chain: LYSINE - GLYCINE - STOP
a)
AAA - CCC - UAA
b)
AAA - GGG - UAA
c)
AAG - AUC - CGA
d)
AAG - GGG - UUU
30.
The role of DNA in your cells is:
a)
the main energy unit for the cell
b)
an energy storing molecule
c)
provide structure to the cell
d)
code for proteins
31.
DNA replication occurs during:
a)
S-Phase
b)
Mitotic Phase
c)
Telophase
d)
Cytokinesis
32.
Transfer RNA contains what two important structures
a)
Protein & a Codon
b)
Amino Acid & a Codon
c)
Amino Acid & an anti-codon
d)
Lipid & an anti-codon
33.
Transcription occurs:
a)
Outside of the Nucleus
b)
Inside of the Nucleus
34.
Translation occurs:
a)
Outside of the Nucleus
b)
Inside of the Nucleus
35.
Translation is performed by:
a)
Ribosomes
b)
Mitochondria
c)
Golgi Bodies
d)
Endoplasmic Reticulum
36.
How many bases are in one codon?
a)
1
b)
2
c)
3
d)
4
37.
If an mRNA codon is AGU, which of the following would be the appropriate tRNA anticodon?
a)
TCA
b)
UGA
c)
AGU
d)
UCA
38.
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.
39.
Most of the cell membrane is made of...
a)
Lipids
b)
Carbs
c)
Proteins
d)
Nucleic acids
40.
How many layers is the lipid bilayer?
a)
1
b)
2
c)
3
d)
4
41.
What does the "fluid mosaic model" mean about the cell membrane?
a)
It can dissolve into fluid.
b)
The cell is mostly made of mosaic molecules.
c)
It looks like a flexible pattern.
d)
Somebody else should name these things.
42.
A can of air freshener is sprayed in the opposite side of the room. Ten minutes later you start to smell the scent. This is an example of
a)
diffusion
b)
active transport
c)
endocytosis
d)
osmosis
43.
A cell will __________________ in a hypotonic solution.
a)
swell and perhaps burst (lyse)
b)
shrink
c)
the size of the cell will not change
d)
the size of the cell will change from large to small and from small to large
44.
A cell will _____________________ in a hypertonic solution.
a)
swell
b)
shrink
c)
will not change
d)
will explode
45.
The movement of water across a selectively permeable membrane without the use of any energy is called
a)
endocytosis
b)
diffusion
c)
active transport
d)
osmosis
46.
The picture is an example of _________________.
a)
osmosis
b)
isotonic
c)
diffusion
d)
active transport
47.
Two examples of passive transport are
a)
Earth and Sun
b)
Diffusion and Osmosis
c)
Energy and Wind
d)
None of the above
48.
When both inside and outside of a cell have the same amount of water it is said that the cell has reached a state of
a)
Osmosis
b)
Diffusion
c)
Equilibrium
49.
A person's tongue cells after finishing eating a salty French fry would...
a)
get smaller
b)
get bigger
c)
remain the same
50.
A person should never drink salty water because their cells would
a)
shrink
b)
expand
51.
A person would never have pure water put into their veins in a hospital because their cells would...
a)
Shrink/Dehydrate
b)
Expand
52.
The movement of molecules against a concentration gradient
a)
simple diffusion
b)
facilitated diffusion
c)
active transport
d)
osmosis
53.
The picture is an example of...
a)
active tranport
b)
passive transport
c)
diffusion
d)
osmosis
54.
Which statement best describes the cell membrane?
a)
The protective outer layer that controls what enters and leaves the cell.
b)
Stores information on DNA molecules / Directs and controls the activities of the cell.
c)
A folded membrane that moves materials around inside cells / Also acts as the site of manufacturing materials needed by the cell.
d)
The smallest organelle with a huge job / Makes proteins, which are the building blocks of the body.
55.
Hydrophilic portion of cell membrane?
a)
A
b)
C
c)
D
d)
E
56.
Hydrophobic region of the cell membrane?
a)
E
b)
B
c)
C
d)
A
57.
What forms the channels and pumps in the phospholipid bilayer?
a)
Carbohydrates
b)
Proteins
c)
Hydrophilic heads
d)
Lipids
58.
Cell membrane is made up of
a)
Polar heads, non-polar tails
b)
Non-polar heads, polar tails
c)
Polar heads, polar tails
d)
Non-polar heads, non-polar tails
59.
Large molecules are released by cell by
a)
Endocytosis
b)
Exocytosis
c)
Passive transport
d)
Phagocytosis
60.
Which type of Passive Transport is being represented in this picture?
a)
Passive Diffusion
b)
Simple Diffusion
c)
Active Diffusion
d)
Facilitated Diffusion
61.
When particles move out of a cell through facilitated diffusion, the cell ____________.
a)
Gains energy
b)
Uses energy
c)
Releases energy
d)
Does not use energy
62.
Large molecules, such as glucose, can easily pass through the cell membrane without any help...
a)
True- they pass right through
b)
False- they need a protein channel
63.
Passive transport requires no
a)
concentration gradients
b)
osmosis
c)
motion
d)
energy
64.
Osmosis is the diffusion of __________.
a)
water
b)
glucose
c)
air
d)
passive transport
65.
How is diffusion different from this process?
a)
Diffusion takes place due to osmotic pressure.
b)
Diffusion requires cellular energy for the transfer of molecules.
c)
Diffusion requires protein channels as a passage-way for particles
d)
Diffusion transfers particles from an area of high to low concentration.
66.
Describe the movement of molecules in the illustration.
a)
Molecules are moving from a lower concentration to a higher concentration.
b)
Molecules are moving from a lower concentration to a higher concentration.
c)
Molecules are moving from a higher concentration to a lower concentration and then from a lower to higher concentration.
d)
Molecules are moving from a lower concentration to a higher concentration and then from a higher concentration to a lower concentration.
67.
The cellular process in which materials are moved across a membrane from an area of low concentration to an area of high concentration is called
a)
Osmosis
b)
Simple Diffusion
c)
Active Transport
d)
Passive Transport
69.
In passive transport, the concentration gradient goes from..
a)
Low to low
b)
High to low
c)
Low to high
d)
High to low
69.
In passive transport, the concentration gradient goes from..
a)
Low to low
b)
High to low
c)
Low to high
d)
High to low
70.
Which of the following CANNOT pass through the cell membrane?
a)
Ions
b)
Hydrophobic molecules
c)
Small particles
d)
Don't pick this one
100 %
