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Worksheets

CA 2 Practice

Total questions: 19

Worksheet time: 49mins

Name
Class
Date
1.

Match the following organelles

a)

Nucleus

1.

Contains the codes & information for protein synthesis

b)

Rough ER

2.

Transports the proteins

c)

Golgi

3.

Packages the proteins

d)

Mitochodrion

4.

Supplies ATP to all organelles

e)

Ribosomes

5.

Synthesizes the proteins

2.

Match the following monomer

a)

amino acids

1.

proteins

b)

fatty acids

2.

lipids

c)

saccharides

3.

carbohydrates

d)

nucleic acids

4.

nucleotides

e)

Carbohydrates

5.

starches & sugars

3.

The ​ (a)   Controls what enters and ​ (b)   the cell.

  • The membrane is called a ​ (c)   because of its consistency and ​ (d)   . Another name for the cell membrane is the ​ (e)   .

Choose from the below words
cell membrane
exits
fluid mosaic
composition
lipid bilayer
4.

During transcription, a sequence of ​ (a)   is copied onto a strand of ​ (b)   so that it can leave the ​ (c)   to find a ​ (d)   .

Choose from the below words
DNA
mRNA
nucleus
ribosome
5.

Create base pairs by matching the correct letters together.

a)

A

1.

T

b)

G

2.

C

c)

T

3.

A

d)

C

4.

G

6.

Match the names of the bases in DNA.

a)

A

1.
Adenine
b)

T

2.
Thymine
c)

G

3.
Guanine
d)

C

4.
Cytosine
7.

Match the names of the bases in RNA.

a)

A

1.
Adenine
b)

U

2.

Uracil

c)

G

3.
Guanine
d)

C

4.
Cytosine
8.
What is the difference between DNA and RNA in terms of bases?
a)
RNA contains uracil in place of thymine
b)
RNA contains uracil in place of adenine
c)
RNA contains uracil in place of guanine
d)
RNA contains uracil in place of  cytosine
9.
The following picture must be
a)
DNA because it's double stranded
b)
RNA because it's single stranded
c)
DNA because it's single stranded
d)
RNA because it's double stranded
10.

Place the steps below in the correct order.

a)

transcription

b)

mRNA travels to the ribosome

c)

translation

d)

new protein is created

1)
2)
3)
4)
11.

What is the role of mRNA in protein synthesis?

a)

it makes the bases that makes up DNA

b)

it converts the code in DNA into a protein

c)

it helps DNA perform replication

d)

it makes the amino acids used in protein synthesis

12.

Determine the correct order of the amino acid sequence to be produced from the DNA template:

3' CCG TCT AAG GTG ACC CTT 5'

a)

Valine - Threonine - Lysine - Serine - Proline - Glutamic Acid

b)

Glycine - Valine - Lysine - Serine - Proline - Alanine

c)

Proline - Serine - Lysine - Threonine - Valine - Stop

d)

Glycine - Arginine - Phenylalanine - Histidine - Tryptophan - Glutamic Acid

13.

Determine the correct amino acid sequence from the mRNA strand:

5' UAU GCC GUA CGC GAA CAC 3'

a)

Tyrosine - Glycine -Valine - Arginine -Glutamic Acid -Histidine

b)

Tyrosine - Alanine -Leucine - Arginine -Glutamic Acid -Histidine

c)

Tyrosine - Alanine -Valine - Arginine -Glutamic Acid -Histidine

d)

Tyrosine - Alanine -Valine - Arginine -Glutamic Acid - Asparagine

14.

Match the following

a)

BB

1.

Homozygous Dominant

b)

Bb

2.

Heterozygous

c)

bb

3.

Homozygous Recessive

15.

If T=Tall & t=short, what percent of offspring will be short.

a)

10%

b)

75%

c)

25%

d)

100%

16.
In a certain species of plant, the color purple (P) is dominant to the color white (p).
According to the Punnett Square, what is the probability of an offspring being white?
a)
25%
b)
0%
c)
100%
d)
50%
17.
B = brown eyes
b = blue eyes
What is true about these two brothers that have brown eyes?
One has genotype BB the other Bb.
a)
they have same phenotype and genotype
b)
they have different genotypes and phenotypes
c)
they have same phenotype but different genotypes
d)
they have same genotype but different phenotypes
18.

In plants, tall (T) is dominant to short (t). Cross two heterozygous tall plants.

What is the probability of producing a short plant?

a)

0%

b)

25%

c)

50%

d)

75%

19.
A homozygous dominant dog with brown fur is crossed with a heterozygous dog with brown fur. What are the percentages of the possible genotypes?
a)
100% BB
b)
75% BB and 25%Bb
c)
50 % BB and 50% Bb
d)
50% Bb and 50% bb