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B24 7-9

Total questions: 51

Worksheet time: 54mins

Name
Class
Date
1.

Which of the following is least efficient?

a)

A

b)

B

c)

C

d)

D

2.

CLICK ON IMAGE: Which cell would have the smallest surface area and largest volume?

a)

1um cube (smallest)

b)

2um cube (middle)

c)

4um cube (largest)

3.
Which cells are more efficient at obtaining nutrients?
a)
Small Cells
b)
Medium Size Cells
c)
Large Cells
d)
X-Large Cells
4.

Cells want a _______ Surface/Volume Ratio and a ______VOLUME.

a)

Small; Small

b)

Large; Large

c)

Large; Small

d)

Small; Large

5.
As a cell becomes larger, its
a)
surface area increases faster than its volume.
b)
volume increases faster than its surface area
6.
As a cell’s size increases, its ratio of surface area to volume decreases.
a)
True
b)
False
7.
High Surface area to volume ratio allows cells to do what quickly?
a)
Move materials around inside the cell
b)
Move materials in and out of the cell 
c)
Communicate to other cells
d)
Divide
8.
Microvilli are tiny projections that extend off the cell to increase the Surface Area.  What purpose might that serve? 
a)
Increased absorption
b)
Better communication among cells
c)
Maintain homeostasis 
d)
Decreased oxygen use
9.

For cells to stay alive they require what type of surface area (SA) to volume (V) ratio?

a)
Large SA, Large V
b)
Small SA, Large V
c)
Large SA, Small V
d)
Small SA, Small V
10.

Find the surface area to volume ratio (SA:V)

of the cube. The length, height and width are 10 in.

Formulas:

Surface are: height x width x 6 (has 6 sides)

Volume: height x width x length

Surface to volume ratio: Surface area/ volume

a)

1:1

b)

2:1

c)

0.6 : 1

11.

Two bacterial daughter cells of about the same size with identical DNA may be formed by the process of

a)

budding.

b)

meiosis

c)

binary fission.

d)

vegetative propagation.

12.

A human skin cell contains 46 chromosomes. After the cell completes the process of mitosis and the cell divides, how many chromosomes will each of the new skin cells contain?

a)

2

b)

23

c)

46

d)

92

13.

In mitosis, interphase is the period when the cell begins preparations to divide. Which of the sequences below follows interphase?

a)

prophase metaphase anaphase telophase

b)

metaphase prophase telophase anaphase

c)

anaphase telophase interphase anaphase

d)

telophase anaphase metaphase prophase

14.

An animal cell containing 32 chromosomes divides by meiosis. Each of the resulting daughter cells goes through meiosis. The cells that result each have

a)

4 chromosomes.

b)

8 chromosomes.

c)

16 chromosomes.

d)

32 chromosomes.

15.

What is the final outcome of mitosis?

a)

4 unique haploid cells

b)

2 unique haploid cells

c)

2 identical diploid cells

d)

4 identical diploid cells.

16.

Why is mitosis important in multicellular organisms?

a)

Mitosis is essential for growth and repair.

b)

Mitosis ensures that diploid reproductive cells divide twice, forming four haploid daughter cells.

c)

Mitosis is responsible for passing on genetic variability and beneficial mutations to the next generation.

d)

Mitosis allows tissue growth in multicellular organisms by resulting in the formation of gametes, which then form new cells.

17.

Which of the following events takes place during Synthesis (S) phase? (usually before mitosis meiosis in reproductive organs)

a)

nuclear division

b)

DNA replication

c)

RNA redistribution

d)

cell membrane pinching

18.

The results of meiosis are:

a)

2 diploid identical cells

b)

4 haploid unique cells

c)

46 diploid unique cells

d)

23 haploid identical cells

19.

*Two copies of chromosomes that share similar genes, but may have different alleles are called:

a)

sister chromatids

b)

Chromie Homies

c)

Replicated chromosomes

d)

homologous chromosomes

20.

Germ cells (cells that make egg and sperm cells) go through:

a)

mitosis

b)

meiosis

c)

DNA replication

21.

All of the following create genetic variation EXCEPT..

a)

Mutations

b)

DNA Replication

c)

Law of Independent Assortment

d)

Crossing Over

22.
Which best describes the process shown?
a)
nondisjunction
b)
mitosis
c)
independent assortment
d)
crossing over
23.

Asexual reproduction is associated with what type of cell division?

a)

Mitosis

b)

Meiosis

24.

Some advantages of sexual reproduction include: (select all that apply - there are 3)

a)

genetic variation

b)

improves chances of adapting to the environment

c)

helps species survive catastrophes

d)

it doesn't take as much energy as asexual reproduction

25.

The diagram shows what process?

a)

Mitosis

b)

Meiosis

26.

The diagram shows what process?

a)

Mitosis

b)

Meiosis

27.

True/False: Mitosis produces somatic cells, and meiosis produces gamete cells

a)

True

b)

False

28.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
29.

Which shows the correct complementary DNA strand of ATG?

a)

ATG

b)

TAC

c)

TAG

d)

CGC

30.

What is a monomer of nucleic acids made of 3 parts, a 5-carbon sugar, a phosphate group and a nitogenous base

a)

DNA

b)

Nucleotide

c)

Deoxyribose

d)

RNA

31.

The backbone of a DNA chain is formed by sugar and phosphate groups of each nucleotide.

a)

True

b)

False

32.

Which RNA is responsible for carrying message to the ribosome?

a)

DNA

b)

tRNA

c)

mRNA

d)

rRNA

33.

Which RNA is responsible for assembling amino acid into polypeptide chain (aka making protein)?

a)

DNA

b)

rRNA

c)

mRNA

d)

tRNA

34.
This image shows that DNA Replication is _______.
a)
Conservative
b)
Semiconservative
c)
Dispersive
d)
Spontaneous
35.
One difference between DNA and RNA is that....
a)
Only RNA has the base Uracil
b)
only RNA contains the base Thymine
c)
only RNA contains the base Cytocine
d)
only RNA contained the base Guanine
36.
This nucleic acid is single stranded
a)
DNA
b)
RNA
c)
Both
37.

In a strand of DNA, if it contains 35% of Cytosine, then how much Adenine would be present?

a)

15%

b)
20%
c)
80%
d)
10%
38.
Which sequence of DNA bases would pair with this partial strand
ATG TGA CAG
a)
ATG TGA CAG
b)
TAC ACT GTC
c)
GTA AGT GAC
d)
CAT TCA CTG
39.

What is the base pairing rule in DNA?

a)

A-U, G-C

b)

A-T, G-C

c)

U-T, C-U

d)

A-G, C-T

40.

What is the base pairing rule in RNA?

a)

A-U, G-C

b)

A-T, G-C

c)

U-T, C-U

d)

A-G, C-T

41.

Which RNA is responsible for transferring amino acid?

a)

DNA

b)

rRNA

c)

mRNA

d)

tRNA

42.

True/False: DNA stays in the nucleus where as RNA can leave the nucleus.

a)

True

b)

False

43.
The sides of the DNA “Ladder” are made up of:
a)
Alternating phosphates and sugars
b)
Nitrogen bases
c)
Hydrogen bonds
d)
Protein chains
44.
What determines the code, or information, of a DNA molecule?
a)
the shape (structure) of the nitrogen bases
b)
the order (sequence) of the nitrogen bases
c)
the color of the nitrogen bases
d)
the frequency (number) of nitrogen bases
45.

The strands of DNA are ____________ to each other

a)

parallel

b)

antiparallel

c)

perpendicular

d)

intersect

46.

Where does DNA Replication occur?

a)

in the nucleus

b)

in the ribosome

c)

in the Golgi Bodies

d)

in the mitochondria

47.
The bonds that hold the two strands of DNA together come from...
a)
the attraction of phosphate groups 
b)
strong bonds between  bases and sugars
c)
carbon to carbon bonds in the sugar
d)
weak hydrogen bonds between the bases
48.

What make up the rung of the DNA ladder?

a)

nitrogenous bases

b)

deoxyribose sugar and phosphate

c)

ribose sugar and phosphate

d)

covalent bond

49.
I include the bases guanine, cytosine, and adenine.
a)
DNA
b)
RNA
c)
Both DNA and RNA
50.
In eukaryotic cells, I travel out of the nucleus to a ribosome.
a)
Both DNA and RNA
b)
DNA
c)
RNA
51.

Which of the following combinations is TRUE of the nucleotide composition of a sample of DNA?

a)

A+T=C+G

b)

A+C=T+G

c)

A+U=G+C

d)

A+G=U+C

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