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CytOnline

Total questions: 90

Worksheet time: 1hrs 25mins

Name
Class
Date
1.

What is true of a prokaryotic cell?

a)

they have a nucleus

b)

they are NOT condiered to be alive

c)

they reproduce by binary fission

d)

they do not have a cell wall

2.

What is the smallest unit of life

a)

cell

b)

atom

c)

molecule

d)

organ

3.

1. Which of the following is a characteristic of a prokaryotic cell?

a)

Cellulose cell wall

b)

Mitochondrion

c)

Absence of nucleus

d)

Large subunit (80S) ribosome

4.
What tool do you use to view the cells?
a)
metric ruler
b)
centrifuge
c)
microscope
d)
telescope
5.
Which of the following scientists was the first to observe bacteria under a microscope?
a)
Anton van Leuwenhoek
b)
Matthais Schleiden
c)
Robert Hooke
d)
Theodor Schwann
6.
a sac like organelle that stores water, food, and other matter
a)
vacuole
b)
lysosome
c)
cytoplasm
d)
cell wall
7.

This is the powerhouse of a cell

a)

Cytoplasm

b)

Rough ER

c)

Ribosome

d)

Mitochondria

8.
Directs all cell activities through the DNA located there.
a)
Lysosomes
b)
Nucleus
c)
ribosomes
d)
Mitochondria
9.
______ make protein for the cell.  
a)
Nuclei
b)
Ribosomes
c)
Endoplasmic reticulum
d)
Vacuoles 
10.
This is the outside wall of an animal cell
a)
Smooth ER
b)
Cell Wall
c)
Cell Membrane
d)
Cytoplasm
11.
Why is the nucleus important? 
a)
It give the cell its energy
b)
It stores genetic information
c)
It uses sunlight for food
d)
It makes the proteins
12.
Which of the following is an enzyme filled organelle that breaks down waste in the cell?
a)
lysosomes
b)
chloroplast
c)
mitochondria 
d)
Golgi apparatus 
13.

collects, processes, and packages proteins for the cell

a)

mitochondria

b)

gogli apparatus

c)

smooth ER

d)

rough ER

14.
What is the function of the cell membrane?
a)
Supports and protects the cell
b)
Controls the cell
c)
Controls what enters and leaves the cell
d)
Metabolic reactions occur here
15.
The levels of organization from the simplest to the most complex are
a)
Cells, tissues, organs, organ systems, organism
b)
Organisms, organs, tissues, cells, organ systems
c)
Cells, organs, organ systems, tissues, organism
d)
Tissues, cells, organs, organism
16.

Ribosomes are sites of

a)

Protein synthesis

b)

Chlorophyll synthesis

c)

Carbohydrate synthesis

d)

None of the above

17.

Who stated that "DNA is a genetic material"

a)

Schleiden and Schwann

b)

Sutton and Bovery

c)

Jacob and Monod

d)

Mac Leod and Mc Carty

18.

Staining material of chromosome is

a)

Methyl Isocyanate

b)

Methyl green

c)

Methyl blue

d)

Acetocaramine

19.

The common feature for nucleus, chloroplast and mitochondria is

a)

Cristae

b)

Lamellae

c)

Nucleic acids

d)

Double membranous

20.

Identify semi-autonomous cell organelles

a)

Chloroplast

b)

Mitochondria

c)

Both

d)

None of the above

21.

Eukaryotic cell differs from Prokaryotic cell in having

a)

Well defined nucleus

b)

Endoplasmic Reticulum

c)

Mitochondria

d)

Golgi complex

22.

Cell wall is the secretion product of

a)

Cytoplasm

b)

Tonoplast

c)

Plasmalemma

d)

Nucleoplasm

23.

From which structure is a mesosome derived from?

a)

Plasma Membrane

b)

Plasmid

c)

Ribosome

d)

Cell wall

24.

What are plasmid made of?

a)

Proteins

b)

Polysaccharides

c)

Nucleic acids

d)

Lipids

25.

What are the subunits of prokaryotic ribosomes?

a)

50S, 30S

b)

60S, 40S

c)

70S, 30S

d)

60S, 30S

26.

Which of these structures of the phospholipid bilayer is correctly matched with its property?

a)

Phosphate head – hydrophobic

b)

Phosphate head – hydrophilic

c)

Lipid tail – hydrophilic

d)

Lipid tail – Polar

27.

Which of these statements is not true regarding the cell membrane?

a)

The phosphate heads are polar

b)

It is a phospholipid bilayer

c)

The hydrophilic tails face outwards

d)

It contains integral proteins

28.

Which of these scientists proposed the fluid mosaic model of the cell membrane?

a)

Schleiden and Schwann

b)

Hershey and Chase

c)

Singer and Nicholson

d)

Watson and Crick

29.

Where are the ribosomes attached in rough endoplasmic reticulum?

a)

In the lumen

b)

On the folds towards the nucleus

c)

On the surface

d)

On the folds towards the cell membrane

30.

Which of these structures is non-living?

a)

Nucleus

b)

Cell membrane

c)

Lysosomes

d)

Cell wall

31.

What are the membranes of vacuoles called?

a)

Tonoplast

b)

Leucoplast

c)

Amyloplast

d)

Chromoplast

32.

A group of cells can form ……………………………………………………….. In eukaryotes

a)

Organs

b)

Tissue

c)

Nucleus

d)

DNA

33.

Which of the following sacs are filled with digestive enzymes?

a)

Nucleus

b)

Lysosomes

c)

DNA

d)

Chromosomes

34.

The DNA in eukaryotes, is ……………………………………………… type of DNA.

a)

Circular DNA

b)

Columnar DNA

c)

Linear DNA

d)

Cuboidal DNA

35.
Which of the following is an enzyme filled organelle that breaks down waste in the cell?
a)
lysosomes
b)
chloroplast
c)
mitochondria 
d)
Golgi apparatus 
36.
which of the following transports material within the cell?
a)
Golgi apparatus 
b)
Endoplasmic reticulum
c)
cell wall 
d)
ribosomes
37.
   I provide the cell with protection and controls what comes in and out of the cell.
a)
nucleus
b)
cell wall
c)
cell membrane
d)
mitochondria
38.
I am located in the nucleus – I’m the genetic material of a cell
a)
cytoplasm
b)
membrane
c)
chromosomes/DNA
d)
vacuole
39.
I am found in plant cells. I am rigid, strong & stiff. I give support to the plant cell.  I give the cell it's box shape
a)
cell membrane
b)
cell wall
c)
chlorophyll
d)
mitochondria
40.
jelly-like substance that is located between the cell membrane and the nucleus
a)
mitochondria
b)
chloroplast
c)
vacuole
d)
cytoplasm
41.
Semi-permeable layer around the cell that encloses the contents of the cell
a)
nucleus
b)
cell membrane
c)
cell wall
d)
chloroplast
42.
Contains chlorophyll and is where photosynthesis takes place. Found in plant cells only.
a)
mitochondria
b)
chloroplast
c)
vacuole
d)
cytoplasm
43.
The control center that controls all the functions of the cell
a)
cytoplasm
b)
cell wall
c)
cell membrane
d)
nucleus
44.
Functions in energy production, known as the energy factory of the cell
a)
mitochondria
b)
chloroplast
c)
vacuole
d)
cytoplasm
45.

When a cell stop growing, say due to a shortage of nutrients, this will occur in which phase of cell cycle?

a)

G1

b)

G2

c)

S

d)

D

46.

During _______ the cell grows, its organelles and chromosomes replicate.

a)

cytokinesis

b)

mitosis

c)

interphase

d)

meiosis

47.

During _______ the cell grows, its organelles and chromosomes replicate.

a)

cytokinesis

b)

mitosis

c)

interphase

d)

meiosis

48.

When a cell stop growing, say due to a shortage of nutrients, this will occur in which phase of cell cycle?

a)

G1

b)

G2

c)

S

d)

D

49.

List four phases of mitosis in CORRECT order.

a)

Anaphase, Telophase, Metaphase and Prophase

b)

Metaphase, Telophase, Prophase and Anaphase

c)

Prophase, Anaphase, Telophase and Metaphase

d)

Prophase, Metaphase, Anaphase and Telophase.

50.

In the mitosis, the number of chromosome sets in daughter cells will be

a)

half the number in the parent cell

b)

twice the number in the parent cell.

c)

the same as in parent cell

d)

one fourth the number in the parent cell

51.

It is important that the centromere not divide until the end of metaphase because it

a)

contains the gene that control prophase

b)

holds the replicated DNA molecules together

c)

is connected to nuclear membrane

d)

produces the spindle fibres

52.

How is meiosis related to sexual reproduction?

a)

Meiosis allows the offspring produced during sexual reproduction to grow and develop

b)

Meiosis joins together the gametes during sexual reproduction to produce new offspring.

c)

Meiosis produces the gametes that join to form new offspring during sexual reproduction.

d)

Meiosis produces the somatic cells that join to form new offspring during sexual reproduction

53.

The number of chromosomes in a fertilized egg is..

a)

half as many as in an unfertilized egg

b)

the same as in the sperm

c)

twice the number as in the sperm

d)

twice the number as in skin cell

54.

Sister chromatids remain joined at the centromere in all the stages of meiosis listed below EXCEPT

a)

metaphase I.

b)

metaphase II

c)

anaphase I

d)

anaphase II.

55.

In comparing mitosis and meiosis, which of the following statements is TRUE?

a)

Meiosis I is more like mitosis than is meiosis II.

b)

Both cell divisions produce four cells

c)

Synapsis occurs in both cell divisions.

d)

Meiosis occurs to germ cells, while mitosis occurs to somatic cells.

56.

The process of replication in the S phase of the cell cycle is connected with which of the followings?

a)

Doubling of the number of chromatids

b)

Doubling of the DNA content exclusively.

c)

Doubling of the number of chromosomes.

d)

Doubling of the amount of energy in mitochondria.

57.

Phenotype is

a)

Genetic makeup

b)

Determines genotype

c)

Physical trait of an organism

d)

Represented by two alleles

58.

The term “dominant” means that

a)

both alleles can be expressed in a hybrid.

b)

all members of the F2 generation of a hybrid cross exhibit the dominant phenotype.

c)

one allele can mask the expression of another in a hybrid.

d)

the dominant phenotype is more beneficial than the recessive phenotype

59.

The Law of Independent Assortment is not applicable for

a)

dihybrid inheritance

b)

true breed individuals

c)

heterozygous genotypes.

d)

linked genes.

60.

Two individuals of a rare animal species are mated. One is homozygous for brown eyes and the other is heterozygous. The recessive eye colour is grey. What is the probability that their offspring has brown eyes?

a)

1

b)

½

c)

¼

d)

¾

61.

which of the following are not the characteristic of Mendel's Pea plant?

a)

short life cycle

b)

cheap

c)

can be cross-pollinated

d)

can be self-pollinated

62.

A heterozygous blood group A man marries a heterozygous blood group A woman. What is the probability that their children will be of blood group O

a)

12.5%

b)

25%

c)

50%

d)

75%

63.

Linked genes..

a)

control the same characteristic

b)

are in the same nucleus

c)

are situated on the same chromosome

d)

segregate at mitosis

64.
True or False. 
After a cell goes through cytokinesis, it starts mitosis all over again.
a)
True
b)
False
65.
True or False.
Mitosis is a continuous process.
a)
True
b)
False
66.
What phase is this cell in?
a)
Cytokinesis
b)
Mitosis
c)
Prophase
d)
Metaphase
67.
What phase is this cell in?
a)
Mitosis
b)
Interphase
c)
Prophase
d)
Telophase
68.
What phase is this cell in?
a)
Mitosis
b)
Cytokinesis
c)
Prophase
d)
Telophase
69.
In what phase do the organelles disperse out into the daughter cells, and the cell prepares for cytokinesis?
a)
Prophase
b)
Interphase
c)
Mitosis
d)
Telophase
70.
BONUS:
How long is the whole cell cycle for most animal cells?
a)
2-3 days
b)
24 hours
c)
2-3 hours
d)
23 hours
71.
What can the cell cycle also be called?
a)
Cell growth
b)
DNA Replication
c)
Preparation for Mitosis
d)
Cell Divison
72.
Stem cells are
a)
cells that grow uncontrollably.
b)
undifferentiated and can develop into many types of cells.
c)
cells that never go through cell division.
d)
only found in embryos.
73.
Which type of cell is unspecialized?
a)
skin cell
b)
stem cell
c)
liver cell
d)
muscle cell
74.

A copy a chromosome made during cell division are called:

a)

daughter chromatids

b)

sister chromatids

c)

cell chromatids

d)

sister chromosome

75.

The stage of mitosis where the sister chromatids separate:

a)

prophase

b)

anaphase

c)

telophase

d)

metaphase

76.

During mitosis chromosomes meet in the middle to get divided into two daughter cells in a phase called:

a)

prophase

b)

anaphase

c)

metaphase

d)

telophase

77.

Which is not a phase of the cell cycle?

a)

Interphase

b)

Mitosis

c)

Cytokinesis

d)

Duplication

78.

Apoptosis is

a)

programmed cell death

b)

mysterious cell death

c)

programmed cellular mutation

d)

mysterious cellular mutation

79.
Place these cells in order of mitosis.
a)
A, B, C, D, E
b)
B, E, D, A, C
c)
C, E, A, D, B
d)
B, D, A, E, C
80.
Neuron cells, like the one pictured, rarely replicate. Therefore, we consider them to be in the _____ phase.
a)
G0
b)
G1
c)
S
d)
Delay
81.
At the end of the G1 phase, there's a checkpoint. What is this checkpoint probably checking for?
a)
To see if the cell has grown enough
b)
To see if the DNA was correctly replicated
c)
To make sure the cell does not have cancer
d)
To make sure that the enzymes aren't amalyzed
82.
Sister chromatids are joined together at the ___________.
a)
equator
b)
chromosome
c)
centromere
d)
ends
83.
Why don't cells just stretch when you grow, instead of making copies of themselves?
a)
The muscles in the cells can't stretch that far.
b)
The cell won't be able to bring in food fast enough or get waste out fast enough.
c)
The cell membrane doesn't like the feeling of stretching.
d)
The lysosomes don't want to work so hard.
84.
What is the role of the spindle during mitosis?
a)
it changes the chromatin to chromosome
b)
duplicate the DNA
c)
breaks down the membrane
d)
separates the chromatids.
85.
Why would it be important to replicate DNA before a cell divides in mitosis or meiosis?
a)
In order for genetic information to be transferred into daughter cells.
b)
In order for the cell to be able to increase in size.
c)
In order for the DNA to be contained in the nucleus.
d)
In order for the cell to re-order the DNA sequencing in the new cells.
86.

How many PAIRs of chromosomes do you have?

a)

46

b)

17

c)

23

d)

40

87.

Organelle in eukaryotic cells that is the site of cellular respiration that burns sugar with oxygen to produce energy, carbon dioxide, and water.

a)

Chloroplasts

b)

Vacuoles

c)

Mitochondria

d)

Golgi Apparatus

88.

Which best describes how organisms obtain energy from food?

a)

Food (Glucose) reacts with water to release energy during photosynthesis.

b)

Food (Glucose) reacts with oxygen to release energy (ATP) during cellular respiration.

c)

Food (Glucose) reacts with sunlight to release energy during photosynthesis.

d)

Food (Glucose) reacts with carbon dioxide to release energy during cellular respiration.

89.

How are plant cells and human cells the same?

a)

They can produce their own oxygen.

b)

They can receive nutrients through the cell wall.

c)

They make their own glucose from sunlight during photosynthesis.

d)

They use mitochondria to release energy from glucose during cellular respiration.

90.

Which choices describe DNA replication?

a)

semiconservative

b)

produces two pieces of DNA identical to the original

c)

products are half original and half new

d)

all of the above

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