Module 1-2

Question 1

In your own multicellular body, different cells in your body have a division of labor between them. (T/f)

Answer 1

True

Question 2

Compared to bacteria which of the cell types below are not responsible for finding food?
• lymphocyte
• macrophage
• fibroblast
• none of the above
• answers a, b and c

Answer 2

Answers a, b, and C

Question 3

What limits the paramecium from acquiring more complex functions?

Answer 3

The number of biomolecular machines that it can contain within itself

Question 4

The paramecium discussed in class contained an organelle called the contractile vacuole. This is the presumed precursor of the:
• heart
• kidney
• liver
• mouth
• answer not on this list

Answer 4

Kidney

Question 5

What limits an individual cell from becoming more complex?

Answer 5

Individual cells have a limited number of biomoleular machines

Question 6

The contractile vacuole of the paramecium is possibly an evolutionary precursor of the kidney. (T/f)

Answer 6

True

Question 7

In your own multicellular body, different cells in your body have a division of labor. (T/f)

Answer 7

True

Question 8

A single-celled eukaryotic organism:
• has a limited number of bio molecular machines
• must find food, shelter, a mate, and reproduce
• escape from predators
• none of the above
• a, b, and c

Answer 8

A, b, c

Question 9

A cell that is itself an organism must have a minimum of 4 needs presented in the lecture. These are:

Answer 9

Finding a mate to reproduce, finding food, escaping from a predator, finding shelter

Question 10

In your own multicellular body, cells with different functions have different DNA. (T/f)

Answer 10

False

Question 11

In order to examine cells which are smaller than can be detected by the human senses what needs to be used?
A) Patience
B) hypotheses
C) technology
D) a cell trap
F) none of the above

Answer 11

Technology

Question 12

In cell Biology why can limit the progress of science?
A) lymphocyte
B) progress
C) eating
D) bacteria
E) technology

Answer 12

Technology

Question 13

Comparing a single-called eukaryotic organism with a multicellular organism such as yourself identify the major difference from the list below
A) escape from a predator
B) finding a mate
C) division of labor
D) finding its own food
E) nucleus

Answer 13

Division of labor

Question 14

The paramecium swims by way of using a flagella. (T/f)

Answer 14

False; cilia

Question 15

When cancer cells are crowded by surrounding cells, the cancer cells become spherical and they can still go through cell division. (T/f)

Answer 15

True

Question 16

The ancient earth did not contain much oxygen. (T/f)

Answer 16

True

Question 17

List one limitation of the cell culture technique

Answer 17

Not all cells grow in a cell culture

Question 18

A normal cell is ______ and ________ for growth

Answer 18

Mortal, Anchorage dependent

Question 19

DNA in extant prokaryotic cells is circular. (t/f)

Answer 19

True

Question 20

In an extant prokaryotic cell, the outer boundary of life is the capsule. (t/f)

Answer 20

False; the plasma membrane is the outer boundary of life

Question 21

Ribosomes bound to some of the membrane invaginations in the endomembrane theory. (t/f)

Answer 21

True

Question 22

Fluorescence microscopy is a form of light microscopy. (t/f)

Answer 22

True

Question 23

Finish the sentence based on the lectures: the association of ribosomes with _______ invaginations would support the ______ theory

Answer 23

Membrane, endomembrane

Question 24

The cytoskeleton gave rise to the nuclear envelope. (T/f)

Answer 24

False; an infolded plasma membrane attached to a chromosome with an ancestral prokaryote may have led to the formation of the nuclear envelope

Question 25

What limits how big a cell can be?

Answer 25

The surface area to volume ratio

Question 26

Loss of the cell wall was required for the endomembrane system theory. (t/f)

Answer 26

True

Question 27

It is presumed that the peroxisomes evolved in these primitive, proto-eukaryotes to remove oxygen, which was toxic to the primitive cells. (T/f)

Answer 27

True

Question 28

The end of the retraction fiber touching the cell culture plate still contains the cell equivalent of super-glue. (T/f)

Answer 28

True

Question 29

Loss of the cell wall is required for the endosymbiotic theory. (t/f)

Answer 29

True

Question 30

Motility improved the fitness of these early cells because:
A) it allowed them to make a nuclear envelope
B) it caused them to acquire ribosomes
C) it allowed them to move away from predators and towards food
D) two of the above
E) none of the above

Answer 30

it allowed them to move away from predators and towards food

Question 31

The presumed first step in the transition of the primitive, proto- prokaryotic cell into the primitive, proto-eukaryotic cell was the loss of the cell wall. (T/f)

Answer 31

True

Question 32

TEM provides a thin, two-dimensional section of the object being studied. (t/f)

Answer 32

True

Question 33

Why is it important to know the limitations of technology?

Answer 33

If limits are known, advancements can occur

Question 34

The cytoskeleton enabled the primitive cell to become motile. (T/f)

Answer 34

True

Question 35

After a cell is pancaked shaped in a cell culture dish, the order of events that occurs as a cell walks is (pick the best order)
A) lamellipodia, filopodia, cell muscle, retraction fiber
B) cell muscle, cell super-glue, retraction fiber, lamellipodia
C) filopodia, lamellipodia, cell muscle, retraction fiber
D) two of the above
E) none of the above

Answer 35

filopodia, lamellipodia, cell muscle, retraction fiber

Question 36

A cell that is anchorage-dependent for growth will also exhibit contact inhibition. (t/f)

Answer 36

True

Question 37

A cancer cell will be anchorage- dependent for growth and immortal. (t/f)

Answer 37

False

Question 38

A normal cell is anchorage - dependent for growth and mortal. (t/f)

Answer 38

True