Module 1-2 Flashcards

1
Q

In cell biology what can limit the progress of science?

A

Technology

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2
Q

(T/F) the paramecium swim by way of using a flagella

A

False

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3
Q

What limits the paramecium from acquiring more complex functions?

A

Limited number of bio molecular machines

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4
Q

The paramecium discussed in class contained an organelle called the contractile vacuole. This is the presumed precursor of the:

A

Kidney

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5
Q

the _________ of the paramecium is possibly an evolutionarily precursor of the kidney

A

contractile vacuole

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6
Q

Compared to bacteria, which of the cell types below are not responsible for finding food?

A

Lymphocyte
Macrophage
Fibroblast

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7
Q

In order to examine cells which are smaller than can be detected by the human senses, what needs to be used?

A

Technology

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8
Q

Comparing a single-called eukaryotic organism with a multicellular organism such as yourself, identify the major difference

A

Division of labor

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9
Q

A cell that is itself an organism must have a minimum o four needs presented in the lecture. List the four things.

A

Food
Shelter
Mate
Reproduction

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10
Q

A single celled eukaryotic organism: (3 things)

A

Has a limited number of bio molecular machines
Must find food, shelter, a mate, and reproduce
Escape from predators

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11
Q

in your own multicellular body, cells with different functions have _______ DNA

A

the same

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12
Q

in your own multicellular body, different cells in your body have a _______ between them.

A

division of labor

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13
Q

The end of the ________ touching the cell culture plate still contains the cell equivalent of super-glue.

A

retraction fiber

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14
Q

The presumed first step in the transition of the primitive, proto-prokaryotic cell into the primitive, proto-eukaryotic cell was the _______

A

loss of the cell wall.

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15
Q

Motility improved the fitness of these early cells because:

A

It allowed them to move away from predators and towards food.

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16
Q

____ bound to some of the membrane invaginations in the endomembrane theory.

A

Ribosomes

17
Q

Loss of the cell wall is required for the ________

A

endosymbiotic theory.

18
Q

List one limitation of the cell culture technique.

A

Cells lose their function after awhile

19
Q

In an extant prokaryotic cell, the outer boundary of life is _____

A

the cellular membrane

20
Q

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

A

false

21
Q

The ancient earth did not contain much _______

A

oxygen

22
Q

What limits how big a cell can be?

A

The surface area to volume ratio

23
Q

The association of ribosomes with ____________________ would support the endomembrane theory

A

internal membrane/vesicles invaginations

24
Q

After a cell is pancake shaped in a cell culture dish, the order of events that occurs as a cell walks is

A

Filapodia
lamellipodia
cell muscle
retraction fiber

25
Q

DNA in extant prokaryotic cells is _____

A

circular

26
Q

Fluorescence microscopy is a form of __________

A

light microscopy

27
Q

When cancer cells are crowded by surrounding cells, the cancer cells become ________________________

A

spherical and they can still go through cell division.

28
Q

Why is it important to know the limitations of technology?

A

To understand the limitations of science

29
Q

The _____________ enabled the primitive cell to become motile.

A

cytoskeleton

30
Q

______ provides a thin, two-dimensional section of the object being studied

A

TEM

31
Q

It is presumed that the _________ evolved in these primitive, proto-eukaryotes to remove oxygen, which was toxic to the primitive cells.

A

peroxisomes

32
Q

A cell that is anchorage-dependent for growth will also exhibit _________

A

contact inhibition.

33
Q

(T/F) A cancer cell will be anchorage-dependent for growth and immortal

A

false

34
Q

(T/F) A normal cell is anchorage-dependent for growth and mortal.

A

true