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anatomy > chapter 3 review questions > Flashcards

chapter 3 review questions Flashcards

1
Q

Because they are embedded within the membrane, ion channels are examples of ________.

A

Integral Proteins

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2
Q

The diffusion of substances within a solution tends to move those substances ________ their ________ gradient.

A

down; concentration

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3
Q

Ion pumps and phagocytosis are both examples of ________.

A

active transport

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4
Q

Diffusion is to _________ as endocytosis is to ________

A

osmosis; pinocytosis

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5
Q

Cytoplasm is to cytosol as a swimming pool containing chlorine and flotation toys is to _______

A

water

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6
Q

The rough ER has its name due to what associated structures?

A

ribosomes

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7
Q

Which of the following is a function of the rough ER?

A

production of proteins

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8
Q

Which of the following is a feature common to all three components of the cytoskeleton?

A

They are all polymers of protein subunits

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9
Q

Which of the following organelles produce large quantities of ATP when both glucose and oxygen are available to the cell?

A

mitochondria

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10
Q

The nucleus and mitochondria share which of the following features?

A

a double cell membrane

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11
Q

What structure could be found within the nucleolus?

A

ribosomes

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12
Q

Place the following structures in order from least to most complex organization: chromatin, nucleosome, DNA, chromosome

A

DNA, nucleosome, chromatin, chromosome

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13
Q

Which of the following is part of the elongation step of DNA synthesis?

A

Attaching complementary nucleotides to the template strand

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14
Q

Which of the following is not a difference between DNA and RNA?

A

DNA contains alternating sugar- phosphate molecules while RNAs do not contain sugar

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15
Q

Transcription and translation take place in the ______ and ________, respectively

A

nucleus; cytoplasm

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16
Q

How many letters of an RNA molecule, in sequence, does it take to provide the code for a single amino acid?

A

3

17
Q

Which of the following is not made out of RNA?

A

the intron

18
Q

Which of the following phases is characterized by preparation for DNA synthesis?

A

G1

19
Q

A mutation in the gene for a cyclin protein might result in which of the following?

A

a cell with additional genetic material than normal, cancer, a cell with less genetic material than normal

20
Q

What is a primary function of tumor suppressor genes?

A

stop certain cells from dividing

21
Q

Arrange the following terms in order of increasing specialization: oligopotency, pleuripotency, unipotency, multipotency.

A

pleuripotency, multipotency, oligopotency, unipotency

22
Q

Which type of stem cell gives rise to red and white blood cells?

A

hematopietic

23
Q

What multipotent stem cells from children sometimes banked by parents?

A

cells from the umbilical cord and the baby teeth

anatomy (17 decks)

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