1st STT - Gen bio : Module 5 Flashcards

1
Q

The components of the ribosome are distinguished by?

A

Size

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2
Q

What is a centrosome?

A

An organelle made up of two centrioles and microtubules

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3
Q

Which of the following is the function of the large subunit?

a. To make RNA
c. To make new bonds
b. To make organelles
d. To protect the ribosome

A

To make new bonds

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4
Q

Which of the following processes is the cytoskeleton involved?
I. Contractile ring formed during cytokinesis
II. Anchoring the extracellular matrix
III. Post-translational modifications of proteins
IV. Post-transcriptional modification of mRNA

A

I and II

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5
Q

Which of the following statements is TRUE about the importance of non-membranous organelles

a. To make RNA
c. To make new bonds
b. To make organelles
d. To protect the ribosome

A

Requires less energy to perform specific function.

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6
Q

A centriole is an organelle that is ___.

A

composed of microtubules and important for organizing spindle fibers.

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7
Q

Where can you find ribosomes?

A

both prokaryotic and eukaryotic

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8
Q

Which of the following is TRUE of non-membrane-bound organelles?

a. Since they are so small, they do not need a plasma membrane
b. Since they do not have fluid interiors, they do not need a plasma membrane
c. Since they are all so similar to each other, they do not need a plasma
membrane
d. All of these are true.

A

Since they do not have fluid interiors, they do not need a plasma membrane

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9
Q

Chromosome movement in mitosis and meiosis is regulated by ___.

A

microtubules

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10
Q

Is compartmentalizing all organelles beneficial to the cell?

A

no

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11
Q

strands of RNA that contains instructions on
how to create proteins

A

Messenger

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12
Q

region near the nucleus

A

CENTROSOME

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13
Q

floating or attached to ER

A

Ribosomes

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14
Q

an overlapping array of actin/myosin
proteins

A

Contractile Ring

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15
Q

protein strands in centrioles

A

Microtubules

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16
Q

Modified True or False: In prokaryotes, the ribosomal protein reaches the nucleus and is
processed to form a large and small ribosome sub unit along with the rRNA strands.

Underlined Word: Prokaryotes

A

F - Eukaryotes

17
Q

Modified True or False: In the cytoplasm, ribosomes can be found floating or attached to the
endoplasmic reticulum.

Underlined Word: Cytoplasm

A

True

18
Q

Modified True or False: Each cell has a pair of centrioles in the centromere, a region near the
nucleus.

Underlined Word: Centromere

A

F - Centrosome

19
Q

Modified True or False: The absence of centrioles causes divisional errors and delays in the
mitotic process.

Underlined Word: Centrioles

A

True

20
Q

Modified True or False: Centrioles are responsible for chromosome movement during cell
division and cytokinesis, in addition to the intracellular movement of organelles.

Underlined Word: Centrioles

A

F - Cytoskeleton