1st STT - Gen bio : Module 5

Question 1

The components of the ribosome are distinguished by?

Answer 1

Size

Question 2

What is a centrosome?

Answer 2

An organelle made up of two centrioles and microtubules

Question 3

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

Answer 3

To make new bonds

Question 4

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

Answer 4

I and II

Question 5

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

Answer 5

Requires less energy to perform specific function.

Question 6

A centriole is an organelle that is ___.

Answer 6

composed of microtubules and important for organizing spindle fibers.

Question 7

Where can you find ribosomes?

Answer 7

both prokaryotic and eukaryotic

Question 8

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.

Answer 8

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

Question 9

Chromosome movement in mitosis and meiosis is regulated by ___.

Answer 9

microtubules

Question 10

Is compartmentalizing all organelles beneficial to the cell?

Answer 10

no

Question 11

strands of RNA that contains instructions on
how to create proteins

Answer 11

Messenger

Question 12

region near the nucleus

Answer 12

CENTROSOME

Question 13

floating or attached to ER

Answer 13

Ribosomes

Question 14

an overlapping array of actin/myosin
proteins

Answer 14

Contractile Ring

Question 15

protein strands in centrioles

Answer 15

Microtubules

Question 16

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

Answer 16

F - Eukaryotes

Question 17

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

Underlined Word: Cytoplasm

Answer 17

True

Question 18

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

Underlined Word: Centromere

Answer 18

F - Centrosome

Question 19

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

Underlined Word: Centrioles

Answer 19

True

Question 20

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

Answer 20

F - Cytoskeleton