Exam 1

Question 1

Which is FALSE of the Nucleus?
a. Replicates, Synthesizes and Processes all forms of RNA
b. Surrounded by a double set of Membranes with a perinuclear space
c. Has chromatin attached on the outer nuclear membrane
d. Contains the nucleolus

Answer 1

c. Has chromatin attached on the outer nuclear membrane

Question 2

What is the nuclear envelope a continuation of?
a. Cell Membrane
b. Golgi Apparatus
c. Smooth ER
d. Rough ER

Answer 2

d. Rough ER

Question 3

What guards the pores of the Nuclear Envelope?
a. Neuroporins
b. Nucleoporins
c. Nucleosomes
d. Ribosomes

Answer 3

a. Neuroporins

Question 4

How does a nuclear envelope move proteins and protein-RNA complexes?
a. Only into the membrane
b. Only out of the membrane
c. Into and Out of the membrane using vesicles
d. Into and Out of the membrane freely

Answer 4

d. Into and Out of the membrane freely

Question 5

What is chromatin?
a. Complex of DNA involved in the organization/function of DNA, wrapped around 8 nuclear proteins (histones) aka nucleosome.
b. Complex of DNA involved in the organization/function of DNA, wrapped around 6 nuclear proteins (histones) aka nucleosome.
c. Complex of RNA involved in the organization/function of DNA, wrapped around 6 nuclear proteins (histones) aka nucleosome.
d. Complex of RNA involved in the organization/function of DNA, wrapped around 8 nuclear proteins (histones) aka nucleosome.

Answer 5

a. Complex of DNA involved in the organization/function of DNA, wrapped around 8 nuclear proteins (histones) aka nucleosome.

Question 6

Chromatin that is less condensed and actively transcribed, seen in RNA.
a. Heterochromatin
b. Nucleosome
c. Euchromatin
d. Chromatid

Answer 6

c. Euchromatin

Question 7

Chromatin that is HIGHLY condensed and is not usually transcribed
a. Euchromatin
b. Chromatid
c. Heterochromatin
d. Nucleosome

Answer 7

c. Heterochromatin

Question 8

All is true about the Nucleolus, except
a. Not surrounded by a membrane
b. Basophillic, rRNA transcription and ribosome subunit assembly area
c. Will be smaller in cells requiring ribosome production (for proteins)
d. Contains Fibrous and Granular part

Answer 8

c. Will be smaller in cells requiring ribosome production (for proteins)

Question 9

What is false pertaining to the plasma membrane
a. It is a physical barrier
b. It is selectively permeable
c. Has an electrochemical gradient
d. Allows communication intracellularly

Answer 9

d. Allows communication intracellularly

Question 10

What is NOT found in the plasma membrane
a. Cholesterol
b. Phospholipids
c. Integral and Peripheral Proteins
d. Internal and Peripheral Proteins

Answer 10

d. Internal and Peripheral Proteins

Question 11

What is true about the Phospholipid bilayer:
a. One hydrophobic tail, two hydrophilic heads
b. One hydrophobic head, two hydrophilic tails
c. One Hydrophilic Head, Two Hydrophobic tails
d. One hydrophilic head, one hydrophobic tail

Answer 11

c. One Hydrophilic Head, Two Hydrophobic tails

Question 12

What is a glycolipid that contributes to the cell surface coating?
a. Glycocalyx
b. Clycocalyx
c. Cholesterol
d. Glycerol

Answer 12

a. Glycocalyx

Question 13

Which is not a function of cholesterol in the plasma membrane?
a. Membrane stabilization
b. Modulates fluidity
c. Transportation

Answer 13

c. Transportation

Question 14

Membrane proteins play a role in all except:
a. Receiving/ Communication
b. Transportation via channel
c. Transportation via pump
d. Transformation via simple diffusion

Answer 14

d. Transformation via simple diffusion

Question 15

This organelle is made of rRNA and proteins. Creates proteins, can be bound to rough ER or free and can bind together:
a. Vesicle
b. Mitochondria
c. Ribosome
d. Nucleosome

Answer 15

c. Ribosome

Question 16

This organelle is a continuation of the nuclear membrane, has ribosome receptors, can make proteins and lipids, has cisternae.
a. Smooth ER
b. Rough ER
c. Golgi Apparatus
d. Mitochondria

Answer 16

b. Rough ER

Question 17

What is untrue about sER?
a. Synthesize, transport and store lipids and cholesterol, metabolize carbs
b. Contains no cisternae
c. Detoxify toxins, forms vesicles and peroxisomes
d. Sequester and control the release of calcium(skeletal)

Answer 17

b. Contains no cisternae

Question 18

This organelle is responsible for receiving and shipping and is made of smooth membranous cisternae.
a. Smooth ER
b. Mitochondria
c. Golgi apparatus
d. Nucleosome

Answer 18

c. Golgi apparatus

Question 19

Which is correct regarding the golgi apparatus?
a. The receiving side is near the nucleus (cis face) the shipping side is near the plasma membrane (trans face)
b. The receiving side is near the plasma membrane (cis face) the shipping side is near the nucleus (trans face)
c. The receiving side is near the plasma membrane (trans face) the shipping side is near the nucleus (cis face)

Answer 19

a. The receiving side is near the nucleus (cis face) the shipping side is near the plasma membrane (trans face)

Question 20

What is false about Lysosomes?
a. Formed by the golgi apparatus
b. Enzyme filled vacuole for digestion
c. Will digest all a material
d. Can fuse with vesicles for endocytosis

Answer 20

c. Will digest all a material