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Cellular Membranes Online Exam Quiz

Important questions about Cellular Membranes. Cellular Membranes MCQ questions with answers. Cellular Membranes exam questions and answers for students and interviews.

The parts in the figure are a)__________, b)_____________, c)___________, d)____________.

Options

A : a. dendrites, soma, myelin sheath, nodes of ranvier

B : b. dendrites, soma, cell body, axon hillock, myelin sheath

C : c. soma, axon hillock, myelin sheath, dendrites

D : d. soma, axon hillock, axon, dendrites

One of the main functions of plasma membranes is to enclose the contents of _____________

Options

A : a. cell

B : b. organism

C : c. bones

D : d. tissue

Cytosol is the same as cytoplasm.

Options

A : a. True

B : b. False

C : c. May be True or False

D : d. Can't say

Which of the following is allowed in context with a plasma membrane?

Options

A : a. Inversion

B : b. Transportation

C : c. Transversion

D : d. Transformation

Which type of molecules are involved in responding to external signals received by the cell?

Options

A : a. Enzymes

B : b. Nucleic acids

C : c. Genes

D : d. Receptors

The specific molecules that bind to receptors are _____________

Options

A : a. Ligands

B : b. Co-enzymes

C : c. Substrates

D : d. Enzymes

Energy transduction is the underlying process of which of the following?

Options

A : a. DNA

B : b. Transcription

C : c. Translation

D : d. Photosynthesis

The first insights into the chemical nature of plasma membranes date back to __________

Options

A : a. 1700

B : b. 1790

C : c. 1800

D : d. 1890

Which material was used by Overton in his experiments to conclude the lipid nature of plasma membrane?

Options

A : a. bacteria

B : b. yeast

C : c. plant root hair

D : d. animal root hair

The fluid mosaic model was proposed in the year __________

Options

A : a. 1942

B : b. 1972

C : c. 2002

D : d. 1872

According to the fluid mosaic model, the membrane is _____________

Options

A : a. rigid

B : b. discontinuous

C : c. sheet-like

D : d. fluid-like

Fluidity and viscosity are the same.

Options

A : a. True

B : b. False

C : c. May be True or False

D : d. Can't say

Which of the following attributes of the membrane is most affected at the transition temperature?

Options

A : a. size

B : b. fluidity

C : c. internal composition

D : d. internal environment

The ___________ the degree of unsaturation of the fatty acids of the bilayer, the ___________ the temperature before the bilayer gels.

Options

A : a. greater, lower

B : b. greater, more

C : c. lesser, higher

D : d. None of the mentioned

Which of the following molecules affects the mobility of fatty acyl chains in the plasma membrane?

Options

A : a. starch

B : b. glycogen

C : c. cholesterol

D : d. carbohydrates

Which of the following occurs in the membrane, when the temperature is lowered?

Options

A : a. denaturation

B : b. desaturation

C : c. saccharification

D : d. glycolysis

Lipid rafts are patches of cholesterol and ________________

Options

A : a. carbohydrates

B : b. amino acids

C : c. lipids

D : d. sphingolipids

Cell fusion can be performed on two cells from different species.

Options

A : a. True

B : b. False

C : c. May be True or False

D : d. Can't say

In the experiments to demonstrate the mobility of membrane proteins, which cells were fused with human cells?

Options

A : a. mouse cells

B : b. drosophila cells

C : c. tumor cells

D : d. bacterial cells

Which phenomena are made use of in the technique FRAP?

Options

A : a. electrostatic

B : b. photothermal

C : c. hybridization

D : d. fluorescence

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