MCQ on Plasma Membrane (Part 1) : Structure of Cell Membrane
(Sample/Model/Practice Questions for CSIR JRF/NET Life Science Examination, ICMR JRF Exam, DBT BET JRF Exam,, GATE BT and XL Exam, ICAR JRF NE Exam, PG Entrance Exam, JAM Exam, GS Biology Exam and Medical Entrance Exam)
(1). The average thickness of plasma membrane of a eukaryotic cell is:
A. 5 to 10 nm
B. 5 to 10 Å
C. 5 to 10 µm
D. 5 to 10 pµm
(2). Which of the following is NOT the function of plasma membrane?
A. Intercellular interactions
B. Responding to external stimuli
C. Energy transduction
D. Assisting in chromosome segregation
(3). Which of the following statement is true regarding the surface tension of plasma membrane?
A. Surface tension of plasma membrane is more than pure lipid structures
B. Surface tension of plasma membrane is less than pure lipid structures
C. Surface tension of plasma membrane and pure lipid structures are same
D. Plasma membrane do not have surface tension
(4). Which of the following statements best describes the chemical composition of plasma membrane?
A. Plasma membrane is composed of two layers—one layer of phospholipids and one layer of proteins.
B. Plasma membrane is composed of equal numbers of phospholipids, proteins, and carbohydrates.
C. Plasma membrane is bilayers of proteins with associated lipids and carbohydrates.
D. Plasma membrane is bilayers of phospholipids with associated proteins and carbohydrates.