Cell physiology 1 - Test for Massage Therapist

1.There are three main parts of a cell ; _____,_________,_________

A) Plasma membrane, mitochondria, nucleus

B) Cytoplasm, ribosome, nucleolus

C) Plasma membrane, cytoplasm, nucleus

D) Cytosol, chromosome, organelles

… Answer is C)

2. The ______________ forms the cell’s flexible outer surface, separating the cell’s internal environment from the external environment.

A) Cytoplasm

B) Organelles

C) Nucleus

D) Plasma membrane

… Answer is D)

3. Which following one is not example of organelles?

A) Cytosol

B) Ribosome

C) Gogi complex

D) Mitochondria

… Answer is A)
cytosol is the fluid portion of cytoplasm, contains water, dissolved solutes, and suspended particles.

4. __________ is a long DNA molecule with part or all of the genetic material of an organism.

A) Nucleus

B) Chromatin

C) Chromosome

D) Genes

… Answer is C)

5. Which of the following can be found in the cell membrane?

A) Phospholipids

B) Cholesterol

C) protein

D) All of the above

… Answer is D)

6. Which of the following statement is not true about the plasma membrane?

A) The structure of membrane is the lipid bilayer.

B) The bilayer have both polar and nonpolar parts

C) The nonpolar tails are hydrophilic.

D) The head of the phospholipid molecule is attracted to water.

… Answer is C)
The polar head ; hydrophilic, the nonpolar tail ; hydrophobic

7. Which of the following is the active process to transport across the plasma membrane?

A) Na -K pump

B) Osmosis

C) Diffusion

D) Channel-mediated facilitated diffusion

… Answer is A)
active transport needs energy to move solutes across the membrane against a concentration gradient.

8. Which of the following statement is not correct about Osmosis?

A) Osmosis occurs only when a membrane is permeable to water.

B) Water moves from an area of lower water concentration to an area of higher water concentration.

C) It is a passive process.

D) It is type of diffusion in which there is net movement of a solvent.

… Answer is B)
Water moves from an area of higher water concentration to an area of lower water concentration.

9. ______________ ; the concentration of solutes that cannot cross the plasma membrane are the same on both sides of the membrane in this solution

A) Hypotonic solution

B) 0.9% NaCl solution

C) 2% NaCl solution

D) Half saline solution(0.45 NaCl solution)

… Answer is B)
0.9% NaCl solution called a normal saline solution, is isotonic for RBCs.

10. Transport in vesicles is an active process.

A) YES

B) NO

… Answer is A)
endocytosis and exocytosis require energy supplied by ATP. Thus, transport in vesicles in an active process.