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Essential Biochemistry - Cell And Membrane Transport (Section 2)

1
Which organelle is responsible for packaging and modifying proteins?
Answer
(C)
Golgi apparatus
2
What type of transport is represented by the Na+/K+ pump?
Answer
(C)
Active transport
3
Which statements correctly describe the function of the cell membrane?
Answer
A
C
4
Which of the following are characteristics of the cell membrane?
Answer
A
B
C
5
Which of the following is NOT a function of the cell membrane?
Answer
(C)
To synthesize proteins
6
What is the term for the cellular uptake of liquids?
Answer
(B)
Pinocytosis
7
What is the process by which cells engulf solid particles?
Answer
(B)
Phagocytosis
8
What is the function of lysosomes?
Answer
(B)
Digestion of macromolecules
9
What is the function of the mitochondria?
Answer
(B)
Cellular respiration and energy production
10
Which of the following is a characteristic of active transport?
Answer
A
B
C
11
Which of the following is a characteristic of prokaryotic cells?
Answer
(C)
Smaller size than eukaryotic cells
12
What is the primary role of the cell wall (in cells that have one)?
Answer
(B)
Support and protection
13
What processes require ATP?
Answer
C
D
14
Which organelle is responsible for cellular respiration and energy production?
Answer
(C)
Mitochondria
15
Which type of transport requires a protein to move a substance across the membrane?
Answer
(C)
Facilitated diffusion
16
All of the following statements about the nucleus are true, except:
Answer
(C)
Ribosomal RNA is not synthesized in it
17
What is the role of the peripheral proteins?
Answer
(B)
They are attached to the surface of the cell membrane and often act as enzymes or signaling molecules.
18
What process is used by cells to release large molecules like proteins?
Answer
(B)
Exocytosis
19
What is the main function of the rough endoplasmic reticulum (RER)?
Answer
(B)
Protein synthesis and modification
20
What is the primary role of the cytoskeleton?
Answer
(B)
Structural support and cell shape
21
Golgi apparatus is present in all of the following cells except:
Answer
(A)
RBC
22
Which of the following are involved in cell communication?
Answer
A
C
D
23
What is the main function of the Golgi apparatus?
Answer
(C)
Packaging and modification of proteins and lipids
24
Which of the following is involved in the synthesis of ribosomes?
Answer
(C)
Nucleolus
25
What are the major components of the cell membrane?
Answer
(B)
Lipids and proteins
26
What is the role of the Na+/K+ pump in the cell membrane?
Answer
(A)
To transport sodium ions out of the cell and potassium ions into the cell.
27
Which of the following are involved in protein synthesis?
Answer
A
B
28
What is endocytosis?
Answer
(A)
The movement of a substance into a cell by engulfing it in a vesicle.
29
What is the function of the cell wall?
Answer
(B)
To provide support and protection.
30
What is the function of lysosomes?
Answer
(B)
Digestion of macromolecules
31
Which of the following is a function of the cell membrane?
Answer
(A)
To regulate the passage of a variety of small molecules across it
32
Which molecules can pass through the cell membrane via simple diffusion?
Answer
A
C
33
What is the function of the smooth endoplasmic reticulum?
Answer
(B)
Lipid synthesis and drug detoxification
34
What does the term 'selectively permeable' mean in relation to the cell membrane?
Answer
(B)
It allows only certain substances to pass through.
35
Which of the following is a component of the cytoskeleton?
Answer
(A)
Microtubules
36
What is the primary component of the cell membrane?
Answer
(B)
Lipids
37
Which organelle is responsible for the synthesis of proteins?
Answer
(B)
Ribosomes
38
In which type of transport does a molecule move from an area of high concentration to an area of low concentration without the use of cellular energy?
Answer
(C)
Simple diffusion
39
Which type of transport requires energy?
Answer
(C)
Active transport
40
What is the role of the cell membrane in cellular transport?
Answer
(B)
To regulate the movement of substances
41
Which of the following is a key characteristic of facilitated diffusion?
Answer
(C)
It involves the use of a transport protein.
42
What is the name of the process by which cells release substances to the outside?
Answer
(B)
Exocytosis
43
Which of the following is the process of a cell engulfing a large particle?
Answer
(B)
Phagocytosis
44
Which organelle is involved in the digestion of cellular waste?
Answer
(B)
Lysosomes
45
Where does protein synthesis occur in the cell?
Answer
(B)
Ribosomes
46
What type of transport requires energy?
Answer
(C)
Active transport
47
Which of the following processes involves the engulfing of fluids and small particles?
Answer
(B)
Pinocytosis
48
What is the role of microtubules?
Answer
A
B
C
49
Which of the following is a difference between rough and smooth endoplasmic reticulum?
Answer
A
B
D
50
What is the term for the movement of a molecule from an area of high concentration to an area of low concentration through a protein channel?
Answer
(B)
Facilitated diffusion