Question Bank
NEET PG Physiology - English
Duration: 60 · Questions: 50 · Max Marks: 50 · Language: 1
Physiology
1
What is the primary structural model of the cell membrane?
2
Which component of the cell membrane is primarily responsible for its fluidity?
3
What is the main function of carbohydrates in the cell membrane?
4
Which type of protein spans the entire cell membrane?
5
What is the primary role of the cell membrane in cellular function?
6
Which lipid is most abundant in the cell membrane?
7
What structure in the cell membrane aids in signal transduction?
8
Which process does not require energy for transport across the cell membrane?
9
What is the driving force for osmosis across a semipermeable membrane?
10
Which transport mechanism uses a carrier protein but no energy directly?
11
The sodium-potassium pump is an example of which type of transport?
12
How many sodium ions are transported out of the cell per cycle of the Na+/K+ ATPase pump?
13
What is the primary energy source for primary active transport?
14
Which process involves the movement of substances against their concentration gradient using energy from an ion gradient?
15
Which type of transport is responsible for the uptake of glucose in intestinal epithelial cells?
16
What is the primary mechanism for the movement of water across capillary walls?
17
Which Starling force opposes the movement of fluid out of capillaries?
18
What type of transport involves the engulfment of large particles by the cell?
19
Which process is responsible for the release of neurotransmitters into the synaptic cleft?
20
What type of endocytosis is highly specific and involves clathrin-coated pits?
21
Which ion is primarily transported by the Ca++ ATPase pump?
22
What is the main difference between co-transport and counter-transport?
23
What is the primary ion responsible for the resting membrane potential in neurons?
24
What is the typical resting membrane potential of a neuron?
25
Which equation calculates the equilibrium potential for a single ion?
26
What factor does NOT influence the resting membrane potential?
27
Which ion has the highest permeability in a resting neuronal membrane?
28
The Goldman-Hodgkin-Katz equation accounts for the permeability of which ions?
29
What happens to the resting membrane potential if extracellular potassium concentration increases?
30
Which pump maintains the ion gradients responsible for the resting membrane potential?
31
What is the primary ion responsible for the depolarization phase of an action potential?
32
During which phase of the action potential does the membrane potential become more negative than the resting potential?
33
What is the role of voltage-gated potassium channels during an action potential?
34
What is the absolute refractory period?
35
Which ion channel is primarily responsible for the rapid depolarization phase?
36
What happens to the membrane potential during the relative refractory period?
37
How does an action potential propagate along an unmyelinated axon?
38
What is the role of myelin in action potential propagation?
39
Which phase of the action potential is primarily driven by the opening of voltage-gated sodium channels?
40
What is the threshold potential required to initiate an action potential in a neuron?
41
Which type of intercellular junction prevents the passage of molecules between adjacent cells?
42
What is the primary function of gap junctions?
43
Which protein is primarily associated with tight junctions?
44
Desmosomes are most important for what function?
45
Which intercellular junction is found in cardiac muscle cells to allow synchronized contraction?
46
What is the role of adherens junctions in epithelial cells?
47
Which type of junction is most abundant in the intestinal epithelium to prevent leakage?
48
What is the definition of homeostasis?
49
Which type of feedback mechanism is most common in maintaining homeostasis?
50
What is an example of a positive feedback mechanism in the body?