. ©SIRJOEL 2024/2025 ALL RIGHTS RESERVED
Random Test Bank Questions With Correct
Answers 100% Verified.
What are the three main parts of a human body cell? - Answer✔plasma membrane, cytoplasm,
nucleus
The three main components of the lipid bilayer portion of a plasma membrane are -
Answer✔phospholipids, cholesterol, and glycolipids
What are the nonpolar parts of phospholipids? - Answer✔fatty acid tail groups
Which of the following is the transport process by which gases, like O2 and CO2, move through
a membrane? - Answer✔simple diffusion
In this type of transport process, a solute (e.g. glucose) binds to a specific carrier protein on one
side of the membrane. This binding induces a conformational change in the carrier protein that
results in the solute moving down its concentration gradient to the other side of the membrane -
Answer✔facilitated diffusion
SAYS NOTHING ABOUT ATP
What transport process uses the energy stored in a Na+ or H+ concentration gradient to drive
other substances across the membrane against their own concentration gradients? -
Answer✔secondary active transport
what is a pseudopod? - Answer✔extensions of the plasma membrane of the phagocyte that
eventually surround the particle forming a phagosome
Most intravenous solutions are _____ with respect to blood cells? - Answer✔isotonic
The difference in concentration of a specific chemical, like Na+, on the inside and outside of a
plasma membrane is referred as a(n) - Answer✔concentration gradient
The outermost layer of connective tissue surrounding a skeletal muscle is the -
Answer✔epimysium
Contraction of myofibrils within a muscle fiber begins when - Answer✔Contraction of
myofibrils within a muscle fiber begins when
1|Page
, . ©SIRJOEL 2024/2025 ALL RIGHTS RESERVED
Which correctly lists the sequence of structures that action potentials must move through to
excite skeletal muscle contraction? - Answer✔axon of neuron, sarcolemma, T tubule
Which functions as a motor protein in all three types of muscle tissue? - Answer✔myosin
What energizes the myosin head? - Answer✔ATP hydrolysis reaction
Which ATP production would be sufficient to run in place for one minute? - Answer✔anaerobic
cellular respiration
A brief contraction of all muscle fibers in a motor unit in response to a single action potential
moving down the somatic motor neuron is known as - Answer✔twitch contraction
Why would cardiac muscles have longer refractory periods than skeletal muscles? - Answer✔to
preserve the normal rhythm of the heart and prevent fatigue
World class shot-putters will have a higher percentage of ______in their arm muscles. -
Answer✔fast glycolytic fibers
In a neuromuscular junction, the effect of acetylcholine (ACh) binding to receptors on the motor
end plate lasts only briefly due to - Answer✔rapid destruction of ACh in the synaptic cleft by
acetylcholinesterase.
what increases during contraction? - Answer✔zone of overlap
Which division of the peripheral nervous system only innervates the gastrointestinal tract's wall?
- Answer✔enteric nervous system
Which organelle is a common site of protein synthesis in neurons? - Answer✔nissl bodies
When a graded potential summates to threshold at the axon hillock, - Answer✔voltage-gated
Na+ channels open rapidly.
The nervous system can distinguish between a light touch and a heavier touch because -
Answer✔the frequency of impulses sent to sensory centers is changing.
STRONGER THE STIMULUS, FASTER IT IS
A postsynaptic neuron responds to acetylcholine neurotransmitter by creating - Answer✔either
EPSP or IPSP
Which of these allows more potassium to exit the neuron and helps in maintaining the resting
membrane potential? - Answer✔leak channel
What kind of channels open and close in response to physical deformation of receptors? -
Answer✔mechanically gated channel
Chromatolysis refers to - Answer✔break up of Nissl bodies after neural injury.
2|Page
Random Test Bank Questions With Correct
Answers 100% Verified.
What are the three main parts of a human body cell? - Answer✔plasma membrane, cytoplasm,
nucleus
The three main components of the lipid bilayer portion of a plasma membrane are -
Answer✔phospholipids, cholesterol, and glycolipids
What are the nonpolar parts of phospholipids? - Answer✔fatty acid tail groups
Which of the following is the transport process by which gases, like O2 and CO2, move through
a membrane? - Answer✔simple diffusion
In this type of transport process, a solute (e.g. glucose) binds to a specific carrier protein on one
side of the membrane. This binding induces a conformational change in the carrier protein that
results in the solute moving down its concentration gradient to the other side of the membrane -
Answer✔facilitated diffusion
SAYS NOTHING ABOUT ATP
What transport process uses the energy stored in a Na+ or H+ concentration gradient to drive
other substances across the membrane against their own concentration gradients? -
Answer✔secondary active transport
what is a pseudopod? - Answer✔extensions of the plasma membrane of the phagocyte that
eventually surround the particle forming a phagosome
Most intravenous solutions are _____ with respect to blood cells? - Answer✔isotonic
The difference in concentration of a specific chemical, like Na+, on the inside and outside of a
plasma membrane is referred as a(n) - Answer✔concentration gradient
The outermost layer of connective tissue surrounding a skeletal muscle is the -
Answer✔epimysium
Contraction of myofibrils within a muscle fiber begins when - Answer✔Contraction of
myofibrils within a muscle fiber begins when
1|Page
, . ©SIRJOEL 2024/2025 ALL RIGHTS RESERVED
Which correctly lists the sequence of structures that action potentials must move through to
excite skeletal muscle contraction? - Answer✔axon of neuron, sarcolemma, T tubule
Which functions as a motor protein in all three types of muscle tissue? - Answer✔myosin
What energizes the myosin head? - Answer✔ATP hydrolysis reaction
Which ATP production would be sufficient to run in place for one minute? - Answer✔anaerobic
cellular respiration
A brief contraction of all muscle fibers in a motor unit in response to a single action potential
moving down the somatic motor neuron is known as - Answer✔twitch contraction
Why would cardiac muscles have longer refractory periods than skeletal muscles? - Answer✔to
preserve the normal rhythm of the heart and prevent fatigue
World class shot-putters will have a higher percentage of ______in their arm muscles. -
Answer✔fast glycolytic fibers
In a neuromuscular junction, the effect of acetylcholine (ACh) binding to receptors on the motor
end plate lasts only briefly due to - Answer✔rapid destruction of ACh in the synaptic cleft by
acetylcholinesterase.
what increases during contraction? - Answer✔zone of overlap
Which division of the peripheral nervous system only innervates the gastrointestinal tract's wall?
- Answer✔enteric nervous system
Which organelle is a common site of protein synthesis in neurons? - Answer✔nissl bodies
When a graded potential summates to threshold at the axon hillock, - Answer✔voltage-gated
Na+ channels open rapidly.
The nervous system can distinguish between a light touch and a heavier touch because -
Answer✔the frequency of impulses sent to sensory centers is changing.
STRONGER THE STIMULUS, FASTER IT IS
A postsynaptic neuron responds to acetylcholine neurotransmitter by creating - Answer✔either
EPSP or IPSP
Which of these allows more potassium to exit the neuron and helps in maintaining the resting
membrane potential? - Answer✔leak channel
What kind of channels open and close in response to physical deformation of receptors? -
Answer✔mechanically gated channel
Chromatolysis refers to - Answer✔break up of Nissl bodies after neural injury.
2|Page
