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Physiology Quiz

Physiology Quiz

Physiology is the scientific study of the functions and mechanisms which work within a living system. Let's Start. Physiology is.the branch of biology that deals with the normal functions of living organisms and their parts.

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Quiz Questions And Answers

Physiology means

the branch of biology that deals with the functions of hormones in human body
the branch of biology that deals with the normal functions of living organisms and their parts.
the branch of biology that deals with the digestive system

In skeletal muscle, calcium facilitates contraction by binding to

tropomyosin.
actin.
troponin.

Thick filaments in skeletal muscle are composed of

actin.
myosin.
troponin.

The concept of homeostasis

includes the concept of an error signal.
refers to maintaining physiological functions in a stable condition.
A and B

The internal pacemaker that sets biological rhythms

is located in the brain.
is located in the heart.
does not function in the absence of light or other environmental cues.

ATP

is formed during the hydrolysis of ADP.
is used by cells for the storage of energy.
represents the energy “currency” of all cells.

The site where most of the ATP is generated in a cell is the

mitochondria.
Golgi apparatus
endoplasmic reticulum.

Which of the following metabolic pathways does not require oxygen?

Oxidative phosphorylation.
Glycolysis.
The Krebs cycle.

Glycolysis

yields two moles of ATP for each mole of glucose processed.
may yield two moles of lactate for each mole of glucose processed.
A and B

The reactions of the Krebs cycle

take place in the cytosol of cells
generate ATP directly by substrate phosphorylation.
A and B

Which of the following statements concerning complete oxidation of glucose is true?

Oxygen is used during the Krebs cycle reactions.
Carbon dioxide is released during the Krebs cycle reactions.
None of the above

When glucose is catabolised in the absence of oxygen,

pyruvate formed in glycolysis will generally be converted to lactate
the number of ATP moles formed per mole of glucose will be less than the number formed in the presence of oxygen.
Both a and b

Which of the following statements concerning energy storage in the body is true?

Most is stored in the form of ATP.
Most is stored in the form of fat.
Most is stored in the form of glucose.

For an action potential to occur,

the stimulus must reach or exceed threshold.
Na+ influx must exceed K+ efflux.
Both a and b

During the rising phase of an action potential,

Voltage-gated Na+ channels open.
Voltage-gated K+ channels open.
Voltage-gated Na+ channels close.
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