A blood pressure reading of 120/80 would:

Be considered normal for a young adult

Which of the following occurs when environmental temperature is lower than body temperature?

Decreased muscular activity to maintain heat

Blood pressure is the measurement of the:

Pressure exerted by the blood on the wall of a blood vessel

A function of insulin is to:

Increase the uptake of glucose by its target tissues

When blood sugar levels decrease:

Insulin secretion increases, glucagon secretion decreases

Homeostasis is defined as:

Maintenance of relatively constant environment in the body

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Introduction to biology: test your knowledge

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A short taster Quiz for biology.

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Questions 10

Answers

1
Which of the following hormones do not influence blood pressure:
Atrial natriuretic factor
Growth hormone
Anti-diuretic hormone (ADH)
Adrenaline
2
A blood pressure reading of 120/80 would:
Indicate a diastolic pressure of 120 mmHg
Be considered normal for a young adult
Indicate a systolic pressure of 80 mmHg
Have Korotkoff sounds at pressure above 120 mmHg
3
The portion of the brain that regulates body temperature is the:
Pons
Cerebral cortex
Medulla oblongata
Hypothalamus
4
Which of the following occurs when environmental temperature is lower than body temperature?
Vasoconstriction of the blood vessels
Increased heat loss through the skin
Decreased muscular activity to maintain heat
Sweating
5
Blood pressure is the measurement of the:
Product of stroke volume times heart rate
Pressure exerted by the blood on the wall of a blood vessel
Number of layers of blood in laminar flow models
Viscosity of the blood and resistance to blood flow
6
If an increase in body temperature were detected, one would probably observe:
Vasodilation of peripheral blood vessels
All of the above would occur
Increased sweat production
Increased heat loss through the skin
7
A function of insulin is to:
Increase glycogen breakdown in liver and skeletal muscles
Decrease the uptake of amino acids by its target tissues
Increase the uptake of glucose by its target tissues
Increase the breakdown of fats
8
When there is a drop in blood pressure, the body reacts immediately by:
CNS ischaemic mechanism
Chemoreceptor mechanism
Stress-relaxation mechanism
Baroreceptor mechanism
9
When blood sugar levels decrease:
Insulin and glucagon secretion increase
Insulin secretion decreases, glucagon secretion increases
Insulin and glucagon secretion decrease
Insulin secretion increases, glucagon secretion decreases
10
Homeostasis is defined as:
Production of energy by cells
Amplification of deviation from the normal range
Maintenance of relatively constant environment in the body
Combination of growth, self-repair and energy release

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