Skip to content
MCQtimes.com
GK
Pakistan Studies
Current Affairs
Islamic Studies
English
MCQtimes.com
Toggle Menu
Anatomy and Physiology
Home
/
Anatomy and Physiology
- Page 112
Organisation of the Body
41
Cells and Tissues
129
Measurement, Errors, Data and Unit Conversion
45
Integument
65
Homeostasis
0
Skeleton and Joints
100
Muscles
98
Gastrointestinal System
140
Endocrine System
102
Renal System
117
Cardiovascular System
365
Respiratory System
130
Nervous System
292
Reproductive System
72
The Physics of Waves: Light Waves, Sound Waves and Ultrasound
62
Ionising Radiation
92
Electricity
35
Biomechanics
58
Body Temperature, Energy and Heat Loss
70
Chemistry for Physiology
279
Show/Hide Answers
Cardiovascular System
Which of the following is found in the walls of capillaries?
Endothelial cells and basement membrane
Tunica externa
Tunica media
Smooth muscle
Capillary walls are very thin to facilitate passage of water and solutes. They have only a tunica intima, that is, endothelial cells and a basement membrane.
Author:
rikazzz
Comment
Gastrointestinal System
In terms of the physiology of digestion, to what does the term “hydrolysis” refer? To the:
Use of hydrochloric acid to digest food molecules
Effect that hydronium ions have on the pH of a solution
Generation of hydrogen gas flatus in the large intestine
Production of two molecules from one by a reaction with water
The “hydro-” part of hydrolysis refers to water, while the “-lysis” part refers to the splitting of a large molecule into two smaller parts. The water molecule also splits into H+ and OH- which are attached to the two smaller fragments.
Author:
rikazzz
Comment
Reproductive System
What is a fertilised egg known as?
Ovum
Zygote
Embryo
Blastocyst
The fertilised egg, before it begins to divide, is known as a zygote.
Author:
rikazzz
Comment
Chemistry for Physiology
Pure water contains small but equal amounts of hydronium (H
3
O
+
) ions and hydroxide (OH−) ions. This means that water is:
Acidic
Basic
Acidic and basic
Neither acidic nor basic
When the concentrations of hydronium and hydroxide ions are the same, their effects are cancelled, and the solution is neutral.
Author:
rikazzz
Comment
Skeleton and Joints
What is a distinguishing feature of synovial joints?
There is fluid between the articulating bones.
They are immovable joints.
The articulating bones are held together by tendons.
They involve a “ball and socket” articulation.
The fluid is synovial fluid. Ball and socket joints are synovial, but are only one type of synovial joint.
Author:
rikazzz
Comment
Respiratory System
Which anatomical structures does the “conducting zone” of the lower respiratory tract contain?
Eustachian tube, larynx and trachea
Primary, secondary and tertiary bronchi and bronchioles
Nares, conchae, olfactory mucosa and sinuses
Nasopharynx and larynx
The conducting zone is distal to the trachea and before the alveoli.
Author:
rikazzz
Comment
Endocrine System
Which of the following hormones CANNOT cross the plasma membrane?
Sex hormones
Amino acid-based hormones
Thyroid hormones
Steroids
Amino acid-based hormones are water soluble but not lipid soluble, so cannot cross the plasma membrane.
Author:
rikazzz
Comment
Measurement, Errors, Data and Unit Conversion
A baby’s mass measurement is 3.8 kg ± 0.05 kg. What is the absolute error in the measurement?
± 0.05 ÷ 3.8
± (0.05 ÷ 3.8) × 100%
± 0.05 kg
0.05 kg
By definition, absolute error is half the smallest scale interval (0.1 in this case) above and below the measured value.
Author:
rikazzz
Comment
Nervous System
The following receptors for neurotransmitters may be stimulatory or inhibitory EXCEPT for one of them. Which one?
Nicotinic receptors
Muscarinic receptors
Adrenergic alpha receptors
Adrenergic beta receptors
Nicotinic acetylcholine receptors bind ACh and are always stimulatory.
Author:
rikazzz
Comment
Chemistry for Physiology
A sudden and severe loss of potassium due to diuretic abuse is likely to result in:
Hypothermia
Hyponatremia
Hypokalaemia
Hypoventilation
Kalium means potassium; the prefix “hypo-” means a lack or decrease in.
Author:
rikazzz
Comment
Page navigation
Previous Page
Previous
1
…
110
111
112
113
114
…
230
Next Page
Next
Go to Page
Light
Dark
GK
Pakistan Studies
Current Affairs
Islamic Studies
English