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Human Health & Physiology (HL)
Test Description: Test questions for Topics 6 and 11 (Human Health & Physiology) of the IB Biology syllabus.
Instructions: Answer all questions to get your test result.
1) Which process decreases when the human body temperature decreases?
A
Secretion of insulin
B
Secretion of sweat
C
Shivering
D
Blood flow to the internal organs
2) Which organ secretes enzymes that are active at a low pH?
A
pancreas
B
liver
C
mouth
D
stomach
3) Which vessel carries deoxygenated blood?
A
the aorta
B
the pulmonary artery
C
the coronary artery
D
the pulmonary vein
4) Which is NOT true of active immunity?
A
It can be produced by a virus.
B
It can be produced by exposure to a disease-causing organism.
C
It can be transferred via the colostrum.
D
It can be produced artificially.
5) Anti-diuretic hormone has its main effect on what part of the nephron?
A
Bowman's capsule
B
proximal tubule
C
collecting duct
D
loop of Henle
6) Why do antibiotics kill bacteria but not viruses?
A
Viruses are too small to be affected by antibiotics
B
Viruses have a way of blocking antibiotics
C
Viruses do not have a metabolism
D
Antibiotics stimulate the immune system against bacteria but not viruses
7) Where in the kidney does ultrafiltration take place?
A
proximal tubule
B
glomerulus
C
collecting ducts
D
loop of Henle
8) Which type of cell is responsible for secondary immune responses to a pathogen?
A
macrophages
B
cytotoxic T-cells
C
phagocytes
D
memory cells
9) The movement of which ion initiates an action potential?
A
calcium
B
magnesium
C
potassium
D
sodium
10) What is the function of the right ventricle?
A
Pumping blood into the pulmonary artery
B
Pumping blood into the aorta
C
Pumping blood into the coronary artery
D
Pumping blood into the pulmonary vein
*select an answer for all questions
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