IB Biology SL Question Preview (ID: 10800)
Questions About Biology SL.
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Where does absorption occur?
a) small intestine
b) large intestine
c) oesophagus
d) trachea
What is the SA node also known as?
a) Pacemaker
b) Atrial ventricular nerve
c) Vagus nerve
d) Tricuspid
Which cells does HIV target?
a) Helper T-cells
b) B lymphocytes
c) Memory cells
d) Phagocytes
What is the best defense against infection?
a) The skin
b) Mucus
c) Acid
d) Cilia
Something that elicits an immune response is called...
a) an antigen
b) an antibody
c) an antibiotic
d) an antiseptic
Which is the correct order?
a) Trachea, bronchus, bronchioles, alveoli
b) Trachea, bronchioles, alveoli, bronchus
c) Alveoli, bronchus, bronchioles, trachea
d) Bronchus, bronchioles, alveoli, trachea
In order to inhale, the external intercostal muscles must...
a) contract
b) relax
c) stretch
d) tighten
Neurons communicate with each other with
a) neurotransmitters
b) chemicals
c) synapsis
d) water
Amino acids are to proteins as glucose is to
a) starch
b) lipids
c) maltose
d) polypeptides
Which cells produce glucagon?
a) alpha cells
b) beta cells
c) delta cells
d) gamma cells
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