ADAT ADAT Biomedical Sciences 4

Question 1

Which type of RNA carries amino acids to the ribosome during translation?

Accepted Answer

Transfer RNA (tRNA)

Answer

tRNA molecules recognize codons via their anticodons and deliver the corresponding amino acids.

Question 2

Which type of cartilage forms the articular surfaces of the temporomandibular joint's growth?

Accepted Answer

Fibrocartilage

Answer

The TMJ articular surfaces are lined by fibrocartilage, which resists compressive and shear forces.

Question 3

Insulin promotes glucose uptake in muscle and adipose tissue mainly by recruiting which transporter?

Accepted Answer

GLUT4

Answer

Insulin stimulates translocation of GLUT4 to the cell membrane, increasing glucose entry.

Question 4

A lesion of the facial nerve (CN VII) would most likely impair which function?

Accepted Answer

Facial expression and taste to anterior tongue

Answer

CN VII controls muscles of facial expression and carries taste from the anterior two-thirds of the tongue.

Question 5

Which phase of the cardiac cycle corresponds to ventricular contraction and blood ejection?

Accepted Answer

Systole

Answer

Ventricular systole is the contraction phase during which blood is ejected into the arteries.

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