The digestion and absorption of fats differs from that of sugars and proteins in

Question

The digestion and absorption of fats differs from that of sugars and proteins in that

a.sugars and proteins must be emulsified before being digested.
b.fats are absorbed into lymphatic capillaries instead of blood capillaries.
c.sugars and proteins interact with bile salts in order for absorption to occur.
d.fats are digested primarily in the stomach.
e.fats do not require digestion before being absorbed.


A genetic defect causes the distal tubules of nephrons to malfunction. Which of the following may NOT occur during urine formation?

A.reabsorption of water and glucose
B.secretion of larger molecules which may be toxic
C.secretion of urea
D.reabsorption of amino acids
E.reabsorption of Hydrogen ion


Which of the following is the correct path urine follows from internal structures to outside the body?

A.renal cortex - urethra - urinary bladder - ureter
B.urinary bladder - renal pelvis - ureter - urethra
C.renal pelvis - ureter - urinary bladder - urethra
D.ureter - renal pelvis - urinary bladder - urethra
E.ureter - urinary bladder - renal pelvis - urethra


Which of the following is the correct pathway of air into the lungs to the site of gas exchange?
Answer
A.nasal cavity-pharynx-larynx-trachea-bronchi-bronchioles-alveoli
B.bronchi-pharynx-larynx-trachea-nasal cavity-bronchioles-alveoli
C.bronchi-pharynx-trachea-nasal cavity-bronchioles-alveoli-larynx
D.nasal cavity-alveoli-bronchioles-bronchi-trachea-larynx-pharynx
E.pharynx-trachea-nasal cavity-bronchioles-alveoli-larynx-bronchi


The first step of starch digestion is performed by

A.the tongue mixing food with saliva.
B.taste buds secreting pepsin.
C.amylase in the saliva.
D.the tongue mixing food with saliva which contains amylase.
E.glands in tongue secreting lipase.

The tracheal system of insects

A.helps remove metabolic wastes from their bodies.
B.makes a respiratory pigment in their hemolymph unnecessary.
C.relies on the expansion and contraction of the body wall to move air into and out of the system.
D.is limited to the posterior end of the body.
E.digests food and distributes nutrients to the body

It is important for sodium and chloride ions to be reabsorbed in the nephron so that

A.urea can be secreted.
B.some water will be reabsorbed through osmosis.
C.some glucose reabsorption will occur.
D.needed amino acids will be reabsorbed.
E.the pH of the blood is maintained.


If the stomach lining lacks mucus it will not efficiently absorb nutrients and can result in ________.

A.a bolus
B.acid reflux
C.heartburn
D.an ulcer
E.chyme

Explanation / Answer

b b c a c c e d

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