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Food intake, Digestion & Absorption

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

Resulting products for Pyralin (salivary amylase)

Back (Answer)

Forms dextrine + branched oligosaccharides

#2
Front (Question)

Substrate, action and resulting products for Pepsin

Back (Answer)

Protein (in the presence of HCL acid) Hydrolysis Polypeptides + aa

#3
Front (Question)

Substrate, action and resulting products for Gastric lipase

Back (Answer)

Fat, esp shorter chain Hydrolysis Free FAs

#4
Front (Question)

Substrate, action and resulting products for Lipase

Back (Answer)

Fat (in presence of bile salts) Hydrolysis Monoglycerides + FAs (incorporated into micelles)

#5
Front (Question)

Substrate, action and resulting products for Cholesterol esterase

Back (Answer)

Cholesterol Hydrolysis Esters of cholesterol + FAs (incorporated in micelles)

#6
Front (Question)

Substrate, action and resulting products for a-amylase

Back (Answer)

Starch + dextrins Hydrolysis Dextrine + maltose

#7
Front (Question)

Substrate, action and resulting products for Trypsin (activated trypsinogen)

Back (Answer)

Proteins + polypeptides Hydrolysis Interior peptide bonds to form polypeptides

#8
Front (Question)

Substrate, action and resulting products for Chymotrypsin

Back (Answer)

Proteins + polypeptides Hydrolysis Interior peptide bonds to form polypeptides

#9
Front (Question)

Substrate, action and resulting products for Carboxypeptidase

Back (Answer)

Polypeptides Hydrolysis Terminal peptide bonds to form aa

#10
Front (Question)

Substrate, action and resulting products for Elastase

Back (Answer)

Fibrous protein Hydrolysis Peptides + aa

#11
Front (Question)

What is the cause of GI movement?

Back (Answer)

Coordinated activity of: • Enteric nerves • Extrinsic nerves • Endocrine cells • Smooth muscle

#12
Front (Question)

NEUROTRANSMITTERS GABA Site of release + primary action

Back (Answer)

CNS Relaxes lower oesophageal sphincter

#13
Front (Question)

NEUROTRANSMITTERS Norepinephrine Site of release + primary action

Back (Answer)

CNS, spinal cord, sympathetic nerves ⬇️ Motility ⬆️ contraction of sphincters Inhibits secretions

#14
Front (Question)

NEUROTRANSMITTERS Acetylcholine Site of release + primary action

Back (Answer)

CNS + Autonomic system ⬆️ Motility Relaxes sphincters Stimulates secretion

#15
Front (Question)

NEUROTRANSMITTERS NEUROTENSIN Site of release + primary action

Back (Answer)

GI tract, CNS Inhibits release of gastric emptying + acid secretion.

#16
Front (Question)

NEUROTRANSMITTERS SEROTONIN (5-HT) Site of release + primary action

Back (Answer)

GI tract, spinal cord Facilitates secretion + peristalsis

#17
Front (Question)

NEUROTRANSMITTERS NITRIC OXIDE Site of release + primary action

Back (Answer)

CNS, GI tract Regulates blood flow Maintains muscle tone + gastric motor activity

#18
Front (Question)

NEUROTRANSMITTERS SUBSTANCE P Site of release + primary action

Back (Answer)

Gut, CNS, skin ⬆️ sensory awareness + peristalsis.

#19
Front (Question)

Where is gastrin secreted from?

Back (Answer)

Endocrine “G” cells in the antral mucosa of the stomach.

#20
Front (Question)

What initiates secretion of gastrin?

Back (Answer)

Distension of antrum after meal Impulses from vagus nerve

#21
Front (Question)

When is gastrin inhibited?

Back (Answer)

When acidity in lumen ⬆️

#22
Front (Question)

What does gastrin do?

Back (Answer)

Binds to receptors on parietal cells + histamine-releasing cells - To stimulate gastric acid To receptors on chief cells - To release pepsinogen To receptors on smooth muscle to ⬆️ gastric motility.

#23
Front (Question)

Where is secretin released from?

Back (Answer)

“S” cells in wall of proximal small intestine into bloodstream

#24
Front (Question)

Why is secretin released?

Back (Answer)

In response to gastric acid + digestive end products in duodenum.