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Plant Proteins and Food Protein Quality

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Questions and Answers

What is the role of pepsin in protein digestion?

Denaturing proteins

Stimulating the pancreas to release proteases

Breaking down long polypeptide chains (correct)

Actively absorbing amino acids

How are short peptides and amino acids absorbed in the small intestine?

By breaking down to monosaccharides

Actively absorbed in absorptive cells (correct)

By staying in the stomach for further breakdown

By converting to fats in the liver

What happens if protein consumption is inadequate according to the text?

Excess fluid moves into capillary beds

Excessive fluid builds up in blood

Blood proteins concentrate (correct)

Edema occurs due to protein deficiency

Which hormone stimulates the release of secretin and cholecystokinin (CCK) in the small intestine?

Gastrin Signup and view all the answers

What is the main function of albumin and globulin in the blood proteins?

Maintain fluid balance Signup and view all the answers

What is the primary role of proteins as buffers according to the text?

Regulate ion levels Signup and view all the answers

What does the biological value (BV) of a food protein measure?

How efficiently absorbed food protein is converted into body tissue protein Signup and view all the answers

What is the purpose of the Protein Efficiency Ratio (PER)?

To compare weight gain of laboratory animals consuming different proteins Signup and view all the answers

How is the Protein Digestibility Corrected Amino Acid Score (PDCAAS) calculated?

By multiplying a food's chemical score by its digestibility Signup and view all the answers

What happens if an individual's protein intake equals their losses?

Their protein balance is maintained Signup and view all the answers

What is the Recommended Dietary Allowance (RDA) for protein intake in adults?

0.8 g/kg of body weight Signup and view all the answers

What does the Acceptable Macronutrient Distribution Range (AMDR) for protein recommend?

10-35% of total calories from protein Signup and view all the answers