Application-Level Multiple-Choice Items

Humans need to eat protein-containing foods regularly because:

Question

Application-Level Multiple-Choice Items​

Humans need to eat protein-containing foods regularly because:​

BlackTom AI · Accepted Answer

Question focus: why do humans need to eat protein-containing foods regularly?
Option 1: "protein is broken down quickly during digestion and lost from the body." This claim misstates protein physiology. While some amino acids are absorbed and used, proteins are not simply 'lost' during digestion; the body recycles amino acids and uses them for protein synthesis and other functions. The idea of rapid, net loss of intact protein from the body is inaccurate and incomplete.
Option 2: "we need essential amino acids that can only be provided by foods." This statement centers on essential amino acids, which cannot be synthesized by the body and must come from the diet. Because foods supply these indispensable building blocks for proteins, regular intake is necessary. This aligns with established nutrition concepts about indispensable amino acids. 
Option 3: "protein is a good source of the essential nutrients iron, zinc, and B12." While protein-containing foods often contain iron and zinc, and some animal-protein sources provide vitamin B12, saying protein is a good source of these nutrients as an intrinsic property is imprecise. The nutrients are not inherent to protein itself; they are micronutrients found in many foods, and B12 is not present in plant proteins. This statement oversimplifies and can mislead about micronutrient sources. 
Option 4: "our bodies cannot make any amino acids needed for proteins." This is incorrect. The body makes many nonessential (non‑essential) amino acids through various metabolic pathways. Only essential amino acids must come from the diet. 
Option 5: "the function of protein is to maintain our muscle strength." While protein supports muscle tissue, its roles are broader (enzymes, hormones, immune function, transport, structural components, etc.). Claiming that maintenance of muscle strength is the sole function ignores these other critical roles. 
Overall, each option contains elements that are either incomplete or inaccurate, except the one emphasizing essential amino acids that must be supplied by foods, which reflects a core nutritional principle about indispensable amino acids and dietary protein needs.

Fal25_NUTR011_78664 Quiz - Proteins (ck)

Application-Level Multiple-Choice Items Humans need to eat protein-containing foods regularly because:

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Fal25_NUTR011_78664 Quiz - Proteins (ck)

Application-Level Multiple-Choice Items​ Humans need to eat protein-containing foods regularly because:​

View Explanation

Log in for full answers

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Application-Level Multiple-Choice Items Humans need to eat protein-containing foods regularly because: