BIOCHEM L2C | Nutrients and Diet
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Questions and Answers

What is the main role of vitamins and other micronutrients?

  • Participation in enzymatic reactions as cofactors or components of enzyme prosthetic groups (correct)
  • Regulation of food intake
  • Structural role in the body
  • Energy production

Which nutrient can be used to produce energy?

  • Vitamins
  • Fats (correct)
  • Minerals
  • Proteins

How long can a human survive without food with oxygen and water supplied?

  • 60-90 days (correct)
  • 30-45 days
  • 45-60 days
  • 90-120 days

What is the total of all the foods and drinks ingested by an individual called?

<p>Diet (C)</p> Signup and view all the answers

Which are the main classes of nutrients mentioned in the text?

<p>Carbohydrates, proteins, and fats (C)</p> Signup and view all the answers

What is the Glycemic index used to measure?

<p>The effect of food on blood sugar levels (D)</p> Signup and view all the answers

Which of the following statements about adiponectin is correct?

<p>Its receptors are upregulated in skeletal muscle after physical training (D)</p> Signup and view all the answers

Which route is used for providing enteral feeding when oral intake is impossible but the gastrointestinal (GI) tract is functional?

<p>Both nasogastric and nasojejunal routes (A)</p> Signup and view all the answers

What is the optimal route for nutritional support according to the text?

<p>Oral intake (C)</p> Signup and view all the answers

What do standard enteral feeds contain?

<p>Carbohydrate, protein, fat, water, electrolytes, vitamins, and minerals (B)</p> Signup and view all the answers

When is total parenteral nutrition appropriate?

<p>When the gastrointestinal tract does not function (B)</p> Signup and view all the answers

According to Mary's doctor, what should Mary be consuming based on the advice given?

<p>Low glycemic index (GI) foods (C)</p> Signup and view all the answers

Which of the following effects is NOT associated with high glycemic index foods as mentioned in the text?

<p>Reduce visceral fat deposition via insulin (C)</p> Signup and view all the answers

What happens to adiponectin concentration in obesity and type 2 diabetes?

<p>It decreases (B)</p> Signup and view all the answers

Which of the following is responsible for controlling postprandial glycemia and insulinemia and is beneficial for people with diabetes?

<p>Low-GI foods (C)</p> Signup and view all the answers

What is the main nutrient responsible for providing thermal insulation, serving as signaling molecules, and being essential components of biological membranes?

<p>Saturated fats (A)</p> Signup and view all the answers

Which nutrient is indigestible by the human gut and includes cellulose, hemicellulose, lignin, pectin, and β-glucan?

<p>Fiber (D)</p> Signup and view all the answers

What nutrient is tested to rank carbohydrate-containing foods according to the degree of increase in blood glucose after ingestion?

<p>Glycemic index (B)</p> Signup and view all the answers

Which nutrient provides cell structure and is responsible for many of the cell's functions, communications, and signaling?

<p>Proteins (D)</p> Signup and view all the answers

Which nutrient is particularly rich in monounsaturated fats and is present in all animal and vegetable fats?

<p>Olive oil (C)</p> Signup and view all the answers

'Low GI' foods are expressed on a scale of ___.

<p>-0 to 100 (D)</p> Signup and view all the answers

What translates the qualitative information contained in the GI into data that can be used to calculate the carbohydrate content of a given portion of food?

<p>'Glycemic load' (C)</p> Signup and view all the answers

'Trans fatty acids' are by-products of which process?

<p>Hydrogenation of liquid vegetable oils (A)</p> Signup and view all the answers

'Adiponectin' stimulates glucose utilization in muscle and increases fatty acid oxidation in which two parts of the body?

<p>Muscle and liver (C)</p> Signup and view all the answers

What nutrient serves as the 'last resort' energy substrate and is typically associated with releasing amino acids from muscle during catabolic states?

<p>Proteins (B)</p> Signup and view all the answers

Which nutrient is essential for maintaining membrane potential, osmotic equilibrium, and bone structure?

<p>Minerals (C)</p> Signup and view all the answers

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