Which statement about the oral phase of digestion

Question 1 of 5

Which statement about the oral phase of digestion is INCORRECT?

A. About 2% of the energy content of food is expended during the action of chewing and swallowing it. B. Swallowing involves contraction and relaxation of at least 14 groups of muscles in about 10 seconds in healthy subjects C. The biofilm covering tooth enamel contains several salivary and bacterial enzymes D. Salivary amylase digests the dextran film on tooth enamel formed from dietary sucrose

Correct Answer: D

Rationale: Correct Answer: D Rationale: Salivary amylase primarily digests carbohydrates in the oral cavity, breaking down starch into simpler sugars like maltose. It does not directly target the dextran film on tooth enamel formed from dietary sucrose. This film is typically broken down by dental plaque bacteria, not salivary amylase. Therefore, option D is incorrect. Summary of Incorrect Choices: A: This statement is correct. Chewing and swallowing do require energy expenditure. B: This statement is correct. Swallowing involves the coordinated action of multiple muscle groups. C: This statement is correct. The biofilm on tooth enamel contains enzymes from both saliva and bacteria, contributing to oral digestion.

Question 2 of 5

Which of the following statements is TRUE? The protein FOXO1:

A. activates (increases the expression of) genes related to greater longevity B. is activated by caloric restriction C. is deactivated by increased insulin signalling D. all of the above are true

Correct Answer: D

Rationale: Step-by-step rationale: 1. FOXO1 activates genes related to greater longevity by regulating stress responses and promoting cell survival. 2. Caloric restriction activates FOXO1 to promote cellular stress resistance and increase lifespan. 3. Increased insulin signaling deactivates FOXO1, leading to decreased stress resistance and potentially shorter lifespan. 4. Therefore, all the statements (A, B, and C) are true regarding the protein FOXO1. It plays a crucial role in longevity through gene regulation, is activated by caloric restriction, and is deactivated by increased insulin signaling.

Question 3 of 5

You are caring for a client with a nasogastric (NG) tube. Which task can be delegated to the experienced nursing assistant?

A. Remove the NG tube per physician order. B. Secure the tape if the client accidentally dislodges the tube. C. Disconnect the suction to allow ambulation to the toilet. D. Reconnect the suction after the client has ambulated.

Correct Answer: B

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 4 of 5

A client has diarrhea due to a high carbohydrate and electrolyte content of the fluid in the tube feeding. Which of the following nursing actions will be most appropriate?

A. Instructing the client to remain in a semi-Fowler's position B. Consulting the physician about decreasing the infusion rate C. Administering the tube feedings continuously D. Maintaining the tube patency

Correct Answer: B

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 5 of 5

Which of the following dietary interventions should a nurse consider after the removal of the nasogastric tube in a client who has undergone surgery for a liver disorder?

A. Provide small sips of clear liquids B. Provide small sips of fruit juice or soup C. Provide small meal of soft foods D. Provide meal of protein-rich foods

Correct Answer: A

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Which statement about the oral phase of digestion is INCORRECT?

Nurselytic

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