Which statement(s) about control strategic is are incorrect? Choose any that app
ID: 3474536 • Letter: W
Question
Which statement(s) about control strategic is are incorrect? Choose any that apply. a. An advantage of a feedforward system is that it allows the body to anticipate a change, or prepare for something to happen. b. A disadvantage of a feedforward system is it doesn't allow you to respond to an unexpected change. c. An advantage of a positive feedback system is allows for rapid changes to a regulated variable. d. A disadvantage of a positive feedback system is that it is not homeostatic. e. A disadvantage of a negative feedback system is it requires some outside event to stop the response. f. All of the above are correct. Which of the following compounds is a carbohydrate? Choose any that apply. a C_5 H_10 O_5 b. C_5 H_12 O_ NS c. C_3 H_6 O_3 Water is polar: organic solvents (for ex., gasoline, ether, carbon tetrachloride and benzene) are nonpolar. A substance is found to dissolve in organic solvents but not in the water. Is this substance most likely polar or nonpolar, or both? a. both b. nonpolar c. polar An 18-year-old girl presents with a lack of secondary sexual characteristics, such as age-appropriate pubic hair growth and breast development. Her history reveals she has never started menses. She is diagnosed with 17-a-hydroxylase deficiency. The levels of various steroid hormones in her serum are found to be abnormal. Which of the following is she most likely lacking or docs she most likely have very low levels of? a) acetyl CoA b) cholesterol c) fatty acids d) glucose e) oleic acidExplanation / Answer
Answer 12
Option A is correct, according to which
An advantage of a feedforward system is that it allows the body to anticipate a change or prepare for something to happen.
Production of saliva in anticipation of good meal is an easy and best known example to understand the importance of feedforward mechanism.
Why not other options:
The above example contradict the option b, so option b is incorrect.
Positive feedback system helps in regulation of various metabolic processes by sending signals to brain of effected body parts. And positive and negative feedback mechanisms helps body in maintaining homeostasis.
To stop negative feedback mechanisms, there is no need of any external or outside event to occur. It was controlled by its last product formed.
For more details regarding positive and negative feedback mechanisms, you can refer my previous answer regarding positive and negative feedback mechanisms.
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