Briefly discuss the major functions of the three macronutrients that provide us energy.
What will be an ideal response?
Carbohydrates are the major energy form for the body, and nondigestible forms aid in elimination and help regulate glucose and cholesterol. Protein is responsible for growth and repair of bone and muscle and forms important parts of cells, blood, enzymes, and hormones. Fats provide energy and aid in the absorption of vitamins, cushioning of organs, insulation, and cell maintenance.
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Axons of the nervous system are described as afferent and efferent according to the direction in which they carry information. Which of the following represents an efferent projection? Choose the correct option
A) Sensory input to the spinal cord B) Motor output of the spinal cord C) Interneurons in the spinal cord D) Sensory input to the spinal cord, Motor output of the spinal cord, Interneurons in the spinal cord
The medical term for abnormal (excessive) muscle growth is:
A) hypertrophy B) atrophy C) bradykinesia D) dyskinesia
The semicircular canals are sensory organs for hearing
Indicate whether the statement is true or false
Which statement about gateway drugs is false?
a. A gateway drug is also known as a stepping-stone drug. b. Marijuana is often a gateway drug for cocaine and heroin. c. Research has shown that tobacco is seldom a gateway to hard drug use. d. Alcohol may become a gateway drug for harder drug use among adolescents.