What is the difference between the basal metabolic rate (BMR) and the total metabolic rate (TMR)? Which one should dieters focus on for weight loss?
What will be an ideal response?
Basal metabolic rate (BMR) is the amount of heat produced by the body at rest based on the amount of energy, or kilocalories, needed to operate per hour. Essential life operations include breathing, heartbeat, kidney functions, etc.
Total metabolic rate (TMR) is the total amount of kilocalories needed for the body to perform all of the ongoing activities. Muscular activity increases TMR. Dieters should focus on the TMR and reduce the kilocalorie intake by 20 percent or more to induce weight loss.
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Differentiation refers to the
A. formation and organization of the diverse cell types in the body. B. time when the blastocyst implants in the uterine wall. C. moment of conception (when sperm and egg unite). D. formation of the various organ systems in the body. E. separation of the placenta from the fetus at birth.
Which statement is true regarding action potential propagation?
A) In salutatory conduction, the myelin is composed of fat, which insulates the axon membrane against sodium ion flow across the membrane. B) Continuous propagation results in one graded potential producing multiple action potentials. C) The action potential will die out along the axon if another graded potential does not occur. D) All voltage-gated channels along the axon open at the same time, allowing sodium to flow in simultaneously. E) The active transport of sodium and potassium through sodium-potassium ion pumps causes depolarization of the axon membrane.
Answer the following questions true (T) or false (F)
1. Cells may lyse when placed into a hypertonic environment. 2. Mr. Weddington was admitted to the hospital with chronic heart failure. His feet and legs were swollen with fluid. He should be given a hypotonic drip to draw fluid out of his cells. 3. Both cilia and flagella are constructed of a ring of nine pairs of microtubules surrounding two central microtubules.
Using the table as a reference, describe how falling down a flight of stairs could affect at least six of the organ systems
What will be an ideal response?