Vanessa takes many vitamin supplements, claiming that they give her energy. She is mistaken because cells preferentially use ________ for energy.
A. carbohydrates
B. amino acids
C. proteins
D. minerals
Answer: A
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Which of the following is not a body membrane?
A. Serous B. Mucous C. Cutaneous D. Synovial E. Cartilaginous
When membrane potential changes, we use the terms depolarization, hyperpolarization, and repolarization
Explain what is happening to the membrane potential in relation to the extracellular fluid during depolarization and hyperpolarization and how each phase could be achieved by negatively charged ions. Next, explain how it is possible for the membrane to be in both hyperpolarization and repolarization at the same time. What will be an ideal response?
True or False? The thoracic cavity is divided into right and left parts by a median partition called the sternum.
Answer the following statement true (T) or false (F)
The body is protected against viral infections by a protein called ______.
a. interferon b. complement c. kinin d. histamine e. lysozyme