What is tubular reabsorption?
A. The reabsorption of blood cells in the nephron into the body.
B. The transport additional solutes from the blood into the filtrate by tubule cells.
C. The absorption of proteins into the filtrate which later becomes urine.
D. The process where the nephron returns water and some filtered molecules to the blood.
E. The passage of water and ions into the filtrate during filtration in the nephron.
Answer: D
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Which of the following statements about bone remodeling and repair is correct?
A. Bone remodeling involves removal of old bone by osteoblasts. B. The rate of bone remodeling increases in the elderly. C. Exposure of a bone to increased mechanical stress can lead to bone remodeling. D. Bone remodeling does not involve the activity of the osteoclasts and the osteoblasts. E. As a long bone increases in diameter, the size of the marrow cavity decreases.
Which primary tissue type would be represented by blood, body fat, ligaments and tendons, dermis of the skin, and the cartilage of some joints?
A. Epithelial tissue B. Connective tissue C. Nervous tissue D. Muscle tissue E. None of the choices is correct.
The skin on the posterior surface of the hand is supplied by the
A) median nerve. B) musculocutaneous nerve. C) ulnar nerve. D) axillary nerve. E) radial nerve.
When atoms of elements on the left side of the periodic table ionize, they tend to
A. add neutrons and therefore become megaions. B. gain protons and therefore become anions. C. gain electrons and therefore become anions. D. lose electrons and therefore become cations. E. lose protons and therefore become cations.