If a human cell were to increase the amount of cholesterol embedded within its plasma membrane which of the following would most likely happen?
A) The plasma membrane would become more permeable to ions and less permeable to lipids.
B) The cell would form a plaque that could potential block a blood vessel.
C) The plasma membrane would become more fluid and the phospholipids less stable.
D) The plasma membrane would become more stable, less fluid and less permeable.
D
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Lymph
A. is filtered by the spleen. B. is synthesized by the lymphoid organs. C. is excess interstitial fluid. D. is found only when there is a pathological condition that allows it to leak from capillaries. E. All of the choices are correct.
The carina is at the location of the bifurcation of the trachea into the right and left primary bronchi.
Answer the following statement true (T) or false (F)
Introduction to the Structural Units: Fill in the blank(s) with the appropriate word(s).
1. The standard used for measurement in science is the ____ system. 2. Danny, age 6, fell off his skateboard and had a 1.5-inch abrasion on his left arm. This is the same as ___ centimeters. 3. Two teaspoonfuls of cough medicine equal ___ milliliters of cough medicine. 4. The doctor orders 2 grams of penicillin to be divided into 4 doses over 24 hours. This means the average single dose will be ___ milligrams. 5. A kilogram is equal to ___ pounds.
What is released by axon terminals into the synaptic cleft to stimulate a muscle to contract?
A) potassium ions B) actin C) sodium ions D) acetylcholine E) myosin heads