The most important molecules for making the cell membrane selectively permeable are ________.
A. carbohydrates
B. phospholipids
C. cholesterol molecules
D. ATP molecules
Answer: B
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Which statement about blood is true?
A) Oxygen is transported by the leukocyte. B) Leukocytes are the most common cell in blood. C) The neutrophil is the rarest type of white blood cell. D) Red bone marrow produces erythrocytes, leukocytes, and thrombocytes.
What type of neuronal synapse occurs between cardiac muscle cells?
A. Physical synapse B. Magnetic synapse C. Chemical synapse D. Mechanical synapse E. Electrical synapse
Sound waves are converted into mechanical movements by the
A) auditory ossicles. B) cochlea. C) oval window. D) round window. E) tympanic membrane.
Putting two thin layers of tissue together forms membranes.?
Indicate whether the statement is true or false