What do chemoreceptors monitor?
a. acidity
b. protein or fat content of ingested food
c. salt content
d. osmolarity
e. toxicity
b
Anatomy & Physiology
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Simple diffusion and facilitated diffusion differ in that facilitated diffusion requires assistance of a membrane protein to move substances across a membrane.
a. true b. false
Anatomy & Physiology
Unique molecules found on the outer surface of cell membranes are called ________
A) Antigens B) Interferon C) Antibodies D) Cytokines
Anatomy & Physiology
Blood cells and antibodies pass freely across the placenta
Indicate whether this statement is true or false.
Anatomy & Physiology
The nucleus is surrounded by a double-layered membrane, the ____________________ which is pierced by many nuclear ____________________
Fill in the blank(s) with correct word
Anatomy & Physiology