In humans what happens when the breathing rate increases 2 points
1) Additional oxygen will diffuse into the blood as
carbon dioxide diffuses out of the blood in the
lungs.
2) Additional carbon dioxide will diffuse into the
blood as oxygen diffuses out of the blood in the
lungs.
3) Oxygen from body cells will diffuse more rapidly
into red blood cells.
4) Increased oxygen dissolved in the blood will
stimulate the cerebrum to slow the breathing rate.
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What is the significance of the protein-lined pits? a. protein attracts other proteins needed for atp synthesis within the cell. b. protein-lined pits are able to transport one molecule at a time down the concentration gradient within the cell. c. the polarity of proteins allows other polar molecules to attach and be transported in the cell by transport channels. d. receptors within the pits allow ligands to fuse and be transported into the cell by endocytosis.

Consider the following reaction: 2h2 + o2 —> 2h2o a) what are the reactants in this reaction? b) what are the products in this reaction? c) how many molecules of oxygen are used in this reaction?

The polio virus can cause skeletal muscle paralysis by destroying neuron cell bodies. what area of the spinal cord is destroyed