Faulty plasma membranes are to blame for all of the following diseases except:

A) familial hypercholesterolemia.
B) Graves' disease.
C) cystic fibrosis.
D) diabetes.
E) multiple sclerosis.


E) multiple sclerosis

Biology & Microbiology

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The macromolecule found in the cell walls of all bacteria is

A. lipid A. B. teichoic acid. C. peptidoglycan. D. glycocalyx.

Biology & Microbiology

Approximately what percentage of the human genome encodes proteins?

a. 1 b. 3 c. 5 d. 15 e. 50

Biology & Microbiology

Choose the correct order of the chambers through which oxygen-poor blood flows in an amphibian

heart. a. atrium ? ventricle ? sinus venosus ? conus arteriosus b. atrium ? conus arteriosus ? ventricle ? sinus venosus c. sinus venosus ? atrium ? ventricle ? conus arteriosus d. conus arteriosus ? atrium ? sinus venosus ? ventricle e. ventricle ? atrium ? conus arteriosus ? sinus venosus

Biology & Microbiology

Ava conducted an experiment to determine respiratory rates during different activities. She counted the number of breaths per minute. Ava noted that the number of breaths increases as physical activity increases. Why is there an increase in the number of breaths per minute as activity increases?

A As activity increases, more oxygen is exhaled. B As activity increases, breathing becomes more efficient. C As activity increases, the oxygen needs of cells increase. D As activity increases, the rate of the heart beating increases.

Biology & Microbiology