Hydrogen peroxide solution is often used to sterilize cuts and scrapes. Why does hydrogen peroxide bubble when it is poured on an open wound but not when it is poured on intact skin?
What will be an ideal response?
Catalase is found in the blood but not on the skin. When the peroxide is exposed to the
blood of an open wound, the catalase breaks it down into water and oxygen gas. The
oxygen being released through the water causes the production of bubbles.
Define homeostasis.
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Which is NOT a function of the Golgi apparatus?
A. Addition of carbohydrate groups to proteins B. Modifying proteins destined for secretion C. Sorting of proteins destined for various locations in the cell D. Transcribing a signal sequence onto proteins destined for secretion E. Packaging enzymes destined for lysosomes
The part of the thalamus that filters auditory information and relays some of it on to the temporal lobe of the cortex is the ________ geniculate nucleus
Fill in the blank with correct word.
Besides chromosomes, what else does the sperm provide to the zygote that is necessary for cell division to occur?
A. Centrosome B. Enzymes C. Mitochondria D. All of the choices are correct.
Listening with a stethoscope just to the right near the lower end of the sternum, sounds come most distinctly from the
A. tricuspid valve. B. pulmonary valve. C. mitral valve. D. aortic valve.