Cell A is a gland cell that makes and secretes proteins. Cell B is another type of cell that synthesizes and secretes steroids. If you were to look at electron micrographs of the two cells, what differences would you expect to see?
A. The two cells would most likely look identical.
B. Cell A would have fewer secretion granules than cell B.
C. Cell B would have more granular endoplasmic reticulum than cell A.
D. Cell A would have more granular endoplasmic reticulum than cell B.
E. Cell A would have more agranular endoplasmic reticulum than cell B.
Answer: D
You might also like to view...
Some athletes, in order to gain an advantage over their competitors, participate in blood doping. This process increases the number of red blood cells in their cardiovascular systems and in turn delivers more oxygen to their metabolically active tissues. Which statement best describes how athletes' blood dope and the dangers associated with blood doping?
A) Athletes receive blood transfusions to increase the number of red blood cells and by doing so increase their chances of developing aids or hepatitis C. B) Hemoglobin is injected, increasing the oxygen carrying capacity of red blood cells. However, too much hemoglobin can cause hemolysis. C) Colony-stimulating factors are injected to increase the number of red blood cells. Too many, however, can clog arteries, causing a heart attack. D) Leukocytes are injected because they are larger than red blood cells. However, they make the body more susceptible to infection. E) Erythropoietin is injected stimulating more red blood cell production. An increase in red blood cells increases the hematocrit which can increase blood pressure and weaken vessels making the chances of stroke increase.
The term "central dogma of molecular biology" was coined by a co-discoverer of the structure of DNA, Francis Crick. The term is used to define how information flows in biological systems. Which of the following statements about DNA, mRNA and proteins provide a simple definition of the "central dogma?"
A)mRNA can be copied into DNA to make protein. B)Proteins can provide the instructions for making other proteins. C)mRNA is a key in creating DNA. D)DNA allows the production of mRNA. mRNA allows for the production of protein.
Body cells communicate with immune system cells through direct contact involving the sugary coatings on the cells' surfaces.
Answer the following statement true (T) or false (F)
An electromyogram measures ________
A) electrical activity of motor neuron B) electrical activity of muscle C) tension produced in a muscle