Cell Biology Answers

Describe the methods for separating macro molecules on the basis of
molecular size, solubility and molecular affinity.

Which of the following events would result on decreased blood glucose levels?
A. Digestion of food in the body
B. Release of insulin by the pancreas
C. Breakdown of glycogen in the liver
D. Release of glucagon by the pancreas

The type of tissue that is least likely to be donated for transplantation in another person is?
A. Connective tissue
B. Muscle tissue
C. Epithelial tissue
D. Nervous tissue

Which of the following tissues consist of tightly packed sheets of cells that are usually anchored on only one face of the tissue?
A. Connective
B. Epithelial
C. Nervous
D. Muscle

The solid portion of the blood is primarily made up if what?
A. Plasma
B. Ted blood cells
C. White blood cells
D. Platelets

After being wounded, what type of cells (part of the second line of defense) begin to fight off bacteria?

How do these cells know that the bacteria have penetrated through the skin?

If the length of DNA is 1.36 mm, the number of base pair and nucleosomes in it will be?

What are the main differences between: PLASMA, TISSUE FLUID AND LYMPH please
Thanks

A slide containing some human liver cells was viewed under an electron microscope. Which of the following observations could not have been made?

a) The cells contained large number of starch granules.
b) The cytoplasm contained large amount of ribosomes.
c) The cytoplasm contains extensive endoplasmic reticulum.
d) Large numbers of mitochondria are present in the cytoplasm.

Explain how you derive the answer.

Explain the role of the microscope in the discovery of cells and microscopic organisms.