Exam 1: Introduction to the Study of Cell and Molecular Biology

Why are Archaea restricted to such harsh and difficult habitats?

Outside of a living cell,the virus exists as a particle called a(n)________,which is little more than a macromolecular package.

What factors presently limit the scope of organ transplantation as a treatment for human disease?

Usually,a virus infects a cell and arrests the normal synthetic activities of the host,redirecting the cell to use its available materials to manufacture viral nucleic acids and proteins,which assemble into new viruses.Ultimately,the infected cell ruptures and releases a new generation of viral particles that can infect neighboring cells.This type of infection is called a(n)_________ infection.

Among the most complex viruses are the ________,which are also the most abundant biological entities on Earth.

Briefly summarize the procedure involved in bone marrow transplantation.

Why are radiation and toxic chemicals ideal for destroying a recipient's blood cells?

A high powered microscope that allows investigators to examine the detailed surfaces of cells is called a ___________.

A fertilized frog egg is allowed to divide and the two daughter cells are then separated.What happens?

What is the name for undifferentiated cells that are both capable of self-renewal (production of more cells like themselves)and multipotent,that is capable of differentiating into two or more mature cell types?

What is the most appropriate unit of measurement for macromolecular complexes including ribosomes and microfilaments?

Which of the following are not considered to belong to the Archaea?