Exam 5: Eukaryotic Cells and Microorganisms

Fungi reproduce sexually less frequently than asexually. What might be the reason behind this infrequency of sexual reproduction?

A specimen from a patient suffering diarrhea shows a one-celled organism in the microscope. The organism moves very slowly by protruding its cytoplasm. You would predict that the patient has an infection caused by ______.

During unfavorable growth conditions, many protozoa can convert to a resistant, dormant stage called a/an ______.

Choose the correct order of the three main types of cytoskeletal elements in increasing order of size.

All algae have chloroplasts.

All fungi can form hyphae.

Amoebic dysentery is most commonly contracted through _______.

All fungi cause some kind of disease in plants or animals.

Larvae and eggs are developmental forms of ______.

There are no algae that can cause human disease.

The long, thread-like branching cells of molds are called ______.

Which of the following does not pertain to helminths?

The plasma cells of the immune system are responsible for secreting protein antibodies into the bloodstream. Within the plasma cell, the antibody moves through several organelles in what order?

The intertwined mass of hyphae that constitutes the body of a mold is a ______.

A group of protozoa that are not motile are the ______.

The cytoskeleton _______.

The site for ribosomal RNA synthesis is the ______.

In the life cycle of the pinworm Enterobius, a common pediatric infection, the child carries the adult worm in his/her intestine. The adult worm releases eggs, which are transmitted out of the body in the feces. The child will scratch the itching anal region, picking up the worm eggs and re-inserting them into his/her mouth. For this helminth life cycle, the human is the ______ host.

A saprobe differs from a parasite in that _______.

There are nine peripheral pairs and one central pair of _____ found inside eukaryotic flagella and cilia.