ch4 micro bio

Which of the following lines of evidence suggest that mitochondria evolved from the endosymbiosis of a pre-eukaryotic cell with a prokaryote?

All of these suggest that mitochondria evolved from prokaryotes.

Most helminths are macroscopic, yet they are studied in the field of microbiology. This classification is due to the fact that during their lifecycle, they may produce which microscopic structures?

Eggs or larvae

Scientists believe that the modern eukaryotic cell evolved 3.5 billion years ago when a photosynthetic bacteria and an aerobic bacteria fused together.

False

Chitin is a chemical component of the cell walls of _____.

Fungi

An organelle that is a stack of flattened, membranous sacs and functions to receive, modify, and package proteins for cell secretion is the ________.

Golgi apparatus

Which of the following does not pertain to helminths?

In kingdom Protista

Filamentous fungi are called _____.

Molds

Which of the following is not a function of the eukaryote glycocalyx?

Movement

Pinworm is characterized as which type of helminth?

Nematode

Which of the following is found in eukaryotic cells but not in the cells of bacteria?

Nucleus, Mitochondria, Endoplasmic reticulum, Lysosomes

The RN explains the pinworm life cycle to the student's mother. Which of the following statements by the mother demonstrates a need for further education and reinforcement of the nurse's teaching?

Pinworm is transmitted through droplets in the air.

Cell walls are not usually found in _____.

Protozoa

The RN educates the student's mother that anal scratching, followed by putting the fingers in the mouth, may allow the pinworm infection to persist in the host. Which of the following terms best describes this phenomenon?

Reinfection

Parasitic worms have a highly developed ______ system.

Reproductive

Most fungi obtain nutrients from dead plants and animals. These fungi are called _____.

Saprobes

Eukaryotic mitochondria have their own 70S ribosomes and circular DNA.

True

The Last Common Ancestor gave rise to the cells in the following three domains we recognize today: the Bacteria, the Archaea, and the Eukarya.

True

Protists include ________.

algae and protozoa

The cytoskeleton ________.

anchors organelles, provides support, functions in movements of the cytoplasm, helps maintain cell shape

All of the following are found in some or all protozoa except ________.

cell wall

The cell's series of tunnel-like membranes functioning in transport and storage are the _____.

endoplasmic reticulum

Mitochondria possess all of the following except ________.

enzymes for photosynthesis

Fungal spores differ from bacterial endospores in that ________.

fungal spores are reproductive, whereas bacterial endospores are for survival

The eukaryotic cell's glycocalyx is ________.

mostly polysaccharide

The site for ribosomal RNA synthesis is the _____.

nucleolus

The RN explains to the patient's mother that Enterobius vermicularis is a helminth. He explains that disease-causing helminths are ________.

primarily found in the gastrointestinal tract

Histones are ________.

proteins associated with DNA in the nucleus