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