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MCB 3020 Exam Questions with Latest Update
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Differentiate between the types of microorganisms studied by microbiologists -eukaryote - Answer-An organism characterized by having cells containing DNA in a membrane-bound Organelle Differentiate between the types of microorganisms studied by microbiologists -prokaryote - Answer-An organ...

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  • October 9, 2024
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  • differentiate between the types of microorganisms

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MCB 3020 Exam Questions with Latest
Update
Differentiate between the types of microorganisms studied by microbiologists

-eukaryote - Answer-An organism characterized by having cells containing DNA in a
membrane-bound Organelle

Differentiate between the types of microorganisms studied by microbiologists

-prokaryote - Answer-An organism characterized by having a cell lacking a membrane-
bound nucleus

Differentiate between the types of microorganisms studied by microbiologists

-prion - Answer-An infectious agent consisting of only protein

Differentiate between the types of microorganisms studied by microbiologists

-viroid - Answer-An infectious agent consisting of only RNA

Differentiate between the types of microorganisms studied by microbiologists

-virus - Answer-An infectious agent made up of protein, nucleic acids and sometimes a
lipid membrane

chloroplast function - Answer-Location for the cellular process of photosynthesis

peroxisomes function - Answer-Location for storage of protective compounds that break
down lipids and detoxify certain chemicals

endoplasmic reticulum function - Answer-Location for protein modification prior to
secretion or delivery to other cellular compartments

lysosome function - Answer-Location for storage of many types of degradative enzymes

nucleus - Answer-Location for DNA and RNA synthesis

golgi apparatus function - Answer-Location for protein synthesis and some protein
modifications

mitochondria function - Answer-Location for most metabolic reactions in cellular
respiration

, Which of the following must leave the nucleus via the nuclear pore complexes? -
Answer-Immature ribosomal subunits, tRNA, and mRNA

The most important distinguishing feature of eukaryotes that is lacking in prokaryotes is
- Answer-the division of the cell into compartments bounded by membranes.

Enzymes needed to digest all types of macromolecules are found in - Answer-
lysosomes

- Answer-

Which of the following is a function of the mitochondrion? - Answer-ATP synthesis,
Electron Transport, Tricarboxylic acid cycle enzyme reactions.

Which is the most common cell wall in most Archaea? - Answer-S Layer

Carl Woese distinguished between the members of the Archaea and the Bacteria using
studies of their ________. - Answer-ribosomal RNA

Which of the following protects bacteria from lysis in dilute solutions and helps to
determine their cellular morphology or shape? - Answer-peptidoglycan

Which bacterial cytoplasmic structure is used for storage of Carbon, Glycogen, Amino
Acids, and other nutrients? - Answer-storage inclusion

Extrachromosomal DNA in Bacteria and Archaea are commonly found in the form of -
Answer-plasmids

Which acellular agent is composed of nucleic acids only? - Answer-satellites

The term used to describe bacteria that are rod-shaped is - Answer-bacillus

Which of the following experiments is used to identify new pathogens? - Answer-koch
postulates

Which acellular agent is composed of proteins only? - Answer-prions

Chemotaxis is a process by which bacteria - Answer-move toward an attractant or away
from a repellent.

The first of Koch's postulates is - Answer-the microorganism must be present in every
case of the disease but absent from healthy organisms.

The first direct evidence of primitive cellular life was the 1977 discovery of _________
fossils in the Swartkoppie chert, a type of granular sedimentary rock rich in silica -
Answer-microbial

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