Answer the following three multiple choices questions: According to the cell the

Question

Answer the following three multiple choices questions:

According to the cell theory, bacteria . Select one: O a. are alive because they are made of cells and come from pre-existing cells O b. are not alive because they need cells to reproduce but are not cells themselves O c. are alive because they contain genetic material in a nucleus O d. are not alive because they are pathogens O e. are not alive because they are composed of only one cell Only prokaryotic organisms have a cell wall. Select one: O True O False Penicillin interferes with the synthesis of Select one: a. bacterial cell membranes O b. peptidoglycan O c, the nuclear envelope O d. membrane proteins e. ribosomes

Explanation / Answer

ANS) According to the cell theory, bacteria are alive because they are made of cells and come from pre-existing cells.

Any organism that can reproduce is known to be a living one. Here, since bacteria can reproduce (asexual reproduction) they are considered to be a living organisms and so new ones are made from pre-exisiting ones.

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ANS) Only prokaryotic organisms have a cell wall.

FALSE

All prokaryotes have a rigid and thick cell wall which gives them proper shape but even some Eukaryotes like Plant cells have cell wall. So, it is not true that only prokaryotes have cell wall.

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ANS) Penicilin interferes with the synthesis of peptidoglycan

Penicilin interferes with the synthesis of peptdoglycan that forms the cell wall, this interference leads to weakening the cell wall because of which they burst and die.

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