Question

i need all the answers bug mosly i need #4,7&46 thank you

1) Bacteria containing the within their chromosomes function as the donors during conjugation and attach to the recipient cell via a A) F-plasmid: pilus B) R-plasmid : bacteriophage C) F-Factor : bacteriophage D) R-Factor: pilus E) F-Factor: pilus F) F-plasmid : bacteriophage 2) How does a plant's primary carbon source enter the leaf? A) Through the stomata B) Through the thylakoids C) Through the roots D) Through the chloroplasts 3) A microbiologist analyzes a novel coronavirus and finds that the viral envelope contains a protein characteristic of bat cells. Which of the following is the most likely explanation? A) The virus is a prophage. B) Its presence is a result of the bat's immunological response. C) The viral envelope forms as the virus leaves the host cell. D) The virus fools its host by mimicking its proteins. 4) There are over 40 different proteins that assemble to form the bacterial flagella. Due to this complexity, what is the most likely explanation for how this structure evolved? A) The bacteria engulphed a bacteriophage with a similar structure, B) Genes for eukaryotic flagella were taken up and expressed in bacteria via transformation. C) Bacteria modified the syringe-like secretion system into a whip-like flagella. D) Early bacterial species needed to be able to move quicker and thus modified the existing pili for more complex movement.

Answer 1

1.(A) f-plasmid, pilus

2.(A) Through the stomata

3.(B)-Its presence is a result of the bacterial immunological response.

4.(C) Bacteria modified the syringe-like secretion system into whip-like flagella

7.(B),(C),(D)

A Halophile-because of high salinity

A Thermophile-because high temperature

A methanogen-produces methane

45.(A)Micoplasma laboratorium: chlamydias

46.(A) The light reactions produce ATP and NADPH which are necessary for Calvin cycle.

The overall purpose of light dependent reaction is to convert solar energy into chemical energy in the form of NADPH and ATP. This chemical energy will be used by calvin cycleto fuel the assembly of sugar molucule.