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Micro 150 Lecture exam 2 PVCC Questions and Answers 100% Solved correctly
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True - ️️True or false: Aerobic and anaerobic respiration are exactly the same EXCEPT for the terminal electron acceptor Initiation - ️️The start of transcription. Signaled by the transcription initiation complex formed by the promoter region, transcription factors, and RNA polymerase ...

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  • November 12, 2024
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  • 2024/2025
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Micro 150 Lecture exam 2 PVCC
True - ✔️✔️True or false:
Aerobic and anaerobic respiration are exactly the same EXCEPT for the terminal
electron acceptor


Initiation - ✔️✔️The start of transcription. Signaled by the transcription initiation
complex formed by the promoter region, transcription factors, and RNA polymerase

Helicase - ✔️✔️Unzips the DNA helix

Primase - ✔️✔️synthesizes RNA primers

DNA polymerase III - ✔️✔️Adding bases to the new DNA chain, proofreading the chain
for mistakes

DNA polymerase I - ✔️✔️Removing primer, closing gaps, repairing mismatches

Ligase - ✔️✔️final binding of nicks in DNA during synthesis and repair

Topoisomerases I and II - ✔️✔️supercoiling and untangling

5'-3' - ✔️✔️DNA replication occurs in what direction


Elongation - ✔️✔️The fractional increase in a material's length due to stress in tension
or thermal expansion.

Anabolic - ✔️✔️Any process that results in the synthesis of cell components is:

In trace amounts, required in small amounts and used for enzyme function -
✔️✔️Micronutrients are:

A micronutrient and an organic compound - ✔️✔️A cofactor for an enzyme can be:

Regulated - ✔️✔️Enzymes in which their expression depends on nutrient availability

B) Helicase - ✔️✔️Which of these enzymes are involved with DNA replication

A) RNA polymerase
B) Helicase
C) Ribosome

, D) All of the above

Surfactant - ✔️✔️Detergents act as this to kill microbes

Conjugation - ✔️✔️A mechanism of horizontal gene transfer includes:

Oxidative phosphorylation - ✔️✔️ATP synthesis coupled with the electron transport
chain is called:

Active site - ✔️✔️A substrate interacts with an enzyme at the:

Bacteriostatic - ✔️✔️What are chemical agents that prevent an organism from growing
called?

Deoxyribose sugar and phosphate - ✔️✔️The DNA backbone is made of:

Ribosome; codons - ✔️✔️This enzyme reads _____________ to build the peptide
chain

Sterlization - ✔️✔️A method of microbial control that removes all viable organisms
including spores

Mutualism - ✔️✔️Type of symbiotic relationship in which both members benefit

An electron carrier, an organic cofactor, and nicotinamide adenine dinucleotide -
✔️✔️NAD is:

Time, number of organisms and the microbial target - ✔️✔️Germicides are affected by:

Essential nutirent - ✔️✔️Any substance that must be provided to an organism

Heat - ✔️✔️Physical control that denatures proteins

Induced mutagen - ✔️✔️This type of mutation occurs from exposure to a mutagen

Endoparasite - ✔️✔️Organisms that live in the organs and tissues

False - ✔️✔️True or false:
Facilitated diffusion requires energy

True - ✔️✔️True or false:
Enzymes are organic catalysts

Messenger RNA - ✔️✔️Transcription results in the production of:

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