STRAIGHTERLINE MICRO 250 ACTUAL FINAL

STRAIGHTERLINE MICRO 250 (ACTUAL / ) FINAL

PREP/ QUESTIONS AND VERIFIED ANSWERS./ ALREADY

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All of the following occur during endospore germination except

Select one:

• dehydration of the cell components.
• binding of a small organic molecule to initiate germination.
• enzymes digest the endospore cortex.
• the cell grows out of its protein coats. - ----Answers----

dehydration of the cell components.

Which of the following is mismatched?

Select one:

• Gracilicutes - gram-negative cell walls
• Firmicutes - gram-positive cell walls
• Tenericutes - waxy, acid-fast cell walls
• Mendosicutes - archaea cell walls - ----Answers----

Tenericutes - waxy, acid-fast cell walls

The orderly arrangement of organisms into a hierarchy of taxa is called ______.

Select one:

• classification 1 / 4

• identification
• nomenclature
• experimentation
• biotechnology - ----Answers----classification

Burning coal produces sulfur dioxide in the atmosphere. When combined with rain that falls into bodies of water, this leads to

Select one:

• an increase in pH level of the water.
• a greater concentration of OH- ions in the water.
• a decrease in the pH level of the water.
• no change in the pH level of the water. - ----Answers----a

decrease in the pH level of the water.

The simple microscopes used by the earliest practitioners of microscopy contained which of the following?

Select one:

• Magnifying lens
• Oil-immersion lens
• Condenser
• Ocular
• Lamp - ----Answers----Magnifying lens

Satellite viruses are

Select one: 2 / 4

• also called viroids.
• dependent on other viruses for replication.
• the cause of spongiform encephalopathies.
• significant pathogens of plants. - ----Answers----

dependent on other viruses for replication.

Each of the following are electron carriers except ______.

Select one:

• NAD
• FAD
• NADP
• FADP - ----Answers----FADP

Lysogeny refers to

Select one:

• altering the host range of a virus.
• the latent state of herpes infections.
• virions exiting host cell.
• the viral genome inserting into bacterial host chromosome.
• ----Answers----the viral genome inserting into bacterial

host chromosome.

What chemical causes death in many eukaryotes because it blocks cytochrome C oxidase?

Select one: 3 / 4

• Copper
• Iron
• Cyanide
• Oxygen
• Carbon monoxide - ----Answers----Cyanide

Question text The fundamental difference between an organism's genotype and its phenotype is that

Select one:

• the genotype refers to all of the genetic material in the

organism, whereas the phenotype represents only the genetic material that is expressed into proteins.

• the phenotype refers to all of the genetic material in the

organism, whereas the genotype represents only the genetic material that is expressed into proteins.

• the genotype refers to the organism's genes and the

phenotype refers to the non-coding segments of DNA.

• the genotype refers to eukaryotic genes that contain both

introns and exons, whereas phenotype refers to bacterial DNA that has only exons. - ----Answers----the genotype refers to all of the genetic material in the organism, whereas the phenotype represents only the genetic material that is expressed into proteins.

The lipid group that serves as energy storage molecules is the ______.

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