Latest Microbiology Module

Question 1

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Question 2

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Question 3 Not yet graded / 4 pts BIOD 171 Q & A

(Latest 2023 / 2024) Microbiology Module

1-6 Exams and Lab 1-9 Exams Portage Learning

BIOD 171

M1: Module 1 Exam - Requires Respondus LockDown Browser + Webcam

True/False. A virus is classified as a microbe.

True

Although viruses are not living and as such are not considered microorganisms, they can, however, be classified as microbes, a more general term that includes microorganisms and viruses.

False

True or False: The smallest biological unit of life is the molecule.

True

False

The smallest biological unit of life is the cell.

What are the four main types of macromolecules found in cells?

Your Answer: 1 / 4

Question 4 Not yet graded / 3 pts Question 5 Not yet graded / 4 pts Question 6 Not yet graded / 10 pts Question 7 Not yet graded / 10 pts Proteins, Lipids, Carbohydrates, Nucleic Acids Proteins, Lipids, Nucleic Acids, Carbohydrates

How many different types of amino acids are available from which to make proteins?

Your Answer:

20 20

How many amino acids are classified as being essential amino acids?

Your Answer:

9 9

Where can the two major types of nucleic acids be found in the cell, and what are their roles?

Your Answer:

DNA (deoxyribonucleic acid) has the hereditary information and is responsible for the inheritied characteristics in all organisms. RNA (ribonucleic acid) is responsible for deciphering the inheritied information and using it to synthesize protein. DNA is found in the nucleus, mitochondria, and chloroplast. RNA is found in the nucleus, cytoplasm, and ribosomes.While both DNA and RNA can be found in the nucleus (center of the cell), only RNA is capable of leaving the nucleus. DNA contains a vast amount of hereditary information and is responsible for the inheritable characteristics of living organisms. RNA is responsible for deciphering the hereditary information in DNA and using it to synthesize proteins.

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Question 8

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Question 9 Not yet graded / 5 pts Complete the following RNA strand, and indicate how many bonds are formed for each

complementary pair:

3’ GGUCAUCG 5’

5’ CC AGC 3’

Your Answer:

3' GGUCAUCG 5'

5' CCAGUAGC 3'

adesine and uracil form 2 bonds guanine and cytosine form 3 bonds

3’ GGUCAUCG 5’

5’ CCAGUAGC 3’

There are 2 bonds formed between A and U, and 3 bonds between G and C.

The plasma membrane (select all that are true):

Only restricts movement of materials into the cell

Is often a bilayer comprised of lipids

Cannot prevent essential nutrients from escaping

Contains hydrophobic tails pointing inward

Carbon, hydrogen, and oxygen atoms come together to form what primary macromolecule? Give an example. 3 / 4

Question 10

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Question 11 Not yet graded / 4 pts Question 12

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Your Answer:

Caarbohydrates, Glucose Carbohydrates.Any sugar is acceptable: Glucose, sucrose, fructose, galactose, lactose, maltose, etc.

Also options: Starch, glycogen, cellulose, or chitin

True of False: The genetic material within a prokaryotic cell is contained within a membrane-enclosed region.

True

False

Only eukaryotic cells contain its genetic material within a nucleus.

Describe the 4 basic bacterial morphologies.

Your Answer:

Coccus- round/spherical Bacillus- rod Vibrio-curved rod Spirillum- spiral/corkscrew Coccus (round/spherical), bacillus (rod), vibrio (curved rod) or spirillum (spiral/corkscrew).

True or False: Archaea is noted for its ability to survive under harsh conditions.

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