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Biod 171 module 1 exam, Exams of Public Health

University of WalesPublic Health

Biod 171 module 1 exam Biod 171 module 1 exam Biod 171 module 1 exam

Typology: Exams

2024/2025

Available from 06/13/2025

NurseTakshif
NurseTakshif 🇬🇧

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Biod 171 module 1 exam
1. True/False. A virus is considered a microorganism.: False
2. True or False: The smallest biological unit of life is the molecule.: False
3. At a generalized level, all cells are comprised of what?: Macromolecules
A student may also answer: Proteins, Lipids, Nucleic acids and Polysaccharides but
they must answer with all four to be fully correct.
4. Proteins are formed from various combinations of of which there
are known forms.: 1. Amino acids
2. 20
5. How many amino acids are classified as being essential amino acids?: 9
6. The plasma membrane (select all that are true):
A. Restricts movement of materials in and out of the cell
B. Is often a triple layer comprised of lipids
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Biod 171 module 1 exam

  1. True/False. A virus is considered a microorganism.: False
  2. True or False: The smallest biological unit of life is the molecule.: False
  3. At a generalized level, all cells are comprised of what?: Macromolecules

A student may also answer: Proteins, Lipids, Nucleic acids and Polysaccharides but they must answer with all four to be fully correct.

  1. Proteins are formed from various combinations of of which there are known forms.: 1. Amino acids
  2. 20
  3. How many amino acids are classified as being essential amino acids?: 9
  4. The plasma membrane (select all that are true): A. Restricts movement of materials in and out of the cell B. Is often a triple layer comprised of lipids

C. Prevents essential nutrients from escaping D. Contains hydrophobic tails pointing outward: A;C

  1. Complete the following DNA strand, and indicate how many bonds are formed for each complementary pair: 3' GGTCATCG 5' 5' CC AGC 3': 3' GGTCATCG 5' 5' CCAGTAGC 3'

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

  1. True of False: The genetic material within a prokaryotic cell is contained within a membrane-enclosed region.: False
  2. How many carbon atoms are present in the monosaccharide glucose?: 6
  3. Describe the 4 basic bacterial morphologies.: Coccus (round/spherical), bacillus (rod), vibrio (curved rod) or spirillum (spiral/corkscrew).
  4. True or False: Archaea, a eukaryotic class of microorganisms, is capable of surviving harsh environments.: False

A. Mushrooms B. Bacteria C. Yeast D. Molds: A, C, D

  1. True or False: Protista retain a unicellular classification, as they are unable to form tissue layers.: True
  2. True of False. All multicellular microorganisms classified as Animalia are heterotrophic: True
  3. The function of the lysosome is (select all that apply): A. Lipid synthesis B. Protein synthesis C. To produce energy (ATP) D. Protein modification and distribution E. Waste disposal via hydrolytic enzymes: E
  4. The function of the mitochondria is (select all that apply):

A. Lipid synthesis B. Protein synthesis C. To produce energy (ATP) D. Protein modification and distribution E. Waste disposal via hydrolytic enzymes: C

  1. The combination of the cell membrane and the outer membrane is referred to as the (select all that apply):

A. Cell wall B. Capsid C. Cell envelope D. Outer leaflet: C

  1. What is the smallest biological unit of life?: Cell
  2. Define an essential amino acid.: An essential amino acid cannot be produced by the human body and as such must be take in from the environment through alternative sources (i.e) food.
  1. Microorganisms classified as Plantae obtain most of their energy by con- verting energy into energy.: Light (sunlight); chemical (sugars)
  2. True or False: A defining characteristic of Protista is the inability of colonies to form tissue layers.: True
  3. Cell walls are found in which of the following (select all that apply): A. Plants B. Fungi C. Bacteria D. Mammalian cells E. Algae: A, B, C, E
  4. The function of the ribosome is (select all that apply): A. Lipid synthesis B. Protein synthesis C. To produce energy (ATP) D. Protein modification and distribution

E. Waste disposal via hydrolytic enzymes: B

  1. KNOW PICTURE: KNOW PICTURE