BIOD171 M1: Module 1 Biology Practice Exam with Answers (21 Solved Questions)

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BIOD 171M1: Module 1 Exam - Requires RespondusLockDown Browser + WebcamQuestion 13 / 3 ptsTrue/False. A virus is classified as a microbe.Correct!TrueAlthough 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 andviruses.FalseQuestion 23 / 3 ptsTrue or False: The smallest biological unit of life is the molecule.TrueCorrect!FalseThe smallest biological unit of life is the cell.Question 3Not yet graded / 4 ptsWhat are the four main types of macromolecules found in cells?Your Answer:Proteins, Lipids, Carbohydrates, Nucleic AcidslOMoARcPSD|13778330

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Proteins, Lipids, Nucleic Acids, CarbohydratesQuestion 4Not yet graded / 3 ptsHow many different types of amino acids are available from which to make proteins?Your Answer:2020Question 5Not yet graded / 4 ptsHow many amino acids are classified as being essential amino acids?Your Answer:99Question 6Not yet graded / 10 ptsWhere can the two major types of nucleic acids be found in the cell, and what are theirroles?Your Answer:DNA (deoxyribonucleic acid) has the hereditary information and is responsible for theinheritied characteristics in all organisms. RNA (ribonucleic acid) is responsible fordeciphering the inheritied information and using it to synthesize protein. DNA is foundin 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 iscapable of leaving the nucleus. DNA contains a vast amount of hereditary informationand is responsible for the inheritable characteristics of living organisms. RNA isresponsible for deciphering the hereditary information in DNA and using it tosynthesize proteins.Question 7Not yet graded / 10 ptslOMoARcPSD|13778330

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Complete the following RNA strand, and indicate how many bonds are formed for eachcomplementary pair:3’ GGUCAUCG 5’5’ CCAGC 3’Your Answer:3' GGUCAUCG 5'5' CCAGUAGC 3'adesine and uracil form 2 bondsguanine and cytosine form 3 bonds3’ GGUCAUCG 5’5’ CCAGUAGC 3’There are 2 bonds formed between A and U, and 3 bonds between G and C.Question 85 / 5 ptsThe plasma membrane (select all that are true):Only restricts movement of materials into the cellCorrect!Is often a bilayer comprised of lipidsCannot prevent essential nutrients from escapingCorrect!Contains hydrophobic tails pointing inwardQuestion 9Not yet graded / 5 ptsCarbon, hydrogen, and oxygen atoms come together to form what primarymacromolecule? Give an example.lOMoARcPSD|13778330

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