M1: Module 1 Review Due No due date Points 5 Questions 17 Time Limit None Attempt History LATEST Attempt Time Score Attempt 1 31 minutes 5 out of 5 Score for this quiz: 5 out of 5 Submitted Jul 27 at 8:26pm This attempt took 31 minutes. Question 1 0 / 0 pts Microbiology is the study of what? Your Answer: Microbiology is the study of biological process at the micro level. Microbiology is the study of microbes (microorganisms and viruses) and their biological processes. Question 2 0 / 0 pts This study source was downloaded by 100000756080367 from CourseHero.com on 09-14-2023 21:10:44 GMT -05:00 https://www.coursehero.com/file/210534823/BIOD-171-Module-1-Reviewdocx/ What is the smallest biological unit of life? Correct! Correct Answers A cell 0 Question 3 0 / 0 pts What is a macromolecule? Your Answer: It's a complex molecule made from smaller subunits. A macromolecule is classified as a complex molecule that is composed from smaller subunits. Question 4 0 / 0 pts What are the four main types of macromolecules? You Answered Correct Answers Proteins, nucleic acids, lipids and carbohydrates Question 5 0 / 0 pts What various functions do proteins have in a cell? Your Answer: Facilitate the movement of materials into and out of a cell Act as enzymes to speed up biological processes Help with the structure of a cell or with movement like filaments Proteins may facilitate the movement of materials in or out of a cell. Some can act as enzymes that catalyze, or speed up, biochemical processes. Others play a structural role while other proteins, such as filaments, enable movement. Question 6 0 / 0 pts What are the two major types of nucleic acids and their roles? Your Answer: The two major types are DNA and RNA. This study source was downloaded by 100000756080367 from CourseHero.com on 09-14-2023 21:10:44 GMT -05:00 https://www.coursehero.com/file/210534823/BIOD-171-Module-1-Reviewdocx/ DNA contains heredity information and is responsible for the characteristics of living organisms. RNA is responsible for deciphering hereditary information in DNA and using it to synthesize proteins. There are two major types of nucleic acids: DNA (deoxyribonucleic acid) and RNA (ribonucleic acid). Nucleic acids are chemical molecules that carry genetic information within the cell. 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. Question 7 0 / 0 pts What is the plasma membrane, and what is it made up of? Your Answer: The plasma membrane is also known as the cell membrane or cytoplasmic membrane. It is a barrier to the cell that separates the inside of a cell from the outside environment. It restricts movement into and out of the cell (water, nutrients, etc.). It allows cells to absorb the nutrients that are needed and prevents the cell from losing it's nutrients. The plasma membrane is made of lipids - hydrophobic hydrocarbons. The plasma membrane serves the cell as a surrounding barrier that separates the inside of the cell from the outside surrounding environment. The plasma membrane also restricts the movement of materials (water, nutrients, etc) either in or out of the cell, thus allowing a cells to absorb and keep what is needed (influx) while also preventing the escape (out flux) of essential nutrients. The plasma membrane is composed of lipids (hydrophobic hydrocarbons). Question 8 0 / 0 pts What are the three main components of carbohydrates? Your Answer: Monosaccharide, disaccharide, and polysaccharide Carbohydrates are composed of carbon, hydrogen and oxygen atoms. Examples would include, C6H12O6 (glucose) C12H22O11 (sucrose) and C6H10O5 (cellulose). Question 9 0 / 0 pts What is the primary difference between prokaryotic and eukaryotic cells? This study source was downloaded by 100000756080367 from CourseHero.com on 09-14-2023 21:10:44 GMT -05:00 https://www.coursehero.com/file/210534823/BIOD-171-Module-1-Reviewdocx/ Your Answer: Prokaryotic cells do not have a nucleus and can be more closely classified as a bacteria or archae. Eukaryotic cells have a nucleus and a membrane that encloses DNA in to the cell. Eukaryotic cells contain a nucleus, a membrane enclosed region within the cell that contains the genetic material. Prokaryotic cells do not have a nucleus and can be further classified as either Bacteria or Archaea. Question 10 0 / 0 pts What are the main morphologies of bacteria? Your Answer: The main morphologies are coccus (round), bacillus (rod), vibrio (curved rod), or spirillum (corkscrew). Bacteria can be described as coccus (round/spherical), bacillus (rod), vibrio (curved rod) or spirillum (spiral/corkscrew). Question 11 0 / 0 pts Which group (classification) of microbes is noted for its ability to survive under harsh conditions? Your Answer: Archaea; they can survive in high salt, acid, high temps and poor oxygen conditions. Archaea. They are able to survive in extremely harsh environmental conditions such as high salt levels, acid conditions, high temperatures and oxygen-poor conditions. Question 12 0 / 0 pts What are the four main classifications of Eukarya? Your Answer: The four main classifications are animalia, plantae, fungi and Protista. Eukaryotic microorganisms are classified as either belonging to Animalia, Plantae, Fungi or Protista. Question 13 0 / 0 pts Can viruses be classified as either prokaryotic or eukaryotic? This study source was downloaded by 100000756080367 from CourseHero.com on 09-14-2023 21:10:44 GMT -05:00 https://www.coursehero.com/file/210534823/BIOD-171-Module-1-Reviewdocx/ Your Answer: No; viruses cannot be considered prokaryotic or eukaryotic. They're not considered living and cannot replicate on their own. No. Viruses are considered neither prokaryotic nor eukaryotic. Viruses are not considered living and do not replicate on their own, meaning they must replicate within a host. Question 14 0 / 0 pts The lipid bilayer of the plasma membrane is composed of what? Your Answer: It's primarily composed of amphipathic phospholipids; they contain a polar hydrophilic head group and a non-polar hydrophobic tail region. The cell membrane is a bilayer composed primarily of amphipathic phospholipids, meaning they contain a polar hydrophilic (water loving) head group and a non-polar hydrophobic (water fearing) tail region. The lipid bilayer is situated in such a way where the non-polar tail groups face inward thus orienting the polar head groups to interact with water both outside and inside of the cell. Question 15 0 / 0 pts What are the primary cellular organelles described in this module? Be sure to know the roles of each. Your Answer: The primary cell organelles include the following; Cell membrane - surrounds cytoplasm of cell, acts as a barrier to outside environment Cell walls - additional layer surrounding cell membrane Cytoplasm - open volume in the cell Nucleus - control center of the cell Ribosomes - protein synthesis Endoplasmic Reticulum - site of protein synthesis Golgi Complex - protein modification and distribution Lysosomes - waste disposal Mitochondria - ATP Generation This study source was downloaded by 100000756080367 from CourseHero.com on 09-14-2023 21:10:44 GMT -05:00 https://www.coursehero.com/file/210534823/BIOD-171-Module-1-Reviewdocx/ Chloroplasts - site of photosynthesis, in plants only Ribosomes (protein synthesis), ER (site of protein synthesis), Golgi (protein modification and distribution), lysosomes (waste disposal), mitochondria (ATP generation) and chloroplasts (plants only; site of photosynthesis). Question 16 0 / 0 pts Be able to identify the primary organelles within a cell as shown in Figures 1.1, 1.2 and 1.3. Your Answer: I will study the organelles within a cell. Question 17 5 / 5 pts As a reminder, the questions in this review quiz are a requirement of the course and the best way to prepare for the module exam. Did you complete all questions in their entirety? Your Answer: Yes Quiz Score: This study source was downloaded by 100000756080367 from CourseHero.com on 09-14-2023 21:10:44 GMT -05:00 https://www.coursehero.com/file/210534823/BIOD-171-Module-1-Reviewdocx/ Powered by TCPDF (www.tcpdf.org) 5 out of 5
