Module 1 Review Portage Learning Microbiology, Exams of Microbiology

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M1: Module 1 Review

Due No due date Points 5 Questions 17 Time Limit None

Attempt History

Attempt Time Score LATEST Attempt 1 41 minutes 5 out of 5

Score for this quiz: 5 out of 5

Submitted Feb 9 at 4:09pm This attempt took 41 minutes.

Question 1^0 / 0^ pts

Your Answer: Microbiology is the study of what? Microbiology is the study of the biological processes of microbes. Microbiology is the study of microbes (microorganisms and viruses) and their biological processes.

Question 2^0 / 0^ pts

What is the smallest biological unit of life? You AnsweredYou Answered cell Correct AnswersCorrect Answers (^) A cell

Question 3^0 / 0^ pts

Your Answer: What is a macromolecule? A macromolecule is a large, complex molecule typically composed of smaller molecules or 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 AnsweredYou Answered nucleic acids, lipids, polysaccharides, proteins Correct AnswersCorrect Answers (^) Proteins, nucleic acids, lipids and carbohydrates

Question 5^0 / 0^ pts

Your Answer: What various functions do proteins have in a cell? Proteins have several functions in a cell, including acting as enzymes, helping to speed up or catalyze biochemical processes; proteins will provide structure in a cell to uphold its integrity and help move materials in or out of a cell; additionally, proteins enable movement of a cell. 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

Your Answer: What are the two major types of nucleic acids and their roles? The two major types of nucleic acids are deoxyribonucleic acid and ribonucleic acid. Both RNA and DNA are located and stored inside the nucleus of a cell. DNA is responsible for storing hereditary information whereas RNA is used to decipher the hereditary information and then synthesize this information. 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

Your Answer: What is the plasma membrane, and what is it made up of? The plasma membrane of a cell is a surrounding barrier that separates the inside of the cell from the outside environment. This plasma membrane comprises lipids, which help facilitate the movement of molecules in and out of the cell.

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

Your Answer: What are the three main components of carbohydrates? The three main components of carbohydrates are Oxygen, Hydrogen, and of course, Carbon. Carbohydrates are composed of carbon, hydrogen and oxygen atoms. Examples would include, C6H12O (glucose) C12H22O11 (sucrose) and C6H10O5 (cellulose).

Question 9^0 / 0^ pts

Your Answer: What is the primary difference between prokaryotic and eukaryotic cells? Eukaryotic cells contain a nucleus and other membrane-bound organelles, while prokaryotic cells do not contain membrane-bound organelles or a nucleus. 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

Your Answer: What are the main morphologies of bacteria? Bacteria's morphologies include vibrio, shaped like a curved rod; spirillum a corkscrew or spiralized shape; coccus, a more round or spherical shape; or a bacillus, the shape of a straight rod. Bacteria can be described as coccus (round/spherical), bacillus (rod), vibrio (curved rod) or spirillum (spiral/corkscrew).

Question 11^0 / 0^ pts

Your Answer: Which group (classification) of microbes is noted for its ability to survive under harsh conditions? Archaea 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

Your Answer: What are the four main classifications of Eukarya? Protista, Animalia, Plantae, Fungi Eukaryotic microorganisms are classified as either belonging to Animalia, Plantae, Fungi or Protista.

Question 13^0 / 0^ pts

Your Answer: Can viruses be classified as either prokaryotic or eukaryotic? No, neither. Viruses are not living and can only replicate within a host. 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

Your Answer: The lipid bilayer of the plasma membrane is composed of what? The lipid bilayer of the plasma membrane is primarily composed of amphipathic phospholipids. These phospholipids 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

Your Answer: What are the primary cellular organelles described in this module? Be sure to know the roles of each. The primary cellular organelles in this module include: Mitochondria, are known as the powerhouse of the cell by way of ATP production. Lysosomes, which are used for the disposal of waste. Golgi, where proteins are modified and distributed. Endoplasmic Reticulum, which is the site of protein synthesis. Ribosomes, which are known for their role in protein synthesis. Chloroplasts, which are found typically in plant cells only and are the site of photosynthesis. 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

Your Answer: Be able to identify the primary organelles within a cell as shown in Figures 1. (https://portagelearning.instructure.com/courses/900/pages/1-dot-3-parts-of-a-cell#fig1) , 1. (https://portagelearning.instructure.com/courses/900/pages/1-dot-3-parts-of-a-cell#fig2) and 1. (https://portagelearning.instructure.com/courses/900/pages/1-dot-3-parts-of-a-cell#fig3). Ok

Question 17^5 / 5^ pts

Your Answer: 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? Yes.