QUESTION 12 Some bacteria are metabolically active in hot springs because O A. their enzymes have high optimal temperatures. O B. they are able to maintain a cooler internal temperature. OC. they use molecules other than proteins or RNAS as their main catalysts. O D. their enzymes are completely insensitive to temperature.

Q: What did Kochâ s experiment prove? O Microoganisms causes diseases. O Microoganisms contain DNA.…

A: Microrganism that causes diseases

Q: In Chapter 1 of Astrobiology, A Very Short Introduction, the author talks about some special…

A: 1) It acts as a stable medium for biochemical processes. Water’s ability to dissolve most…

Q: Which types) of biomolecules can be represented by the sequence ACGGTGDACT considering only the 20…

A: The proteins are the biomolecules which plays an important role in the cell. They are made up of…

Q: Protein biosynthesis in all cells utilizes energy driving the assembly process provided by _____…

A: protein biosynthesis in all cells utilizes energy driving the assembly process provided by GTP…

Q: Question 24 Which answer choice represents the largest percentage, by weight, of all macromolecules…

A: Escherichia coli is small, Gram-negative bacteria that contains a peptidoglycan layer of 7-8 nm…

Q: QUESTION 13 The corresponding strands of DNA are said to be? O a. Complimentary O b. Oppositely…

A: Watson and crick's model of DNA structure is the most widely accepted model. DNA is the long polymer…

Q: Question 7 of 13 Fill in the blanks: Write C if only statement A is correct, Hif only statement B is…

A: Enzymes are proteins with capability to increase the rate of a biochemical reaction. The…

Q: Question 4 The RNA molecules are said to be less stable than DNA molecules because aside from the…

A: Sol: There are two types of nucleic acid molecules  1. DNA (Deoxyribonucleic acid) and 2. RNA…

Q: Prokaryotes are highly successful biological organisms found throughout the world. Their success may…

A: Prokaryotes are single celled organisms that lacks a proper nucleus and any other membrane bound…

Q: A biologist wants to test the rate of absorption into several different types of cells, including…

A: Respiration results in the production of carbon dioxide. Another byproduct of respiration is…

Q: You inject a large fluorescent dye with a molecular weight >10,000 Da into a cell that is connected…

A: Gap junctions are intercellular channels that allow direct communication between the cytoplasm of…

Q: What happens to the activity of an allosteric enzyme if an allosteric inhibitor binds the alloster…

A: Allosteric mode of inhibition is also called non-competitive inhibition where an inhibitor…

Q: Fill in the blanks: What occurred in the reaction, Sn4+ → Sn²+ A. oxidation B. reduction B.…

A:

Q: Which statement is FALSE? O a. Lignin comprises the highest percentage of dry mass of cell wall O b.…

A: A cell wall is an external structural layer that surrounds some types of cells. It may be hard,…

Q: Question 88 How do DNA and RNA differ? O DNA is double stranded while RNA is single stranded. all…

A: DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) are two types of nucleic acids found in…

Q: Question 12 Which of the following are true about the properties of enzymes? (select all that apply)…

A: Enzymes are proteins that act as biological catalysts by accelerating chemical reactions.

Q: Question 18 Ribosomes are made up how much RNA component? (A) 50% в) 1/3 © 2/4 D) 2/3

A: Ribosomes are the organelles present in cells which are made from RNA and protein. Ribosomes are the…

Q: A transition mutation would be replacing A by

A: Transition mutation is a process in molecular biology and genetics where it refers to point in…

Q: QUESTION 4 Lipids are hydrophobic molecules and have no charge. If they are loaded into a gel, and…

A: Gel electrophoresis is a technique in molecular biology where different samples are separated based…

Q: Some point mutations cause a change in amino acid sequence but nonetheless may have little to no…

A: option f is correct . This is  because each group of amino acid belong to same category means . If…

Q: 38. Do I want to give the 3 liters of water patient a hypotonic, isotonic, or hypertonic solution to…

A: Tonicity is defined as the difference in osmotic pressure between two liquids. The phenomenon of…

Q: Which of the following best summarizes the relationship between condensation reactions and…

A: All living cells undergo certain chemical reactions to Work properly, those can be, catabolic…

Q: Question 28 Extraction of lipids from membranes requires: A SDS; B Distilled water. |C Solvents; D…

A: Lipids present in the membrane are of varied nature such as phospholipids, sphingolipids and…

Q: Oxidation and reduction reactions are chemical processes that result in a gain or loss of:

A: Oxidation is the chemical reaction which occurs when the reactive species gains the electrons. This…

Q: What type of bond links amino acids together as proteins are built? A. ionic O B. peptide O C. polar…

A: The proteins are the biomolecules that are found in all organisms. The monomers of the proteins are…

Q: state. At low temperatures, lipid bilayers are in the a. closed b. So C. Open С. O d. Ld

A: The lipid bilayer is composed of two lipid layers arranged in such a fashion that their hydrophobic…

Q: QUESTION 5 The body's ability to heal itself after a cut would be.... O A Metabolism OB. A catabolic…

A: The question is asking about the process through which the body heals itself after a cut. This…

Q: QUESTION 8 What are proteins made of? O A. nucleotides O B. DNA OC. polymerase D. amino acids

A: Proteins are the macromolecules that are the building blocks of the body. Based on their structure…

Q: According to the Arrenhius theory, an acid is:   a. a substance that forms hydroxide ions   b. a…

A: Arrhenius theory gives us the concept of acid and base. This theory is given based on the…

Q: Question 2. Which of the following is a molecule formed by a dehydration synthesis reaction? A.…

A:

Q: It is an essential amino acid with a nonpolar side chain O arginine O proline tryptophan O threonine…

A: Aminoacids are the building blocks of proteins with polar and non polar side chains. Amino acids are…

Q: Question 1: Part a: Graph Y = [I] / (Ki + [I]) as a function of [I] and Ki = 2 µM; and describe the…

A: Part a:The equation Y = [I] / (Ki + [I]) represents a fractional saturation curve, often used in…

Q: А In the image above, the substance indicated as C is a(n) O a. substrate O b. regulatory molecule…

A: Enzymes are basically the proteins that speed up the process of a biological reactions. These are…

Q: just been served a grilled piece of chicken with the skin intact. Which of the following…

A: Introduction :- Protein can be present in muscle, bone, skin, hair, and nearly every other organ or…

Q: QUESTION 6 On a daily basis, Thomas throws things in the toilet, puts his toys in the trash, and…

A: The objective of the question is to identify the type of reactions, according to Piaget's theory of…

Q: Carbon has several isotopes including 12C and 14C. These isotopes differ in the number of: O a.…

A: When two or more atoms of same element have the same atomic number (number of protons or number of…

Q: o isolate DNA from cells, you must disrupt the cell Therefore, you treated your cells with a lysis…

A: Cell lysis or cell disturbance is a strategy wherein the external limit or cell film is separated or…

Pathogenicity

Infection and Transmission

The infections are generated by the pathogenic organisms present in the environment. They maintain the capacity to invade a host body and establish colonies. A disease caused by such infectious agents is called a communicable disease or transmissible disease. These diseases spread through diverse means including blood, food, water, air, or vectors.