QUESTION 23 It's absolutely wonderful that water cannot dissolve some compounds inside every living cell. O True O False QUESTION 24 A theory is a set of facts; a hypothesis is even more support for those facts. O True O False
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A: A microscope is a tool for observing tiny objects and cells. A single lens in the light microscope…
Q: Question 6 Which of the following is false regarding cholesterol? It is trans fatty acid. It is an…
A: Cholesterol is a waxy, fat-like substance that is found in every one of the cells in your body. Your…
Q: QUESTION 19 Which of the following is not found in DNA? O a. Adenine O b. Uracil O c. Guanine O d.…
A: Introduction:- The hereditary substance in humans and almost all other animals is DNA, or…
Q: Question 1 Biotechnology is a product of modern science which started with the discovery of…
A: Introduction:- Biotechnology is the use of biology to the solution of problems and the creation of…
Q: QUESTION 78 The shorter urethra in females is one reason why urinary tract infections are more…
A: *DISCLAIMER FOR MULTIPLE* Since you have asked multiple question, we will solve the first question…
Q: QUESTION 25 When H becones an H+ ion, it: gives away an electron accepts an electron gives away a…
A: The electrons are the main component that is responsible for forming bonds between different atoms.…
Q: QUESTION 29 Every amino acid is a miniature buffer due to the 2 functional groups found in every one…
A: TRUE,COOH, and NH2 are the 2 functional groups present in all amino acids.
Q: QUESTION 2 The LIGHTER the solution the GREATER its absorbance. O True False QUESTION 3 A particular…
A: 2. The absorbtion is directly proportional to the concentration of the solution. It means if the…
Q: Question 24 is the amount of space an object takes up O volume O length mass O density
A: Matter It is thing which occupy space and have some mass.
Q: O His-Tyr Question 23 At low salt concentration, proteins are less soluble. Changing the solubility…
A: Salting out: Protein precipitation at the high salt concentration. increase in salt concentration…
Q: QUESTION 5 A small molecule will typically move faster through an electrophoresis gel than a larger…
A: Gel electrophoresis is the method of separating DNA fragments or proteins on the basis of their size…
Q: Question 8 Magnesium has 12 protons. How many électrons are in its first energy level? O a. 2 O b. 4…
A: Magnesium is a metal with 12 electrons, 12 protons and 12 neutrons. Neutrons and protons live inside…
Q: Question 1 Why is water considered "the universal solvent"? a. Water is considered the universal…
A: Water: a. It is a molecule made of two hydrogens and a central oxygen atom. b. It is the solvent of…
Q: Question 18 (1 point) A test tube is known to have simple sugars. The solution is blue after the…
A: Benedict's test is used to test the simple carbohydrates (sugars). It is used to differentiate the…
Q: Question 25 A thermometer is used to measure Donald's temperature O True O False
A: Temperature is the degree of measure of hotness or coldness of a substance.
Q: Question 7 Which of the following is a chemical property? temperature
A: Chemical properties are very much useful in the purification of a compound.
Q: QUESTION 4 Based on the iodine test (table 2), the food samples that gave a positive result…
A: Iodine test is a chemical test. In certain inorganic oxidation reduction reactions, iodine is used…
Q: Question 15 Which of the following agents used for routine hand hygiene in health care settings is…
A: Hand hygiene is also known as hand washing is the act of cleaning hands to clean dirt, soil, and…
Q: Question 33 A presumptive test is a test that is performed to verify that a substance is present.…
A: Test is used to find the presence or absence of substance in the sample.
Q: Question 29 "Special proteins called chaperones prevent newly formed protein does not prematurely…
A: CHAPERONS These are the proteins that aid in the folding of newly synthesized polypeptide chains…
Q: QUESTION 4 Branched polysaccharide in animals are used for O fuel, storage and unbranched…
A: Given: Polysaccharides are also called as Polycarbohydrates.The are the most abundant carbohydrate…
Q: Using
A: Introduction:- a. carcinogens : Carcinogens are substances, organisms, or agents that can cause…
Q: QUESTION 4 Carbon atoms can form 4 covalent bonds in either very polar or very non-polar molecules.…
A: (4) Carbon has four electrons in its valence shell.
Q: QUESTION 20 When cells growth to a point where they cover the flask surface, this condition is…
A: Cells can easily be cultured a lab using different nutrient media and optimising conditions of…
Q: Question #6 Part A. What do Serine, Threonine, and Tyrosine have in common? Part B. How would the…
A: Amino acids, are the nitrogenous compounds that are the monomeric units of proteins. In a protein…
Q: QUESTION 4 The molecule below is a nucleotide monomer. We know which nucleic acid it is a monomer of…
A: Nucleotides are macromolecules that consist of nucleoside and a phosphate group. whereas nucleoside…
Q: QUESTION 1 A dehydration reaction between 2 glucose molecules results in the formation of: 4 simple…
A: Dehydration synthesis reaction: is a reaction which involve formation of new compounds by…
Q: Question 1 Both DNA and RNA molecules are similar in that they both contain: deoxyribose O…
A: DNA - Deoxyribonucleic acid RNA - Ribonucleic acid DNA act as a genetic material. RNA can be…
Q: Question 2 of 10 Which of the following is an example of evaporation? O A. A towel dries after being…
A: Evaporation is the cycle by which water changes from a fluid to a gas or fume. Dissipation is the…
Q: Question 1 of 10 Which combination of servings is likely to provide the widest variety of vitamins…
A: Vitamins and Minerals: Vitamins are organic substances that are produced from plants and animals…
Q: QUESTION 9 What chemical property of a water molecule makes it a good solvent? O adhesiveness O high…
A: A solvent is a substance in which a solute dissolves and creates a solution. Solvents are usually…
Q: Question 18 What is the function of an HDL particle? Question 18 options: It is “good”…
A: There are mainly two types of cholesterol:- high-density lipoprotein (HDL) and low-density…
Q: QUESTION 43 Health effects of this biomagnifier include: carcinogenic, decreased immune response,…
A: 43)PCB is involved in endocrine disruptors. These shows impact on thyroid and reproductive organ.…
Q: QUESTION 30 Water's high specific heat is due to the fact that: water is more dense in its liquid…
A: 30 ) Answer is option D. Waters high specific heat capacity is due to the hydrogen bonds between…
Q: Question 3. The nutrient broth is a basic media used for growing a broad variety of microorganisms…
A: Experiments are crucial in carrying out research. They are conducted to achieve a result, which…
Q: Question 5 True/False Question: Cholesterol is the main storage form of lipids in plants and anmals.…
A: Lipids are stored in the plant and animals so that can be broken down when there is demand of energy…
Q: Question 29 A client was hospitalized with a foot wound that was healing poorly. The wound was the…
A: Vitamins and minerals play important role in growth and maintenance of health. There are some…
Q: Question 6 Biological trash containing live organisms must be before disposing O Diluted with…
A: Biological wastes contain biohazardous material such as live microbes or live cells (mammalian or…
Q: QUESTION 1 An atom with 7 protons and7 electrons can form three bonds with other atoms. O True O…
A: Elements are the simplest substance that can not be further broken down into substances. Each and…
Q: Question 44 You learned about the Bio Safety Level (BSL) ccategories in Microbiology Lab, which of…
A: Biosafety is basically the application of conditions under containment under which the manipulation…
Q: Question 3 Which of the following is(are) classified as true chemical bonds? O a. hydrogen only b.…
A: Chemical bond A chemical bond is a attractive force between two atom which results in the formation…
Q: Both cellulose and starch are long polymers made up thousands of glucose molecules. Yet humans can…
A: Cellulose and starch are two very similar polymers made up of same glucose repeat units, monomers,…
Q: Question 26 The removal of a phosphate from cytidine yields the cytosine base. A True B) False…
A: DNA known as deoxyribonucleic acid is a molecule which is responsible for the transmission and…
Q: QUESTION 64 When transferring 0.8 mL of a chemical from its source to a test tube, which of the…
A: There are a variety of instruments that are used in laboratories to transfer liquid from one place…
Q: QUESTION 9 Select all of the shared characteristics of soap and phospholipids. O Hydrophilic head…
A: "Phospholipids (PL) are a class of lipids whose molecule has a phosphate-containing hydrophilic"…
Q: Question 9 Rivers have never caught on fire before. O True False
A: Rivers have never caught on fire before. O True O False
Q: Question 33 It is extremely important for swabbed patient's samples to be collected in…
A: There are different types of media that are used in cell culture or microbial culture. Some are…
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- UNIT 1 24/01/2022 QUESTION 1 1.1 Dehne each of the following terma: 1.1.1 #tom 1.1.3 olement 1.12 molecule 1.1.4 compound 12 Explain the struckure of watar with reference to the terms defined in 1.1, QUESTION 2 Name the SEVEN basic charactertstics of life that a tving organiam dlaplays. QUESTION 3 Distingulsh batwsen: 3.1 a cail 32 fissue. 3.3 an organ QUESTION 4 Define the following torms and give two examples of each: 4.1 Inorganic compounds 4.2 organic compounds QUESTION 5 Study the following diagrams and answer the questions that follow giucose OAZO amina acid 5.1 Identify the type of brganlc compound represented by A. B and C, respectively. 6.2 Name the bullding blocks that compound C la composed of. 5.3 Identify the type of bond Indicated by X. Copyright OThe Anrwer; Photocopying of this matertal L lilegalpus The most abundant substance in living systems is: 0 proteins O DNA water glucose Question 46 Which of the following is NOT a common component of biological molecules? O carbon O phosphorus Ochlorine O oxygenQUESTION 1 In Chapter 1 of Astrobiology, A Very Short Introduction, the author talks about some special properties of water. Which of these properties is important to the formation of life on Earth? O a. It acts as a stable medium for biochemical processes Ob. Oils separate in water, allowing for the formation of cell membranes Oc. Ice is less dense than ligquid water, allowing large bodies of water to freeze from the top to bottom O d. All of these above OUESTION 2
- QUESTION 5 How long is an a-helix that contains 36 amino acid residues? 6.0 nm 5.4 nm 1.8 nm 4.8 nm QUESTION 6 entropy gain in ES formation. O True O False QUESTION 7 All enzymes are proteins O True O False OUESTION & Click Save and Submit to save and submit. Click Save All Answers to save all answers. 78 F Mos 1OQUESTION 20 Of the components of the cell membrane, transmémbranous proteins and flagella are made of polymers but the phospholipids and cholesterol are not. O True O False QUESTION 21 Transmembranous proteins have both hydrophobic and hydrophilic functional groups. O True O False QUESTION 22 Fatty acids have both hydrophobic and hydrophilic functional groups. O True O FalseQuestion 1: A Small organic mdecule_containimg both an -NH2 group Oroup is čalled a Cm) [x]; t serves as the building block of proteins. and a - COOH Question 2: A [x] forms the structural basis of all cell membranes it is composed of a double layer of phas pholipid mokcules packed tegether in sheet. Buestion 3: A[x] can be a it has a general formula of lCH, 0)n Inoromer of complex corbohydrates and pely saccarides
- Question 21 P Paramecium and Osmosis Watch later Share Watch on VouTube Why do paramecia pump water out? Because they live in an environment that is filled with O hypotonic solution O hypertonic solution O isotonic solutionQUESTION 8 Which of the following neutral atoms contains six (6) Valence electrons? Nitrogen, atomic number 7 Carbon, atomic number 6 Phosphorus, atomic number 15 Oxygen, atomic number 8 QUESTION 9 fivo (E Yalence electrons)Question 8 A solution with more OH- ions than H+ ions would be O basic O acidic O neutral Question 9 Carbonic acid in the bloodstream would be considered a O buffer O acid O base
- Question 2 Which one of the following statements about hydrogen bonds is FALSE? hydrogen bonds are the strongest type of bonds. beta sheets in proteins are formed from extensive hydrogen bonding. O hydrogen bonds stabilize the tertiary structure of proteins. O hydrogen bonds are absent in the primary structure of proteins.Question 26 adjacent to each other. A hydrogen bond can form between two oxygen atoms O negative charges O a hydrogen atom and an oxygen atom two hydrogen atoms Question 27 A solution with a pH of 2 than a solution with a pH of 8. has less H+ O is more concentrated O has more OH- has more H+ MacBook Air 80 F1 F2 F3 F4 DII F5 F6 F7 F8 @ $ 4 & * 3 6. 7 8 9. EQuestion 43 Which of the following is NOT a property of water? O exhibit cohesion O Ice is less dense than water water molecules are polar water molecules require a small input of energy to raise the temperature O high heat of vaporization Question 44 The first law of Thermodynamics state that: O energy must come in the form of a three-prong outlet the ultimate source of energy in our universe is the sun energy can be created and destroyed in a vacuum O energy can neither be created nor destroyed