Metabolism is best defined as a collection of Ocellular processes that activate cell division. biochemical reactions that convert mechanical work into energy. O enzymes that convert metabolites into pathways. Obiochemical reactions that convert chemical energy into work.
Q: Which of the following is a ketone body? O Pyruvate Acetoacetic acid O Lactic acid O Glycogen
A: Ketone bodies contain ketone groups and are produced in the liver from fatty acids. The process of…
Q: Choose below the correct order of the oxygen binding proteins from lowest to highest affinity for…
A: Hemoglobin is a tetrameric oxygen transport protein found in erythrocytes, on the contrary,…
Q: The reaction catalyzed by citrate syn- thase, shown on the right, is the first step of the TCA…
A: In glycolysis, a 6-carbon molecule of glucose-6-phosphate is broken down into 3-carbon pyruvate. It…
Q: A Class Il aminoacyl-tRNA synthetase installs the formyl-methionine on tRNAMet in bacteria. A…
A: As per the central dogma of molecular biology, genetic information is stored in the DNA. The genetic…
Q: A sample of yeast extract has been analyzed of its invertase activity. The effect of temperature on…
A: Invertase is the enzyme that catalyze the hydrolysis of sucrose in fructose and glucose. Sucrose is…
Q: Biochemistry Plz answer these 2 question 1. How to differentiate between beta-amylase from alpha…
A: “Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: 9) Covalent modification is a versatile tool used to regulate enzyme activity. Discuss three…
A: Enzyme regulation by Covalent transformations is by altering the synthesized proteins either by…
Q: each a-ß pair are held together by disulfide bonds, these dimers are held together by hydrogen bonds…
A: Hemoglobin is an oxygen carrying protein in the body. A hemoglobin molecule is composed of four…
Q: In biochemistry, what form of iron, ferric or ferrous, is most readily absorbed by the body? What…
A: Iron is a trace element that is essential for the body. Hemoglobin is a protein that transports…
Q: 7. WHAT IS A PHOSPHODIESTER BOND? WHERE CAN IT BE FOUND? 8. GIVE AT LEAST 10 CARBOXYLIC ACIDS THAT…
A: Biomolecules are composed of monomeric units that are joined together through specific bonds.…
Q: QUESTION 21 The causes of excess ketone bodies in the urine include all of the following EXCEPT…
A: The excess ketone bodies in the urine causes ketonuria also called as ketoaciduria. Ketones are…
Q: 1. Draw the structure of the polyribonucleotide UAGCCUG. 2. Draw the structure of the…
A: Nucleotides are phosphoric acid esters of nucleosides (pentose sugar containing a nitrogenous base).…
Q: Provide the name of the following nitrogen-containing heterocyclic base. Z-I N A NH TU
A: The four major classes of biological macromolecules are nucleic acids, proteins, lipids and…
Q: 5. Describe the role of His in the catalytic mechanism shown.
A: Enzymes are highly specialized proteins that have extraordinary catalytic power, greater than that…
Q: Bacteria and other microbes can be used to "clean up" an oil spill by breaking down oil into carbon…
A: Nucleic acids (DNA or RNA) are formed by four types of nucleotides. They are adenine, guanine…
Q: NH4+ is transported indirectly in the body. Why can’t free NH4+ be transported in the blood? How is…
A: NH4+ is the waste product formed from the amino acids on their catabolism. It must be transported…
Q: The heme group is a prosthetic group in: OA) Fetal hemoglobin B) Adult hemoglobin C) Myoglobin D) a…
A: Hemoglobin and myoglobin are globular proteins that have the ability to bind molecular oxygen.…
Q: Which of these is not a reducing sugar
A: Carbohydrates are polyhydroxy aldehydes or ketones. They can be classified as monosaccharides,…
Q: If glucose labeled with 14C in C-3 were metabolized by glycolysis, pyruvate would be labeled in: a.…
A: Glycolysis is the metabolic pathway by which 6 carbon glucose is converted into 3 carbon pyruvate in…
Q: Which of the following is the distinguishing factor of a protein? The backbone of the protein chain…
A: Proteins are macromolecules which is consist of different sequences of amino acids. Proteins are…
Q: There are numerous methods for sequencing DNA, including classical Sanger sequencing, automated…
A: The sequencing of DNA can be done using various approaches ranging from conventional Sanger…
Q: The ff: table showed data of enzyme catalytic reaction. The rate of reaction (v) decreased with the…
A: Inhibitor constant (Ki ) is the equilibrium dissociation constant of the Enzyme-Inhibitor complex…
Q: Glycogenin is a homodimer of 37 kDa subunits. (Homodimer means identical subunits of type a that…
A: Glycogenin: It is a transferase that produces glycogen, which is a crucial type of glucose storage…
Q: A sample of yeast extract has been analyzed of its invertase activity. The effect of temperature on…
A: Invertase is the enzyme that catalyze the hydrolysis of sucrose in fructose and glucose. Sucrose is…
Q: Glycolysis is the process by which energy is harvested from glucose by living things. Several of the…
A: In a general reaction such as: aA + bB ⇌ cC + dD At equilibrium (steady state), the concentration of…
Q: When looking at a double helix what are the names of the different grouves?
A: Double helix is a structure in which two helical structures are wind over each other. For examples,…
Q: One of your colleagues has obtained a sample of muscle phosphorylase b that is known to be…
A: Glycogen is storage-type homopolysaccharides that contain two types of glucose polymers: amylose:…
Q: Which of these is NOT true of nucleosomes? A. Some post-translational modifications to histone…
A: Nucleosome is the basic subunit of chromatin. It is the basic unit of DNA packaging. Nucleosomes…
Q: 3. Consider the reaction: H3C-(CH₂) H H C—C—C—SCOA HH H3C-(CH₂) a. What kind of reaction is being…
A: The given molecule is a fatty acyl CoA. Fatty acids are highly reduced and provide energy in the…
Q: A/client plans to go foreah10-mile rum, but they become fatigued aftein mites, so they stop: What is…
A: Cellular respiration is a collection of three metabolic pathways that generate ATP the energy…
Q: Glycogenesis occurs in both muscle and liver. Select one: O True O False Glycogen is released from…
A: Glycogen is storage-type homopolysaccharide that contain two types of glucose polymers: amylose:…
Q: Describe the four levels of protein in great depth. Desrcibe how protein structure may affect…
A: Proteins are biomolecules composed of amino acids. Amino acids are joined together through peptide…
Q: single-substrate reaction E+SESE+P.7 nditions: [S] > Km- ent with the condition that it describes.…
A: .
Q: Classify each phrase as describing an enzyme, an active site, or a substrate. Enzyme may be a…
A: At physiological conditions within the cells the biochemical reactions do not occur at appreciable…
Q: Uncouplers of oxidative phosphorylation are all expect: Select one: O a. thermogenin O b.…
A: INTRODUCTION: (Oxidative phosphorylation) The process by which ATP is formed as a result of the…
Q: Provide the name of the following nitrogen-containing heterocyclic base.
A: DNA/RNA are nucleic acids, the molecules responsible for carrying genetic information from one…
Q: Choose the best answers for each missing word from the list below. ____ regulated by ATP, Aspartate…
A: Enzymes are proteins found in the cell, these are bio catalysts that speed up the reaction without…
Q: 3. Question from Lehninger...describe the common structural features and the differences for each of…
A: Carbohydrates or carbs are maconutrient consisting of Carbon, hydrogen and oxygen atoms. They are…
Q: in triacylglycerol mobilization, triacylglycerol molecules is activated by: phosphorylation…
A: Triacylglycerol are esters of fatty acid and glycerol. Triacylglycerol, as the name indicates,…
Q: Multiple choice correct answer and explain every point 2. The factors that contribute to the…
A: Rate of reaction is speed of any chemical or biochemical reaction at which product is formed or…
Q: Summarize the background information about the enzyme b-galactosidase ,protein purification in…
A: Enzymes are biological catalysts that increase the rate of a biochemical reaction. Enzymes do not…
Q: The covalent catalytic mechanism of an enzyme depends on a single active site Cys residue with a…
A: Covalent catalysis is a type of enzymatic reaction mechanism that involves the formation of covalent…
Q: ATP is a source of free energy that drives unfavorable reactions. Which of the processes are coupled…
A: The free energy changes in chemical reactions are denoted by ΔG. ∆G = ∆H − T∆S where ∆H is the…
Q: A new protein is discovered that contains a pleckstrin homology domain. Which of the following…
A: Pleckstrin homology domain is a domain in protein and is made up of nearly 120 amino acids. It is…
Q: 1. Draw the open-chain form for each of the following monosaccharides. CH OH HO OH HOCH₂ он HO 0. он…
A: Monosaccharides are represented in two forms-the cyclic form and the open form. The open form is…
Q: 3 Consider the reaction shown below and answer the questions that follow. HO-P-O-CH он HN DH H X…
A: DNA (deoxyribonucleic acid) is a type of nucleic acid which is composed of deoxyribonucleotides.…
Q: 1. Describe the role of Cys in the catalytic mechanism shown. 2. Describe/predict the…
A: Enzymes are highly specialized proteins that have extraordinary catalytic power, greater than that…
Q: 1) A ligand-binding protein showing negative homotropic cooperativity? a) should give an nH value…
A: Cooperativity or cooperative binding occurs when binding of one molecule influences the affinity of…
Q: Qno1 In flourences why quenching occurred? Solve it steps by steps. Notes: Reasons explanation…
A: Spectroscopy is the analytical method. Spectroscopy is the study of the absorption and emission of…
Q: Briefly describe the role and location of each cofactor/coenzyme involved in the pyruvate…
A: Pyruvate is the end product of glycolysis. Under aerobic conditions, pyruvate is oxidised into…
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- Which of the following statements is not true? Metabolic pathways _____. a. occur in a stepwise series of chemical reactions b. are speeded up by enzymes c. may break down or assemble molecules d. always produce energy (such as ATP)Which of the following statements is NOT true? None of the other four answers (all are true) The energy required to cause a chemical reaction to occur is called the activation energy Decomposition (degradation, catabolic) reactions are usually endergonic Chemical reactions in living cells are catalyzed by enzymes Enzymes increase the probability that a chemical reaction will take place by lowering the activation energyWhich of the following describes the critical role that ATP plays in cellular metabolism? ATP serves an energy shuttle in the cell, coupling exergonic anf exergonic reactions. The terminal phosphate group of ATP is attached by a particular strong covalent bond that releases extra energy when broken. It is one of the four building blocks for RNA synthesis. Hydrolysis of ATP provides energy to drive exergonic reactions in the cell.
- Which of the following statement is FALSE about enzymes? Enzymes are unconsumed during a biochemical reaction. Enzymes' denaturation cannot affect its biological activity. Enzymes speed up the rates of a biochemical reaction by lowering its activation energy. Enzymes do not alter the position of the equilibrium.Which of the following is NOT true about enzymes? Enzyme inhibitors interact reversibly or irreversibly with an enzyme to alter its Km and /or Vmax values. Enzymes typically act under milder conditions of temperature and pH than non-enzyme chemical catalysts. Zymogens are the inactive precursors of enzyme. Nucleophilic groups can catalyze reactions through the transient formation of covalent bonds with the substrate. Transition state stabilization can significantly increase the activation energy for a reaction.Another of the six enzyme classes is which of the following? enzymes catalyze. These classes include the transferases, isomerases, and ligases. All enzymes can be categorized in one of six major classes based on the reactions the proteases kinases hydrolases phosphatases endonucleases An important factor that influences the rate of a biochemical reaction is the temperature. Raising the temperature of a biochemical reaction has which effect upon the kinetics of the reaction? a) b) c) d) e) increases the free energy of the reactants increases the free energy of the transition state decreases the free energy of the reactants decreases the free energy of the transition state decreases the free energy of the products
- Sandra is a 30-year-old woman. After medical images and blood tests, Sandra's mother has just been diagnosed with breast cancer. Her mother's mother died of breast cancer several years ago. Should Sandra be concerned that she might be at higher risk for breast cancer herself? O Yes. While there does not seem to be a genetic link with breast cancer, she has been exposed to the same environmental factors as the rest of her family Yes. Some forms of breast cancer have been linked to a gene mutation which she may have inherited from her mother's side of the family O No. The causes breast cancer have not been completely identified so she is probably at no greater risk than any other woman in the population O No. Detection of and treatments for breast cancer have improved so dramatically in recent years that it is unlikely she would develop breast cancerhich of the following are advantages of quaternary structure? Choose all correct nswers 1) The genes may be for single subunits, rather than requirement for transcription and translation of giant sequences 2) Subunit construction may provide the structural basis for protein regulation 3) Multi-subunit proteins are more water soluble than single subunit proteins of the same size 4) Defects in protein synthesis may be fixed at the subunit level, rather than giant polypeptide level 5) May have multiple active sites - one on each subunitWhich of the following is NOT true about metabolic pathways in general? They can be anabolic or catabolic They can be both energy-releasing (exergonic) and energy-requiring (endergonic) They are often made up of a series of chemical reactions They often have multiple different enzymes working in the same pathway Each metabolic pathway is entirely separate and does not interact or connect at all with other metabolic pathways
- Enzymes have all the following characteristics except: a. they act as biological catalysts b. they are proteins c. they carry out random chemical reactions d. they convert substrates into products e. they can cause genetic diseaseWhich of the following is NOT true about enzymes? Enzymes are proteins Enzymes raise the activation energy of a chemical reaction Enzymes help a chemical reaction to occur more quickly Enzymes have an active site Enzymes may be controlled by feedback inhibitionWhich of the following does NOT describe enzymes? have primary, secondary, tertiary, and sometimes quaternary structure can increase the rate of chemical reactions contain molecules that have amino and carboxyl groups are chemically changed during their participation in chemical reactions subunits are joined by peptide bonds