Which of the following is not a physiological role of nucleotides? Select one: a. Allosteric regulators....
Which of the following is not a physiological role of nucleotides? Select one:
a. Allosteric regulators. b. Intermediates for biosynthetic processes. c. Components of many proteins. d. Components for coenzymes NAD, FAD, and CoA. e. Intracellular signalling molecules.
Homework Answers
Nucleotides can act as allosteric regulators ex. ATP act as an allosteric regulator of Phosphofructokinase
nucleotides also act as intermediates for biosynthetic process ATP gives energy for anabolic reactions
nucleotides are also components of coenzymes NAD nicotinamide adenine dinucleotide, FAD is Flavin adenine dinucleotide and CoA also contains one ADP and cAMP are used in intracellular signalling so the answer is C) components of protein, protein is made of only amino acids.
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Which of the following is not a physiological role of
nucleotides? Select one:
a. Allosteric regulators....
Which of the following processes is exergonic? Select one: a. metabolic conversion of an 18 carbon...
Which of the following processes is exergonic? Select one: a. metabolic conversion of an 18 carbon fatty acid to 9 molecules of Acetyl CoA b. the synthesis of glucose from lactate (gluconeogenesis) c. electron transport from FADH2 to O2 d. synthesis of proteins from amino acids e. answers A and C are both correct
1) In a biochemical reaction in which ΔH < 0 and ΔS > 0, Select one:...
1) In a biochemical reaction in which ΔH < 0 and ΔS > 0, Select one: a. the reaction is spontaneous b. the reaction is endothermic c. the reaction is endergonic d. ΔG is positive 2) NAD+ and FAD are often referred to as Select one: a. redox proteins b. polymers c. reduced dinucleotides d. electron-carrying coenzymes 3) What is [P]/[R] when ΔG = ΔG°´? Select one: a. –1 b. 0 c. 1 d. 2.3 4) For the binding reaction...
Which answer best describes a drug which is an allosteric inhibitor? Select one: a. binds to...
Which answer best describes a drug which is an allosteric inhibitor? Select one: a. binds to the binding site for the endogenous ligand and have no physiological response b. increases the binding of the endogenous ligand C. competes with the endogenous ligand on the receptor binding site d. decreases the binding of the endogenous ligand
Which of the following is NOT a physiological effect of dietary fiber? Select one: a. Lowers...
Which of the following is NOT a physiological effect of dietary fiber? Select one: a. Lowers blood cholesterol b. Increases fecal bulk O c. Delays stomach emptying d. Increases Vitamin E levels
Which if the following is a way to prevent cross-talk between signalling pathways? Select one: a....
Which if the following is a way to prevent cross-talk between signalling pathways? Select one: a. Glycolipids b. positive feedback loops c. Scaffold proteins d. Receptor degradation
The monomeric units of nucleic acids are which of these? Select one: a. Purines b. Nucleotides...
The monomeric units of nucleic acids are which of these? Select one: a. Purines b. Nucleotides c. Phosphate ions d. D-ribose or 2-deoxy-D-ribose e. Nucleosides
The rate-limiting enzyme of the pyrimidine nucleotide synthesis pathway is controlled by many different allosteric regulator...
The rate-limiting enzyme of the pyrimidine nucleotide synthesis pathway is controlled by many different allosteric regulator molecules. Which is involved in this regulation? Select one: a. UTP b. ATP c. CTP d. All of these e. None of these
the answer is not a. Which of the following is NOT a mechanism by which a...
the answer is not a.
Which of the following is NOT a mechanism by which a signaling compound is known to influence genome expression after being imported into a cell? Select one: a. Some signaling molecules directly influence the activity of regulatory proteins within the cell. b. Some signaling molecules methylate DNA sequences to silence specific genes. c. Some signaling molecules influence the activity of regulatory proteins in the cell indirectly through intermediate molecules d. Some signaling molecules are proteins...
Which of the following are general principles of metabolism? Select one: a. Fuels are degraded and...
Which of the following are general principles of metabolism? Select one: a. Fuels are degraded and large molecules are constructed step by step in a series of linked reactions b. An energy currency common to all life forms, ATP, links energy-releasing pathways with energy-requiring pathways c. The oxidation of carbon fuels powers the formation of ATP d. Although there are many metabolic pathways, a limited number of types of reactions and particular intermediates are common to many pathways e. All...
10. Which of the following components is/are key a physiological value included in the complete blood...
10. Which of the following components is/are key a physiological value included in the complete blood count (CBC test)? a. Hematocrit (Hct) d. Mean corpuscular volume (MCV) b. Hemoglobin (Hg) e. WBC differential C. All of the above included f. None of the above included 11. Which of the following statements regarding the anatomy & physiology of hematological tissue (blood) is correct? a. Plasma serves as matrix for cells c. Ectodermal origin b. A type of epithelial tissue d. Absolute...
Which answer best describes a drug which is an allosteric inhibitor? Select one: a. binds to the binding site for the endogenous ligand and have no physiological response b. increases the binding of the endogenous ligand C. competes with the endogenous ligand on the receptor binding site d. decreases the binding of the endogenous ligand
Which of the following is NOT a physiological effect of dietary fiber? Select one: a. Lowers blood cholesterol b. Increases fecal bulk O c. Delays stomach emptying d. Increases Vitamin E levels
the answer is not a.
Which of the following is NOT a mechanism by which a signaling compound is known to influence genome expression after being imported into a cell? Select one: a. Some signaling molecules directly influence the activity of regulatory proteins within the cell. b. Some signaling molecules methylate DNA sequences to silence specific genes. c. Some signaling molecules influence the activity of regulatory proteins in the cell indirectly through intermediate molecules d. Some signaling molecules are proteins...
10. Which of the following components is/are key a physiological value included in the complete blood count (CBC test)? a. Hematocrit (Hct) d. Mean corpuscular volume (MCV) b. Hemoglobin (Hg) e. WBC differential C. All of the above included f. None of the above included 11. Which of the following statements regarding the anatomy & physiology of hematological tissue (blood) is correct? a. Plasma serves as matrix for cells c. Ectodermal origin b. A type of epithelial tissue d. Absolute...
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