12. What type of transport must be used to generate a concentration gradient acr
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12. What type of transport must be used to generate a concentration gradient across a membrane? Consider the chemical reaction demonstrated below Question 18-19 A) Simple diffusion B) Facilitated diffusion through a carrier C) Active transport through a protein D) Bulk transport E) Any of these can be used to generate a gradient 18. What type of bond is being formed in this reactio signaling molecules, including epinephrine and melanin, through A) Hydrogen bond between atoms in the backbon B) Covalent bond between atoms in the backbone 13. Tyrosine can be used to produce five different critical different sets of chemical reactions. What type of molecule Covalent bond between atoms in the side chain regulates how tyrosine is metabolized to form these different signaling molecules? C) D) Hydrogen bond between nitrogenous bases A) Membrane transport protein B) mRNA 19. How is the reaction depicted above catalyzed? A) By tRNA, acting as an enzyme Ribosome D) Enzyme E) Membrane receptor B) By a ribosome, acting as an enzyme C) By an enzyme D) This reaction doesn't require a catalyst 14. What structural feature differs between each of the 20 amino A) Nitrogenous base B) Hydrophilic bead C) Side chain/t-group D) Backbone E) Fatty acid 20. An aquaporin subunit is folding to develop tertiary s What part of the polypeptide monomers in the aquapori subunits will undergo interactions with each other and th surrounding solution to determine the final three dimensi structure of the channel? The amino group in the backbone B) A) The functional groups in the nitrogenous base C) 15. What process is depicted in the image below? The functional groups in the side chain/R-group The carbon skeleton in the backbone D) E) The functional groups only in the active site B) Translation C) Bulk transport D) DNA replication E) Protein folding Consider the image below, in which enzymes are large gra structures (like pacman) and substrates are small gray diar for Question 21-22 Sce 21. In which scenario are the enzymes saturated? A) Scenario 1 B) Scenario 2 C) Scenario 3 D) The enzymes are saturated in 16. What is represented by the small black circles in this image? A) Nucleotides forming an mRNA molecule B) Nucleotides forming a DNA molecule C) Amino acids forming an mRNA molecule D) Nacleotides forming a polypeptide E Amino acids forming a polypeptide scenario 2 and 3 E) The enzymes are saturated in all three scenarios F) The enzymes are not saturated in any of these scenarios 17. Which of the images below most accurately depicts facilitated diffusion? 22. How would the addition of enzymes and substrates affect initial reaction rate in Scenario 2? A) It would increase with more .B) It would decrease with more enzymes enzymes OR more substrates more substrates C) It would stay the same with more enzy but increase with more substrates It would increase with more stay the same with more D) enzymes,Explanation / Answer
12.E))Any of these transport would generate a concentration gradient.Either it is from high concentration to low concentration or it may be against the concentration gradient but a concentration gradient would be generated.
13.E))Due to the membrane receptor tyrosine is regulated to produce different signalling molecules.
14.C)) side chain/ r group is different among each of the 20 amino acids.Some are hydrophobic in nature while others are hydrophilic and some are chiral while glycine is achiral.
15.B Translation is being depicted in this figure.As tarna being shown in the figure which picks a specific amino acid and helps in the synthesis of protein.
16.E amino acid forming a polypeptide as tRNA is present in the figure and the process of translation is seen.
17.The figure A and B depicts the facilitated diffusion where the ions are being transported with the help of the transporter but without investing ATP.
Rest all the questions on the right side couldn't be answered as I can't read the full question.
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