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WorksheetsEnzymes and Central Dogma
Total questions: 15
Worksheet time: 6mins
Which of the following types of RNAs serves as template for the amino acids sequence being synthesized.
tRNA
rRNA
snRNA
mRNA
All of the following statements are correct regarding enzymes, EXCEPT:
Enzymes are Catalysts
Enzyme is usually a protein
Enzyme is consumed during chemical reaction
Enzyme hastens chemical reactions
Apoenzyme plu cofactor is called?
Holoenzyme
Coenzyme
Simple Enzyme
Conjugated Enzyme
Each end of the DNA double helix contains the 5 ends of one strand and the 3 end of the other strand, this statement describes what characteristics of the DNA structures?
Base Pairing
Antiparallel
Helix
Complementary
Which of the following pairings of extremozyme subtype and survival conditions is correct?
Acidophiles – optimal growth at pH levels above 9
Cryophiles – optimal growth at temperatures above 80 degrees Celsius
Alkaliphiles – optimal growth at temperatures above 80 degrees Celsius
Piezophiles – optimal growth at high hydrostatic pressure
Which of the following are purine bases?
Cytosine and Uracil
Guanine and Cytosine
Adenine and Thymine
Adenine and Guanine
This enzyme is responsible for unwinding and separating the double-stranded DNA in order to form the replication fork.
Helicase
Polymerase
Primase
Topoisomerase
Enables DNA Polymerase to start making DNA strand
Primer
Enhancder
Polymerase
Methionine
Which of the following is an INCORRECT pairing of concepts?
Intron-does not convey codes for genetic information
tRNA-most abundant type of RNA
Genome-total DNA in chromosomes
Exon- does convey codes for genetic information
Water-soluble vitamins are directly absorbed into the blood.
Transport of fat-soluble vitamins requires protein carriers like H2O
Only the first statement is correct
Only the second statement is correct
Both statements are correct
Both statements are incorrect
Wernicke-Korsakoff syndrome, which can cause acute confusion, ataxia and ophthalmoplegia, can be treated with which of the following?
Thiamine
Pantothenic acid
Riboflavin
Niacin
Fat-soluble vitamins are likely to reach toxic levels when consumed from supplements. Fat-soluble vitamins do not function as coenzymes.
Only the first statement is correct
Only the second statement is correct
Both statements are correct
Both statements are incorrect
ATG is an initiation codon. ATG is also a stop codon
Only the first statement is correct
Only the second statement is correct
Both statements are correct
Both statements are incorrect
Which of the following class of enzymes catalyzes a reaction in which the addition of water molecule to a bond causes the bond to break?
Isomerase
Hydrolase
Oxidase
Reductase
Which of the following is/are correct pairing of concepts?
(More than one correct answer)
TPP and vitamin B6
Coenzyme A and vitamin B5
NAD and vitamin B3
FAD and vitamin B2
