UHS MDCAT 2019 PAPER (PART 6) 1. In an action potential, the permeability of sodium Ions in the neurons increases due to: Repolarization The action of the acetylcholinesterase enzyme The opening of sodium channels/gates Sodium ions forming an ionic bonding 2. During the G2 phase: Specific enzymes are synthesized and DNA base units are accumulated The chromosomes are left with only one chromatid Energy is stored for Chromosome movement and mitotic specific proteins( Tubulin) are produced Chromosome number is duplicated 3. Thin filaments of muscles contain _____ chains of actin molecules. Three One Two Four 4. Which cell organelle is responsible for cell secretion? Golgi body Mitochondrion Chloroplast Ribosomes 5. Most proteins are made up of: 20 types of Amino acids 10 types of Amino acids 170 types of Amino acids 16 types of Amino acids 6. A disease caused by gradual breakdown of the thin walls of alveoli is _____ . Asthma Tuberculosis Bronchitis Emphysema 7. If sequence in DNA is CCCTAGAG then what would be the sequence in messenger RNA after transcription ? GGAAUCUC GGGGTCTC GGGAUCUC GGGATCTC 8. Taxonomy includes the arrangement of organisms into different taxa. Which of the following represents the correct hierarchy of various taxa of classification? Species, genus, family, class, order, phylum Species, genus, order, family, class, phylum Species, genus, family, order, class, phylum Order, family, class, phylum, kingdom 9. Complementary DNA molecule is: DNA from mRNA Single stranded DNA A small segment of chromosomal DNA An artificial DNA 10. Capsid, the protective coat of a virus is made up of_____ subunits known as capsomers. Lipid DNA RNA Protein Loading … Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
in question no 10
the type of energy reduced by the enzymes for biological reactions to occur is called ACTIVATION ENERGY
at here the correct answer is active energy which is wrong
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