UHS MDCAT 2019 PAPER (PART 6) 1. In an action potential, the permeability of sodium Ions in the neurons increases due to: The opening of sodium channels/gates The action of the acetylcholinesterase enzyme Sodium ions forming an ionic bonding Repolarization 2. During the G2 phase: The chromosomes are left with only one chromatid Specific enzymes are synthesized and DNA base units are accumulated 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. Four Two One Three 4. Which cell organelle is responsible for cell secretion? Ribosomes Chloroplast Golgi body Mitochondrion 5. Most proteins are made up of: 16 types of Amino acids 20 types of Amino acids 170 types of Amino acids 10 types of Amino acids 6. A disease caused by gradual breakdown of the thin walls of alveoli is _____ . Emphysema Asthma Bronchitis Tuberculosis 7. If sequence in DNA is CCCTAGAG then what would be the sequence in messenger RNA after transcription ? GGGATCTC GGGGTCTC GGGAUCUC GGAAUCUC 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, family, order, class, phylum Species, genus, order, family, class, phylum Order, family, class, phylum, kingdom 9. Complementary DNA molecule is: An artificial DNA DNA from mRNA A small segment of chromosomal DNA Single stranded DNA 10. Capsid, the protective coat of a virus is made up of_____ subunits known as capsomers. Protein RNA DNA Lipid 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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