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