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 Repolarization The action of the acetylcholinesterase enzyme Sodium ions forming an ionic bonding 2. During the G2 phase: Energy is stored for Chromosome movement and mitotic specific proteins( Tubulin) are produced Specific enzymes are synthesized and DNA base units are accumulated The chromosomes are left with only one chromatid Chromosome number is duplicated 3. Thin filaments of muscles contain _____ chains of actin molecules. Four Three One Two 4. Which cell organelle is responsible for cell secretion? Ribosomes Chloroplast Mitochondrion Golgi body 5. Most proteins are made up of: 16 types of Amino acids 170 types of Amino acids 10 types of Amino acids 20 types of Amino acids 6. A disease caused by gradual breakdown of the thin walls of alveoli is _____ . Tuberculosis Bronchitis Emphysema Asthma 7. If sequence in DNA is CCCTAGAG then what would be the sequence in messenger RNA after transcription ? GGGATCTC GGGAUCUC GGAAUCUC GGGGTCTC 8. Taxonomy includes the arrangement of organisms into different taxa. Which of the following represents the correct hierarchy of various taxa of classification? Order, family, class, phylum, kingdom Species, genus, order, family, class, phylum Species, genus, family, order, class, phylum Species, genus, family, class, order, phylum 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. DNA RNA Lipid 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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