UHS MDCAT 2019 PAPER (PART 3) 1. The function of calcium ions in muscle contraction is to: Bind to tropomyosin molecule and cause them to form cross bridges Bind to troponin molecule and cause them to move Polarize visible light Aid in the transmission of nerve impulse 2. What is common in both Competitive and Non- Competitive Inhibition ? Non- Reversible Inhibition Feedback Inhibition Reversible Inhibition Irreversible Inhibition 3. Inside ovary, primary oocyte divides through first meiotic division forming two haploid cells, secondary oocyte and: Follicle Ovum Polar body Oogonium 4. Homozygous means: Alleles in an organism Two different alleles of a gene Having two identical alleles of a gene Having two identical genes 5. Which hormonal pair would maintain the endometrium and make it receptive for implantation of embryo? Estrogen and Follicle Stimulating Hormone Estrogen and Progesterone Luteinizing Hormone and Follicle Stimulating Hormone Luteinizing Hormone and Progesterone 6. Starch is present in tubers, fruits and grains but absent in animal, instead animal have a substance stored in liver and muscles known as: Glycogen Galactose Glucagon Glucose 7. Now-a-days new born gets regular shots of vaccine for polio. It contains _____ for polio to make a child immune against this disease. Antisera Antibodies Antibiotics Antigen 8. Which of the following blood vessels contain semilunar valves? Capillaries Veins Arterioles Arteries 9. The main neurotransmitter for synapses is _____ which lie outside the central nervous system. Acetaldehyde Phosphatidylcholine Choline Acetylcholine 10. The type of energy reduced by the enzymes for biological reactions to occur is called the: Myoglobin Haemoglobin Actin Myosin 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