SINDH MDCAT 2019 ( PART 11) 1. Why some vegetables lose water when salt is applied to them? Due to less negative water potential of external environment than the cell Due to more negative water potential of external environment than the cell Due to more positive water potential of external environment thin the cell Due to less positive water potential of external environment than the cell 2. What type of protein is present in eukaryotic DNA but NOT in prokaryotic DNA? Histone protein Chromatid protein Receptor protein Glycoprotein 3. Whenever a muscle contracts, a sarcomere can be shorten up to _____ % of its total length. 35 25 15 45 4. The second stage of the Prophase of Meiosis, following Leptotene, during which homologous chromosomes begin to pair is called: Zygotene Pachytene Diplotene Anaphase 5. Formation of _____ will be greater with the faster break down of glucose and glycogen to compensate energy requirements in an aerobic respiration. Lactic acid Hormones Enzymes Fat 6. A strand, almost _____ nucleotides long is wrapped around a core of _____ histone proteins to forma structure called a Nucleosome. 200—8 200—16 200—4 2000—4 7. A group of biologically active molecules formed from amino acids which interact with the surface of the lipid bilayer of cell membranes are called _____. Cell wall Peripheral proteins Integral Proteins Plasmodesmata 8. Transport of three protons through the ATPase complex are required for the production of one _____. NADPH molecule NADP molecule ATP molecule Sugar molecule 9. Which one of the following options is NOT an example of genetic engineering? Photosynthetic bacteria Insulin producing bacteria Oil eating bacteria Metal extracting bacteria 10. Intra specific competition All are correct Inter specific competition Intra specific competition Environmental competition Loading … Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
