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