Cells and cell process quiz 0.0 / 5 ? BiologyCell and cell processesGCSEWJEC Created by: Layla Kassim-AliCreated on: 14-04-14 14:44 Which scientists proposed the original cell theory? matthias schleiden and theodor schwann 1 of 25 when was the original cell theory proposed? 1830s 2 of 25 what is the original cell theory? that all living things are made up of cells 3 of 25 how do viruses reproduce? inside a host cell 4 of 25 what are viruses made up of? DNA or RNA and a protein case 5 of 25 how do bacteria reproduce? cell division (by dividing into two) 6 of 25 how do fungi (e.g yeasts) reproduce? budding 7 of 25 what are enzymes made up of? chains of amino acids 8 of 25 what is an enzyme-substrate complex? when a substrate attaches to an enzymes active site and they lock together 9 of 25 what are enzymes? biological catalysts 10 of 25 what are greases broken down by? lipases 11 of 25 what are grass stains broken down by? proteases 12 of 25 what enzymes are put into detergents? digestive enzymes 13 of 25 who discovered the structure of DNA? Watson and Crick 14 of 25 what is DNA? deoxyribase nucleic acid 15 of 25 when were genes and nucleic acids linked and by who? 1944 by Avery 16 of 25 how did watson and crick work out the structure of DNA? chemical theory and ball-and-stick atomic models 17 of 25 where did the data to allow watson and crick to work out the structure of dna come from? x-ray crystallography 18 of 25 What is DNA made up of? two alternating chains of sugar and phosphate 19 of 25 what bases always go together? A and T, C and G 20 of 25 what to 3 bases along the chain form? triplet code 21 of 25 what is dna twisted into? a double helix 22 of 25 what does dna do? provides instructions for every cell to work 23 of 25 why do enzymes denature at high temperatures? the chemical bonds in the enzymes active site are broken 24 of 25 what are the names of the four bases? adenine, thymine, cytosine and guanine 25 of 25
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