The Cell Lecture 1 0.0 / 5 ? Human BiologyLecture 1 UniversityNone Created by: saraht83Created on: 29-04-16 10:15 Amino acids polymerise into... proteins 1 of 12 Purines and pyramidines polymerise into... polynucleotides 2 of 12 What function does a plasma membrane NOT carry out? prevents entry of bacteria into cell 3 of 12 What is the Cell Theory? all organisms are composed of cells and all cells come from pre-existing cells 4 of 12 What is the size of the smallest object you can see? 0.2mm 5 of 12 Cell surface is limited by... surface-area:volume ratio 6 of 12 Increasing volume... decreases surface-area:volume ratio 7 of 12 What is true of prokaryotic cells? no nucleus, lack distinct organelles, some have cell walls + outside plasma membrane 8 of 12 What is true of eukaryotic cells? membrane-enclosed nucleus, has compartments + organelles 9 of 12 What is the cell wall of bacteria made of? Peptidoglycan 10 of 12 In gram -ve bacteria, the outer layer of ______ encloses the peptidoglycan layer. lipopolysacharide 11 of 12 Mycoplasma bacteria, lack cell wall, unaffected by some antibiotics 12 of 12
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