1) What is the likely maximum magnification of the microscope that took this image? a) x1500 b) x100000 c) x250000 d) x1000000 2) The image shows cells stained with methylene blue. What substance in the cells is it staining? a) DNA/RNA b) Protein c) Phospholipids d) Cholesterol 3) Electron microscopes also use stains. What was the most likely stain used in making this image? a) Gold b) Starch c) Uranium d) Salts of lead 4) Which is the BEST description of what this structure does? a) Transports vesicles b) Modifies molecules c) Packages proteins d) Contains digestive enzymes 5) What is the most likely size of this cell? a) 2µm b) 0.1µm c) 15µm d) 50µm 6) Which structure is this cell least likely to have? a) Nucleus b) Rough enodplasmic reticulum c) Cilia d) Cell wall 7) Which of these is NOT a function of the cytoskeleton? a) Support plant cells b) Support animal cells c) Move organelles around animal cells d) Move organelles around plant cells 8) What causes "x"? a) Rapid repolarization of right and left ventricles b) Atrial-fibrillation c) A signal from the SAN to the AVN and across the atria d) The repolarization (or recovery) of the ventricles 9) Which of these is NOT a feature of veins? a) Lined by endothelial cells b) Smooth muscle controls diameter to alter flow c) Walls distend to accomodate large volumes of blood d) Contain semilunar valves 10) Which number is closest to the inspiratory capacity (in dm3) a) 0.5 b) 4.5 c) 1.2 d) 3 11) Estimate the breathing rate in this graph (in breaths per minute) a) 12 b) 22 c) 3 d) 24 12) Estimate the ventilation rate (in dm3 / min) a) 0.8 b) 140 c) 24 d) 36 13) Which of these would you NOT expect to find in the trachea? a) Goblet cells b) Squamous epithelium c) Elastic fibres d) Cartilage 14) What is structure A? a) Vascular bundle b) Endodermis c) Epidermis d) Phloem 15) Lots of different cells have cilia. Which of these is not a function of cilia in cells? a) Moving small single-celled eukaryotes b) Moving fluids past stationary cells c) In fallopian tubes, moving eggs to the uterus d) Increasing the surface area to maximise rate of absorption

revision As biology F211

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