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The Cell Game - Cell Basics & History 1. Explain the theme correlation of structure and function without using either word. The way a cell is shaped and its parts allow it to do its specific job. 2. What is the study of structure? Anatomy 3. What is the study of function? Physiology 4. What are membrane-bound structures found in plant cells called? plastids 5. What plastid can be found in tomatoes? Chromoplast 6. What plastid can be found in Elodea? Chloroplast 7. What plastid stores starch in potatoes? Leucoplast 8. What is the indicator for starch? Iodine 9. What are three structures both animal and plant cells have? nucleus, cell membrane, cytoplasm 10. What are two differences between plant and animal cell structures? Plants have cell walls and a large vacuole, they are boxy (animals are irregularly shaped) 11. Which type of cell does not have its DNA stored in a nucleus? Prokaryotic 12. What are the only organisms that are prokaryotic? Bacteria 13. Which type of cell has all the organelles including a nucleus? Eukaryotic 14. Who discovered cells while looking at a piece of cork? Robert Hooke 15. What scientist concluded that all animals have cells? Theodor Schwann 16. What scientist concluded that all plants have cells? Matthais Schleiden 17. What scientist developed the microscope and used it to look at pond water where he saw little “animacules?” Anton von Leeuwenhoek 18. What scientist stated that all cells come from other cells? Rudolf Virchow 19. What are the three parts of the cell theory? All living things are composed of one or more cells, the cell is the basic unit of structure and function of organisms and cells come from other cells 20. As a cell grows, what increases faster - volume or surface area? Volume 21. Why are cells small? So they can obtain and excrete substances quickly The Cell Game - Organelles 1. What is the difference between flagella & cilia? Flagella are long tails, cilia are short hairs 2. What is the structure that makes the ribosomes? Nucleolus 3. What organelle assembles amino acids to make proteins? ribosomes 4. What organelle transports proteins and lipids within the cell? endoplasmic reticulum 5. What organelle makes lipids? Smooth ER 6. What organelle packages proteins and lipids preparing them for export? golgi bodies 7. What cell structure carries proteins and lipids to the cell membrane? vesicles 8. Where does cellular respiration take place in the cell? mitochondria 9. Where does photosynthesis take place in the cell? chloroplasts 10. What organelle stores water and nutrients? vacuole 11. What organelle plays and important role in cell reproduction? centrioles 12. Are centrioles found in plant or animal cells? animal cells only 13. What organelle contains enzymes that digest worn out cell parts, toxins and invaders? lysosome 14. What organelle is responsible for converting hydrogen peroxide into water and oxygen? peroxisome 15. What enzymes are found in peroxisomes? peroxidase 16. Which structure is composed of protein and is found through the entire cell giving it support? cytoskeleton 17. What is the difference between vacuoles in plant and animal cells? plants cells have a large central vacuole and animal cells have many smaller ones 18. Why do scientists think mitochondria and chloroplasts contain their own DNA? They were once unicellular organisms living independent of larger cells. The Cell Game - Membrane Structure 1. What two scientists determined the structure of the cell membrane? Singer and Nicholson 2. Why is the membrane referred to as a fluid mosaic? Flexible, constantly moving collection of smaller parts organized into a larger structure 3. What is the main job of the cell membrane? maintain cellular homeostasis by regulating what goes in/out 4. What characteristic of the membrane allows it to control what crosses? selective permeability 5. What are the most numerous molecules in the cell membrane? phospholipids 6. What molecule provides strength to the membrane and prevents it from freezing? cholesterol 7. Which part of the phosholipid molecule is hydrophobic (nonpolar)? the tails 8. What are three types of integral proteins? marker, receptor, transport 9. What type of protein is an antigen? marker 10. What type of protein is an antibody? receptor 11. People with A type blood will make what antibodies? B antibodies 12. If a person is Rh positive, does that mean they have the Rh antigen or not? have it 13. What is the first white blood cell to respond to a virus? macrophage 14. What type of lymphocyte cruises around looking for infected cells and popping them? killer T cells 15. What type of cells make antibodies? B cells and plasma cells 16. What is the job of helper T cells? stimulate killer T cells and activate B cells forming plasma cells 17. How do vaccines work? They are viral antigens that stimulate the body to produce antibodies 18. What type of membrane protein receives signals from hormones such as glucagon and insulin and neurotransmitters in nerve cells? receptor 19. When glucagon connects with a receptor protein, what follows? cyclic AMP carries the message into the cell activating enzymes that break down glycogen into glucose 20. When insulin connects with a receptor protein what is the response? opens transport proteins so that glucose can enter cells 21. What are two common ways psychoactive drugs work? prevent reabsorption of neurotransmitters or imitate neurotransmitters 22. What happens to the number of receptors on nerve cells when a drug is taken for a period of time? decreases 23. What drug prevents the reabsorption of neurotransmitter dopamine? cocaine 24. Which drug imitates enkephalins (substances that block pain)? narcotics (morphine) 25. Which drug imitates the neurotransmitter acetylcholine in muscle cells? nicotine The Cell Game - Membrane Function 1 1. What is the random motion of molecules called? Brownian motion 2. What are the 2 main factors that determine where substances cross the membrane? size and charge 3. What type of molecule goes through bilayer? small and uncharged 4. State two molecules that go through the bilayer. Oxygen and carbon dioxide 5. What type of molecule goes through transport proteins? larger OR charged 6. Give three examples of molecules that travel through transport proteins. glucose, amino acids, ions (Na+, K+, Cl-) 7. What is the difference between passive and active transport? active uses energy, passive usually goes WITH the concentration gradient (hi > lo), active usually goes AGAINST the concentration gradient (lo > hi) 8. What is the amount of substance in a given area referred to as? concentration 9. An uneven distribution of substance across a membrane is a… concentration gradient 10. When molecules are evenly spread out, yet continue to more across the membrane, what condition exists? dynamic equilibrium 11. Give two examples of substances that move by diffusion? oxygen, carbon dioxide 12. What is the protein in red blood cells that carries oxygen? hemoglobin 13. When carbon dioxide diffuses into red blood cells what happens so that it can’t diffuse right back out on its way to the lungs? converted into carbonic acid which breaks into ions… ions can’t easily diffuse across the membrane 14. What is the name of the enzyme that converts carbon dioxide into carbonic acid? carbonic anhydrase 15. Carbon dioxide (due to its acidity) changes the shape of hemoglobin causing it to release oxygen faster to tissues that need oxygen. What is this called? Bohr effect 16. What is the difference between simple diffusion and facilitated diffusion? diffusion occurs through the bilayer with smaller, uncharged substances, facilitated diffusion occurs through channel (transport) proteins with larger or charged substances. 17. What molecules are transported through facilitated diffusion? amino acids, glucose, ions The Cell Game - Membrane Function 2 1. What process is the diffusion of water across a selectively permeable membrane? osmosis 2. What type of solution will cause a cell to shrink as water leaves? hypertonic 3. What type of solution will cause an animal cell to burst when too much water enters? hypotonic 4. What is the term that refers to an animal cell popping? lyse 5. When a plant cell is full of water, it is … turgid 6. A plant cell that has lost most of its water is… plasmolyzed 7. Osmotic pressure in plants is called? turgor pressure 8. What is the part of the kidney that performs the work? nephron 9. Which is the job of the glomerulus and Bowman’s capsule? to filter materials 10. Filtration in the nephron occurs based on what property? size (selective permeability) 11. The renal tubule reabsorbs glucose, water and ions using what process? facilitated diffusion 12. What is the job of the collecting duct? to return water to the blood 13. What process occurs in the collecting duct? osmosis 14. What type of environment surrounds the collecting duct? hypertonic 15. The collecting duct is permeable to what three substances? urea, salt, water 16. Calcium pumps are found in which two cell types? root cells, muscle cells 17. Proton pumps are essential to what process? chemiosmosis 18. What type of pump is found in nerve cells? sodium-potassium pumps 19. What two types of transport occur in nerve signal conduction? active and facilitated diffusion 20. What type of channels allows the passage of two materials? coupled channel 21. When a cell swallows a huge molecule, what process is occurring? endocytosis 22. What type of molecules move across the membrane by endo or exocytosis? huge ones 23. Give an example of a specific molecule that exits the cell by exocytosis. Insulin 24. When a macrophage engulfs a virus, what process is seen? endocytosis