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Biology 11 – Ms. Bowie Cellular Structures & Functions Cell Theory ____ = 13 Unit Test on Cells % ____ = 40 % Page 1 of 10 Cell Membrane ____ = 18 Cellular Respiration & Photosynthesis Osmosis & Diffusion % ____ = 20 % ____ = 35 % Test #1 Cellular Biology and Energy Transformations Name: ___________________________________ Section: ______ Date: March 31, 2017 Cell Theory 1) State the 3 postulates of the cell theory. (3 marks) 1 2 3 2) Match the name of the person with their contribution to the cell theory. (10 marks) Letter Match What they contributed Letter Name 1. Plant biologist who said all plants are made of cells. A Aristotle 2. Conducted an experiment with meat in two flasks, one stoppered, one open to air to disprove Spontaneous Generation B Zacharias Jansen 3. Studied chick embryos & observed mitosis; explaining that cells come from pre-existing cells. C Robert Hooke 4. Credited with making the 1st microscope (& telescope) thanks to his occupation as an eye glass maker. D Anton Van Leeuwenhoek 5. Credited for writing the Cell Theory as it exists today. E Francesco Redi 6. Credited with observing the 1st microscopic organisms (which he called animalcules) and bacteria. F Robert Brown 7. Put forth the idea of spontaneous generation and the notion of 2 Kingdoms of Life. G Matthias Shleiden 8. Credited with the discovery of the nucleus by studying orchid cells at the Botanical Gardens in London. H Theodor Schwann 9. Wrote “Micrographia” & coined the term “cell” based on the appearance of cork cells under a microscope. I Robert Remak 10. Animal biologist who was the 1st to claim that all animals were made of cells. J Rudolf Virchow Biology 11 – Ms. Bowie Unit Test on Cells Page 2 of 10 Cellular Structures & Functions 1) (40 marks) Label the following parts of the animal cell below. (10 Marks) WORD BANK Cell Membrane Cell Wall Protoplasm Cytoplasm Rough Endoplasmic Reticulum Cytoskeleton Nucleus Nucleolus Chromosomes Smooth Endoplasmic Reticulum Ribosomes Lysosomes Centrioles Golgi Complex Peroxisomes Vesicles Mitochondria Vacuoles Central Vacuole Chloroplasts 10 1 2 3 9 4 5 Tubes NOT studded with tiny spheres 8 Tiny spheres 6 7 Filled with enzymes to break down worn out cell parts 1 2 3 4 5 2) 6 7 8 9 10 Label the following parts of the plant cell below. (10 Marks) 10 Fibers & filaments 1 2 3 Organelles of stacks of disks that help with photosynthesis 4 9 Folded membranes studded with spheres 8 5 6 7 1 2 3 4 5 Inner "skin" that controls what enters or leaves the cell Tough outer covering 6 7 8 9 10 Fluid holding the organelles Biology 11 – Ms. Bowie Unit Test on Cells 3) Match the structures with the functions. (15 marks) Answer Structure's Function 1 Cell wall A The control center of the cell. Holds the DNA 2 Cytoplasm B The powerhouse of the cell. Primary site of cellular respiration. 3 Rough endoplasmic reticulum C The packaging center of the cell. 4 Centrioles D Small storage bubbles for proteins & cellular materials. 5 Nucleus E A phospholipid bilayer which controls what enters or exits the cell. 6 Mitochondria F Folded membranes studded with spheres. Site of protein synthesis. 7 Vacuoles G The site of photosynthesis in plants. 8 Smooth endoplasmic reticulum H Dense mass involved in the production of ribosomes and carries out RNA transcription. 9 Ribosomes I Large, water-filled sac that creates the turgor pressure that holds plant cells firmly upright. 10 Golgi Complex J Folded membranes with NO spheres. Sites of modification of carbohydrates & lipids. 11 Peroxisomes K Structure made of two subunits that translate the mRNA passing through it into proteins. 12 Chloroplast L Involved in cellular reproduction (specifically the formation of spindle fibers during mitosis) 13 Central vacuole M The fluid-like jelly that consists of the organelles outside the nucleus. 14 Nucleolus N Tough outer cellulose layer of plant cells that provides the structure and shape of the cell. O Vacuoles filled with enzymes which help to break toxic hydrogen peroxide down into harmless molecules like water and oxygen. 15 4) Structure Name Page 3 of 10 Cell membrane List 5 organelles that found ONLY in ONE of the cell types: (5 marks) Plant Cells Only Animal Cells Only Biology 11 – Ms. Bowie Unit Test on Cells Page 4 of 10 Cell Membrane 1) Label the parts of the cell membrane below. (8 marks) WORD BANK Cholesterol Pore protein Glycoprotein Fibrous protein Channel protein Hydrophilic head Hydrophobic tail Phospolipid 1 2 3 4 5 6 8 7 1 5 2 6 3 7 4 8 2) Match the functions listed below with the name of the structure. (6 marks) Letter Structure Name Structure's Function 1 Cholesterol A The primary structure of the membrane. Hydrophilic parts faces aqueous environments, hydrophobic parts are repelled from water. 2 Pore protein B Helps your immune system recognize the cell as belonging to "self". 3 Channel protein C A selective receptor that acts like a lock & key. 4 Fibrous protein D Provides stability to reduce the mobility of the phospholipids. 5 Phospolipid E Provides a passageway for water to pass through. 6 Glycoprotein F Allows charged particles (ions) to pass through. Biology 11 – Ms. Bowie 3) Unit Test on Cells Page 5 of 10 Examine the segment of the cell membrane shown and answer the questions below. (4 marks) A B 1. Based on the diagram shown, which side represents the OUTSIDE of the cell, A or B? 2. How do you know? 3. Is this an animal cell or a plant cell? 4. How do you know? Biology 11 – Ms. Bowie Unit Test on Cells Osmosis & Diffusion 1) Page 6 of 10 (20 marks) In each of the situations below... (12 marks) a) Indicate whether each SOLUTION is hypertonic, hypotonic or isotonic relative to the inside of the cell. b) Show the direction of flow of water using arrows. c) State what will happen to the "cell" shown in each (swell & burst, swell but not burst, shrink, stay the same) I) An animal cell is placed in the following solutions. 3.6 M 3.6 M 3.6 M 0.1 M 5.0 M 3.6 M This solution is This solution is This solution is _____________________ relative to the inside of the cell _____________________ relative to the inside of the cell _____________________ relative to the inside of the cell This cell will This cell will This cell will ______________________ ______________________ ______________________ II) An plant cell is placed in the following solutions. 4.2 M 4.2 M 4.2 M 5.1 M 4.2 M 1.6 M This solution is This solution is This solution is _____________________ relative to the inside of the cell _____________________ relative to the inside of the cell _____________________ relative to the inside of the cell This cell will This cell will This cell will ______________________ ______________________ ______________________ 2) You are having a party and you just checked your veggies (carrots & celery) and they are all soggy. Your Mom suggests you put them in the "liquid" in the plastic container in the fridge to help "firm them up again". When you look in the fridge you see that there are 2 container; one tastes like pure water and one tastes really salty. In order to make your veggies "crunchy" again, which container should you put the veggies in? Explain why this would work. Use words like hypertonic & hypotonic... I would put them in the container that tastes ____________________________________________ This would make the veggies crispy again because: Biology 11 – Ms. Bowie Unit Test on Cells Cellular Respiration & Photosynthesis Page 7 of 10 (35 marks) 1) Complete the following sentences: (a word bank is supplied) a) The 1st step in cellular respiration is called __________________________. b) The 1st step takes place in the ____________________________ of the cell. Acetyl CoA Aerobic Alcohol Alcohol Anaerobic ATP CO2 (carbon dioxide) c) In the 1st step, a molecule of ______________________________ is broken into 2 Coenzyme A molecules of ________________________________. d) During this step _____ molecules of ATP are needed to get the reaction started, but ______ ATP are produced. Therefore, this step will create a net gain of ______ ATP. e) In addition to the ATP produced, another energy storage molecule called _____________ is created. Two of these are created during this 1st step. f) Two pyruvate move on from this step and travel toward the (name of organelle) ________________________. Ms. Bowie calls this the Transition Step. Cristae Cytoplasm Electron Transport Chain Electrons FADH2 Glucose Glycolysis Gradient Hydrogen Krebs Cycle Lactic acid Mitochondrial matrix Mitochondria NADH Oxaloacetate Oxygen Pyruvate Transition Step g) While on route, each pyruvate joins with a molecule of _________________ forming a new molecule known as ________________________________. h) This new molecule finally arrives in the ____________________ _____________ (the casino) where it meets a helper molecule known as _____________________________. i) This is the beginning of the 2nd true step of cellular respiration known as the _________ ________. j) As the compound, which contains 2 of the original carbon atoms from glucose, proceeds through a series of reactions, each of the carbons are stripped off the compound and released as _____________________. k) This step produces 6 molecules of the high energy carrier (casino chips) known as _____________, 2 molecules of a second type of high energy carrier known as ____________ and 2 ____________ (the energy currency of the cell). l) All of the high energy carriers produced in the previous steps are a very important part of the 3rd and final step known as the ______________________________________________. m) This step occurs across the mitochondrial _____________________________. Biology 11 – Ms. Bowie Unit Test on Cells Page 8 of 10 n) In this final step, the high energy carriers release 2 high energy _________________ and __________________ ions. o) The energy released pushes the ________________________ ions across the membrane against their concentration _____________________________. p) When the concentration of ___________________________ ions builds up sufficiently between the two membranes, they will gain enough energy to push back into the mitochondrial _______________ through a protein complex where 32-38 _______________ are produced per molecule of glucose. q) In order to keep this process flowing, the high energy electrons must be removed by molecules of __________________________ producing water molecules. If this critical molecule is not available, the process of cellular respiration will shut down and be incomplete. r) Acetyl CoA Aerobic Alcohol Alcohol Anaerobic ATP CO2 (carbon dioxide) Coenzyme A Cristae Cytoplasm Electron Transport Chain Electrons FADH2 Glucose Glycolysis Gradient Hydrogen Krebs Cycle Lactic acid Mitochondrial matrix Mitochondria NADH Oxaloacetate Oxygen Pyruvate Transition Step Cellular respiration that occurs without enough __________________________ is known as __________________________________ respiration. s) When this happens in animal cells, __________________ ______________ will be produced as well as a small amount of ATP (that was created in the 1st step). t) When incomplete cellular respiration happens in yeast cells, _________________________________ is produced, as well as a small amount of ATP. u) Aerobic respiration occurs when there is enough ____________________________ to complete the entire cellular respiration process. 2) Identify the name of each of the following reactions. (2 marks) In the presence of sunlight CO2 + H2O carbon dioxide + water This reaction is showing: C6H12O6 glucose + O2 + oxygen C6H12O6 + O2 CO2 + H2O + ATP Glucose + oxygen carbon dioxide + water + ATP _____________________________ _ This reaction is showing: _____________________________ Biology 11 – Ms. Bowie Unit Test on Cells Page 9 of 10 Reference Page _________________________________________________________________________________ __________________________________________________________________________________ Biology 11 – Ms. Bowie Unit Test on Cells Page 10 of 10