Exam 2 chapters 5-7 Study Guide

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Lecture Quiz 5 Chapter 5 1. Picture of prokaryotic cell, identify letter A? Flagellum 2. Picture of animal cell, the “X” is pointing at? Chromatin (zig-zag lines) 3. Which organelles contain their own DNA? Mitochondria & Chloroplast 4. In comparing plant and animal cells, which of the following statements is true? both plant & animal cells have a plasma membrane, & plant cells have a cell wall 5. Which of the following is not a mechanism used to move materials in and out of the cell? Feedback inhibition 6. The purpose of the cell wall? so a cell is protected by the external structure of the cell
7. Picture of prokaryotic cell, identify letter B? Nucleoid region 8. Match the type of transport with the example: Sodium potassium moving ions across the plasma membrane of animal cells ( Active Transport ) A specific type of active transport, for example when a bacterium in the bloodstream is engulfed by white blood cells. ( Endocytosis ) The fragrance from a broken bottle perfume travels through the department store. ( Diffusion ) Cells in our kidneys reabsorb water to reduce the amount of water loss in our urine. ( Osmosis ) 9. Determine the inaccurate organelle function paring. Plasma membrane provides strength to plant cell walls. 10. Picture of plant cell, what is X? cell wall. 11. What is the main purpose of the ribosome in both eukaryotic and prokaryotic cells? Protein Synthesis
Lab Quiz 5 Chapter 5 1. What is total magnification power of oil immersion? 1000x 2. Match the following steps of the microscope use? STEP 1 Lower the stage STEP 2 Raise the stage STEP 3 Observe under low power STEP 4 Observe under high power STEP 5 Observe carefully under oil immersion STEP 6 Revolve the objective lens 3. What type of microscope is shown in the (blank)? Stereomicroscope 4. What is the magnification of the scanning objective? Make sure to include the unit for full credit. 4x 5. The purpose of this microscope part is to raise & lower the stage to focus the specimen, what is called? Coarse focus knob 6. What type of microscope is being shown in (blank one)? Compound light microscope 7. What is the name of the structure with the letter F? Fine course knob/Objective lenses (2 different options)
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8. T/F As you move to higher objective lenses increases? False 9. What is the name of the structure with the letter A? Ocular lenses
Lecture Quiz 6 Chapter 6 1. There are no other sources for the cell to use if glucose is not available to create ATP. False Feedback: Some amino acids can be used as well as other carbohydrates and fatty acids. 2. Lactic acid fermentation is anaerobic respiration performed by humans in the presence of oxygen. False 3. Which are the coenzymes in charge of carrying the Hydrogen atoms in cellular respiration? NAD+ and FAD+ 4. What is the average amount of ATP that can be produced in cellular respiration? 30-36 5. Which of the following processes can occur in the absence of oxygen? Choose all that apply. Glycolysis; Fermentation 6. In the Citric Acid cycle (Krebs cycle) CO ₂ is produced. True 7. Glycolysis occurs in mitochondria. False Feedback: Glycolysis occurs in the cytoplasm. 8. In humans, what would occur if there were a lack of oxygen? They will be able to go through glycolysis, then fermentation to produce lactate acid. Feedback: In skeletal muscle that has insufficient oxygen supply to allow aerobic respiration to continue (that is, in muscles used to the point of fatigue). In muscles, lactic acid produced by fermentation must be removed by blood circulation and brought to the liver for further metabolism. 9. Why is a gradient of H+ ions formed across the inner mitochondrial membrane important? The ETC will use the energy from the H+ ions passing through the ATP synthases to phosphorylate ADP. Feedback: The question is asking why the gradient of H+ ions is important, it’s NOT asking how it is formed. 10. In Oxidative phosphorylation, because _ oxygen __ is the final electron acceptor, H2O is produced.
Lab Quiz 6 Cell Structure and Function 1. Adding iodine solution will allow you to detect the presence of? STARCH 2. In part 1 of the lab you utilize 2 dyes & their rate of diffusion. Which of dyes moved further and why? Methylene Blue because of its LOWER molecular weight. 3. Dialysis tubing is selectively permeable this means that? some solutes will pass through, and others will not. web: (It was concluded that the dialysis tubing doesn't allow all kinds of substances to pass readily through the pores of its membrane. This means that it is selective in its permeability to substances. The dialysis tubing was permeable to glucose and iodine but not to starch). 4. Plant cells placed in hypotonic solution will not lyse or burst why not? Cell wall prevents them from bursting. 5. Which solute was too large to diffuse through the membrane? STARCH 6. What does the dialysis tubing represent in your experiment? Cell Membrane 7. Toxicity, Matching: Cells Shrivel Up (Crenation) – Hypertonic Solution Hypotonic Solution – Cells Swell and burst (Hemolysis) Hypertonic Solution – Central Vacuole loses water (Plasmolysis) Central Vacuole gains water (Turgor Pressure) – Hypotonic Solution 8. Which solute could diffuse from the beaker into the bag? IODINE 9. In this experiment, what determines whether a substance can pass through the dialysis tubing? MOLECULAR SIZE 10. What happens when iodine is added to a solution containing starch? iodine changes to blue-black in color
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Lecture Quiz 7 Ch 7 Photosynthesis An organism that can produce its own food through the process of photosynthesis is known as: autotroph. Which best explains the role of plant pigments in photosynthesis? Absorb light energy. Match the photosynthesis picture big tree, A-Oxygen B-Sunlight C-Carbon Dioxide In which step of photosynthesis is oxygen produced? light reactions From photosystem II, the electron travels along a series of proteins. This electron transport system uses the energy from the electron to pump hydrogen. Fill in the missing chemicals and identify the location. See image below. Label the locations for thylakoid membrane, NADP+, Location Stroma, ATP, Location Thylakoid Space, H2O
During the light dependent reactions of photosynthesis an electron is charged by delivery of a photon of light and is passed to the next stage. Where do the new uncharged electrons come from? Water What are the three phases, in correct order, of the Calvin cycle? Fixation, Reduction, Regeneration In the light-dependent reactions, energy absorbed by sunlight is stored by two types of energy-carrier molecules: (A) and (B). ATP/NADPH The process of converting large molecules like carbohydrates into small molecules to produce energy for cells is known as photosynthesis. The following are True about photosynthesis except. Oxygen exists as water. But all of these are True found only in photoautotrophs, produces organic molecules, takes in CO2.
Lab Quiz ch 7 What was the purpose of the Venier CO2 sensor during the rate of the cellular respiration in the laboratory? To measure the amount of carbon dioxide Fermentation Lab - Match Maltose + Yeast = A little bit of fermentation Glucose + Yeast = Lots of fermentation Water + Yeast = No fermentation Yeast in the absence of oxygen and presence of glucose does_(Blank)_ fermentation. (anaerobic respiration) A catabolic reaction is a reaction that breaks down complex biomolecules to release energy stored within. TRUE Fermentation requires the presence of oxygen in order to fully break down glucose into carbon dioxide and water. FALSE Bean Lab – Match Germinating Beans = Cellular respiration is occurring Dry Beans = No cellular respiration is occurring No Cellular Respiration to control equal weight = glass beads During the fermentation experiment what was the visible outcome that indicated the fermentation had occurred? Carbon dioxide bubble was created.
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