Class IX: Biology Chapter 5: The fundamental unit of life. Chapter Notes Key learnings: 1) In 1665‚ Robert Hooke first discovered and named the cells. 2) Cell is the structural and functional unit of all living organisms. 3) Organisms may be unicellular or multicellular. A single cell constitutes the unicellular organism whereas many cells coordinately function in case of multicellular organism. 4) The size‚ shape and volume of the cell are related to the specific function that they
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Bradypnea Carbo Containing carbon Carbohydrate Cardi Heart Cardiopulmonary Cata- Down Catabolism -cele tumor (cyst) blastocele Centr- A point Centromere cephal head cephalothorax chiasm a cross optic chiasma Chloro Chlorophyll Chloroplast chondr cartilage
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endosymbiotic hypothesis is that a prokaryotic cell “ate” smaller organelles which evolved into what they are today. 5. What is the evidence for the endosymbiotic hypothesis? Answer: The evidence that supports this is because mitochondrion and chloroplast both have a “brother” cell; the cells are extremely alike. The “brother” cell is a prokaryotic cell. 6. What are the comparative strengths and weaknesses of the two hypotheses? Answer: The comparative strengths and weaknesses of
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mitochondria provides the power/generator‚ etc.” Your task is to come up with a NEW analogy. A cell is like a……? Be sure to include these cell organelles and justify your responses. 1. nucleus 2. mitochondria 3. endoplasmic reticulum 4. chloroplast 5. ribosome 6. golgi body 7. lysosome and vacuole You have a choice as to what product you would like to submit for this assignment. Choose one of the following: Describe your analogies and justify your responses. Create a powerpoint
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of leaf pigments in acetone‚ forceps‚ scissors‚ acetone‚ a quart jar with a lid containing solvent of petroleum ether and acetone and chromatography paper stapled into a cylinder marked with a pencil line about 1cm from one end. An extract of chloroplast pigments where obtained and a blender was used to rupture the cells. Pigments were then extracted with acetone an organic solvent. Then pigment extracts were separated using paper chromatography. Pigment extract was applied to a cylinder of chromatographic
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experiment is primarily based off of the process of photosynthesis. The experiment tracks the rate of photosynthesis as it is affected by the color of the light source. Changing the light bulb color changes the length of the wavelengths that hit the chloroplasts in the plant leaves and effects how fast or if photosynthesis occurs. The equation for photosynthesis is 6 CO2 + 6H2O + light energy=C6H12O6 + 6O2 meaning that when a plant cell absorbs carbon dioxide and water alongside sunlight then the plant
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Name: ___________________ Period:________ Cell Project Each person will complete one of the three cell projects at home: a. Cell Analogy Poster b. Travel Brochure to a Cell c. 3D Cell Analogy Model Due Date: Wednesday‚ November 26‚ 2014 One cell project (Poster‚ Brochure‚ OR Model) Use this packet as a resource guide to help lead you through your project. Remember‚ you are not doing everything in this packet‚ only ONE cell project choice at home. Parents/Guardians Please review the choices
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respectively. You may even hear about rRNA which stands for ribosomal RNA. They are called nucleic acids because scientists first found them in the nucleus of cells. Now that we have better equipment‚ nucleic acids have been found in mitochondria‚ chloroplasts‚ and cells that have no nucleus‚ such as bacteria and viruses.
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Unit 2. Chapters 9-16. Cell Processes 1. Cellular Respiration‚ Photosynthesis‚ Cell Cycle‚ Mitosis‚ Meiosis‚ & Genetics. Note A: All work must be hand-written‚ including charts & diagrams. Note B: each answer requires more than one sentence & use diagrams whenever possible; failure to use diagrams will result in less points. Chapter 9 Outline 1) Principles of Energy Conservation a) Cellular respiration and fermentation are catabolic(energy – yielding) pathways b) Cells must recycle the ATP
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Chapter 25 Pre-Test Question 1 Part A Miller and Urey’s experiments that attempted to recreate conditions on early Earth were significant because _____. Hint 1. They gave credence to the idea of abiotic synthesis. ANSWER: they showed how polymers could form spontaneously on a clay substrate they produced the first protocells they showed how radiometric dating could be used to give the absolute ages of rocks and fossils proved the endosymbiotic theory they showed that organic
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