1.A) Two main forms of cells exist: eukaryotic cells and prokaryotic cells. Prokaryotic cells are smaller and do not have membrane-bound nucleus or membrane- bound organelles‚ but do have: plasma membrane‚ cytosol and cytoplasm‚ and ribosomes. Prokaryotes contain much less DNA than eukaryotes and have circular chromosomes. Eukaryotic cells have information processing organelles‚ such as the nucleus which houses most of the cell’s DNA‚ and ribosomes which use information from DNA to produce proteins
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microscope and observed for cell shape‚ and identifying the different organelles evident in the plant. The slide was kept on the microscope stage until it became warm. After a few minutes the slide was observed for the movement of the chloroplasts. The movement of the chloroplasts was also recorded. A wet mount with a sample of an onion cell was prepared. The wet mount is prepared by placing a drop of water onto a glass slide. One thin layer of the onion was placed in the drop of water. One drop of
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Biology‚ 7e (Campbell) Chapter 6: A Tour of the Cell Chapter Questions 1) All of the following are part of a prokaryotic cell except A) DNA. B) a cell wall. C) a plasma membrane. D) ribosomes. E) an endoplasmic reticulum. Answer: E Topic: Concept 6.2 Skill: Knowledge 2) The volume enclosed by the plasma membrane of plant cells is often much larger than the corresponding volume in animal cells. The most reasonable explanation for this observation is that A) plant cells are capable
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and pumps it out to pores. * Golgi Apparatus- sorts‚ packages and transports substances. * Vesicles- * Lysosomes- responsible for digestion of waste materials. * Mitochondria- responsible for the production of ATP (energy). * Chloroplast- responsible for photosynthesis. * Microtubules- * Microfilaments- * Cilia * Flagella- * Cytoplasm- 4) Plant and Animal Cells * Plant cells are rectangular shaped and animal cells are round. * Plant cells
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oxidation and reduction. Photosynthesis takes water and carbon dioxide to make glucose and oxygen. Cellular respiration takes glucose and oxygen to make water and carbon dioxide. ● Chloroplasts have an outer and inner membrane. There is intermembrane space and thylakoid space. There is stroma and grana and thylakoid. Chloroplasts are found in mesophyll cells. ●The thylakoids is the part that most light energy is converted into chemical energy. Plants produce oxygen by photosynthesis and breaking the
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H3C6H5O7‚ the H’s are separated. If you simplify the equation by adding up the H’s‚ then your answer will be C6H8O7. Light reactions take place on the thykaloid membranes of the chloroplast. Light reaction requires light and water‚ and produces ATP and Oxygen. Dark reactions take place in the stroma (fluid that fills the chloroplast. It uses the ATP produced in light reactions to make glucose. • What is the role of the electron transport system? Include the reactants and the
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are structurally different. There are many organelles are membranous‚ such as the nucleolus‚ endoplasmic reticulum‚ Golgi apparatus‚ vacuoles and vesicles‚ lysosomes‚ peroxisome‚ mitochondrion‚ and chloroplast. The unique structures between the two: plant cells- large central vacuole‚ cell wall‚ chloroplast; animal cell- small vacuoles‚ and centrioles. In the animal cell‚ they have many structures and functions: plasma membrane defines the cell boundaries and regulates molecule passage in and out
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Biology- cell organelles assignment Animal cells: Introduction: An animal cell is called a eukaryotic cell; it has a cell membrane‚ cytoplasm and a nucleus. The cell surface is covered by a membrane only. The cell membrane is strong and keeps the cell together even though it is thin and flexible. The cell membrane also controls what goes in and out of the cell e.g. nutrients go in and waste comes out. The cytoplasm is inside the nucleus and it controls the cells activities. An animal is
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Photosynthesis occurs in leaves that contain specialized cell structures called chloroplasts. Chloroplasts contain molecules of a green pigment called chlorophyll‚ consisting largely of carbon and hydrogen. It gives green color and absorbs the necessary light for photosynthesis. Chloroplasts are found in palisade cells‚ they have a large surface area‚ which means there is more change of light hitting a chloroplast. Light is a very important factor when it comes to the process of photosynthesis‚
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prokaryotic cells. Another physical difference is the size of both cells. A prokaryote is only 0.5-5 μm‚ whilst Eukaryotes are on average 10 times bigger at up to 40μm. Mitochondria are absent from Prokaryotes‚ yet found in Eukaryotes‚ as are chloroplasts (though chloroplasts are not found in animal cells). One difference as far as existence is concerned‚ is that prokaryotes are believed to be the first form of life around 3.5 billion years ago. Eukaryotes are much younger‚ and believed to have existed around
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