4. Which of the following structures are present in both prokaryotic and eukaryotic cells? The plasma membrane‚ DNA‚ and cytoplasm are present in both types of cells. Name | Prokaryotic | Eukaryotic | Plasma Membrane | x | x | Golgi Apparatus | | x | DNA | x | x | Lysosome | | x | Peroxisomes | | x | Cytoplasm | x | x | 5. Where is genetic material found in plant cells? DNA is found in the nucleus. 6. Mitochondria are the only organelles that contain their own
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wild subspecies‚ Beta vulgaris subsp. adanensis‚ occurs from Greece to Syria. Beetroot cells like any other eukaryotic cells have many types of cell organelle present. Some of these organelles are bounded by a single membrane‚ e.g. lysosomes‚ Golgi apparatus‚ vacuoles; some are bounded by two membranes (an envelope)‚ e.g. nucleus‚ mitochondrion. Beetroot appears as a dark red/ purple colour and this is caused by the betalain pigment‚ which is contained within the vacuole of beetroot cells. In order
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Chapter 3: Cell Structure Notes The cell is the basic unit of biologic organization of the human body Protoplasm: an aqueous colloidal solution of carbohydrates‚ proteins‚ lipids‚ nucleic acids‚ and inorganic salts surrounded by a limiting cell membrane Cells in our respiratory tract produce mucus to trap dust and microorganisms that get past the hairs in our nose then move the material to our throat to be swallowed and passed out through the digestive system The most prominent structure in the
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DNA Extraction from Fruit 1. What was the purpose of adding liquid soap and salt in step #1 and how does NaCl contribute to maximum DNA extraction. The purpose of using soap was to destroy the membranes inside a kiwi cell. Soap helped with that because it dissolves the membranes easily. Salt or NaCl was used to remove proteins and carbohydrates. NaCl caused the proteins and carbohydrates to precipitate. 2. Why was it necessary to “mush” the kiwi by hand? If the step was omitted‚ what
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Carbohydrates & Glycobiology Dr. Jeelan Moghraby B.Sc.‚ D.Phil Assistant Professor Email: moghrabyj@ksau-hs.edu.sa Lecture 13 & 14 BIOC211 2013 Objectives Describe the structure of carbohydrates Classify the types of carbohydrates Recognise different types of glycoconjugates and their role Dr. Jeelan Moghraby Introduction Carbohydrates Most abundant organic molecule in nature Empirical formula (CH2O)n Originally produced from CO2 and H2O during
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a. form multipolymer complex c. withstand very high temperatures b. come apart and re-form d. replicate itself B.2. Which of the following cellular organelles breaks down complex macromolecules‚ such as polysaccharides and proteins? a. Golgi complex b. lysosome c. rough ER d. mitochondrion A.3. The most abundant lipid in a cell membrane a. phospholipids b. steroid c. cholesterol d. chitin B. 4. When the fluid outside a cell has a greater concentration of a given molecule than the
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organelles can be compared to parts of our government in the way they work together. The nucleus is the main organelle in the cell‚ it makes rna and contains dna‚ this is similar to congress because they make laws which is similar to rna. The golgi apparatus packages carbohydrates and proteins into vesicles and export them out of the cell. This can be compared to the U.S. postal service because they package thinks and send them out. Ribosomes have the function of translating rna into proteins which
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messengers‚ structural components or transporters‚ according to their functions. These proteins are made through a process called protein synthesis. Some of the organelles involved in it are the ribosomes‚ the Rough Endoplasmic Reticulum and the Golgi Apparatus. There are a few steps in the process of protein synthesis. The two commonly known steps are transcription and Translation. However‚ the step of translation can be divided into 3 other steps known as Initiation‚ Elongation and Termination. Before
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3A The Structure of Cells Monday‚ September 30‚ 2013 • Cytology ○ Cyto = cell ○ Logos = study of • Background ○ 1665 Robert Hook’s Micrographia § Was studying cork cells ○ 1833 R. Brown § Discovered nucleus ○ 1838 M. Schleiden § Said that all plants consist of cells ○ 1839 T. Schwann § All animals consist of cells ○ 1855 Virchow § Cells come only from preexisting cells • The Cell Theory ○ Cells are the structural units of all living things
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1. Match the following chemical terms with their definition: (Points : 15) Answer | | Potential Matches: | : Proton | | 1 : Molecule that dissociates in water to form individual ions‚ ionic compound | : Neutron | | 2 : Chemical systems that absorb excess acids or bases maintaining a relatively stable pH | : Atomic mass | | 3 : Has lost electrons; indicated by a positive sign‚ as in Na+ | : Element | | 4 : Non-charged particle in nucleus | : Molecule
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