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36 Cards in this Set
- Front
- Back
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Are prokaryotic or eukariotic cells bordered by a membrane?
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Eukaryotic
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Which group has organelles?
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Prokaryotic and Eukariotic cells
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Are prokariotic cells or eukariotic cells bigger?
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Eukariotic
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What is an example of a prokariotic cell?
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Bacteria and archaea
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What is an example of a eukariotic cell?
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protista
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What is the structure of smooth endoplasmic reticulum?
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Has a diversity of enzymes built into membrane
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Where is the smooth endoplasmic reticulum located in the cytoplasm?
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Runs throughout the cytoplasm
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What is the function of smooth endoplasmic reticulum?
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The function is the synthesis of lipids, and the detoxification of drugs and other poisons.
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what is the structure and location of rough endoplasmic reticulum?
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Structure: ribosomes stud the outside of the endoplasmic reticulum.....location: runs throughout the cytoplasm.
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What is the function of rough endoplasmic reticulum?
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function: is to produce a new membrane.
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What is the structure and location of the GOLGI APPARATUS?
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structure: flattened sacs arranged in a stack.....location: on one side.
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What is the function of the GOLGI APPARATUS?
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to recieve, refine, store, and distribute chemical productsof a cell.
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What is the structure and location of a lysosome?
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Structure: membrane-enclosed sac of digestive enzymes....location: placed throughout the cytoplasm
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What is the function of a lysosome?
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Breaks down macromolecules such as proteins, polysaccharides, fats and nucleic acids.
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Is cilia or flagella longer?
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flagella
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Which is more numerous cilia or flagella?
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cilia
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Cilia is short and numerous....true/false
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true
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flagella is long and there are not very many of them...true/false
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true
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cilia moves back and forth...true/false
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true
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flagella occurs singly and they are undulate....true/false
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true
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Where are cilia and flagella found?
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inside cells
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Which organelle is involved in cellular respiration.....mitochondria or chloroplasts?
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Mitochondria
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Which organelle is involved in photosynthesis......mitochondria or chloroplasts?
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chloroplasts
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How many MEMBRANES does mitochondria have?
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2
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How many COMPARTMENTS does chloroplats have?
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3 major compartments
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What is the most active region of mitochondria?
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inner membrane
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What is the most active region of chloroplasts?
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grana
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How can an object at rest have energy?
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It can have potential energy because of the location or arrangement of its atoms
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Describe the energy transformations that occur when you climb to the top of a stairway?
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You convert the chemical energy of foodto the kinetic energy of your upward climb. At the top of the stairs, some of the energy has been stored as potential energy because of your higher elevation. The rest has been converted to heat.
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Which form of energy is the most randomized and the most difficult to put to useful work?
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Heat energy
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Explain how ATP powers cellular work.
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ATP transfers a phosphate group to other molecules, increasing the energy contentof those molecules.
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What is the source of energy for regenerating ATP from ADP?
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Chemical energy harvested from sugars and other organicfuels via cellular respiration.
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Where in the cell does this take place?
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In the mitochondria
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What effect does an enzyme have on the activation energy of a chemical reaction?
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An enzyme lowers the activation energy of a chemical reaction.
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How does an enzyme recognize its substrate?
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the substrate and the enzyme'sactive site are complementary in shapeand chemical nature.
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How does the antibiotic penicillin work?
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It inhibits an enzyme that certain bacteria use to make their cell walls.
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