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Sample Test Questions test 1 key

Sample Test Questions test 1 key - Sample Test Questions...

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Sample Test Questions Key Bio 311C Test 1 1. (2 pts.) The movement of large particles into the cell (across the plasma membrane) is known as endocytosis and the movement of large particles out of the cell is known as exocytosis. 2. (6 pts.) What are the three main functions of the plasma membrane? 1. isolates the cytoplasm from the external environment 2. regulates the flow of materials between the cytoplasm and the environment 3. allows interaction with other cells 3. (6 pts.) What are the three main components of all cells? 1. plasma membrane 2. DNA 3. ribosomes 4. (4 pts.) During an exergonic reaction, the energy content of the reactants is higher / lower (circle one) than the energy content of the products. During an endergonic reaction, the energy content of the reactants is higher / lower than the energy content of the products. Give an example of an exergonic and endergonic reaction. Exergonic: burning coal endergonic: photosynthesis 6. ( 4 pts.) What three components make up the cytoskeleton? Which of these is involved in chromosomal movement during cell division? Microfilaments, intermediate filaments, microtubules. Microtubules make up the spindle apparatus.
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