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Biology OYO

OYO Module 6

QuestionAnswer
6.1 A cell makes proteins in an organelle that is near the center of the cell. It then transports the proteins to the edge of the cell and sends them into the surroundings to be used by other cells.
6.1(continued) What three of the basic life functions are employed to accomplish this series of tasks? Secretion, movement, and biosynthesis.
6.2 A cell takes in a polysaccharide and sends it to an organelle to be digested. The digestion products are then used to produce energy. The soluble waste products are eliminated. What five of the basic life functions are performed in this precedure? Absorption, movement, digestion, respiration, and excretion.
6.3 Take the items listed in Figure 6.1 (with the exception of the nucleolus and the chromatin) and indicate which of the 11 functions the organelle helps the cell to perform. Mitochondrion- respiration. Lysosome- digestion. Secretion vesicle- secretion, movement. Centrioles- movement, reproduction. Golgi body- secretion, movement, biosynthesis. Plasma membrane- absoption, secretion, excretion, egestion.
6.3(continued) Cytoplasm- movement. Ribosomes- biosynthesis. Smooth ER- biosynthesis, movement, excretion, egestion. Rough ER-biosyinthesis, movement. Nucleus- homeostasis, irritability. Vacule- homeostasis. Leucoplast- homeostasis.
6.3(continued) Central vacuole- homeostasis. Chloroplast- biosynthesis. Cell wall- absorption, secretion, excretion, egestion.
6.4 Lactose-intolerant people cannot digest the disaccharide lactose due to the lack of an enzyme. Which organelle in the cells of a lactose-intolerant person does not have what it needs to get its job done? Lysosome.
6.5 List the organelles that are commonly found in plant cells but not in animal cells. List those organelles commonly found in animal cells that are not found in plant cells. Cell wall, chromoplast, central vacuole, leucoplast. Centriole, lysosome.
6.6 Even though ribosomes are considered organelles, they exist in both prokaryotic and eukaryotic cells. A student claims that this contradicts the definition of a prokaryotic cell, because he says that a prokaryotic cell cannot have organelles.
6.6(continued) Why is the student wrong? Ribosomes aren't membrane-bounded.
6.7 If the plasma membrane were made out of regular lipids (not phospholipids) it could never self-reassemble. Why? Because it doesn't have a hydrophilic end.
6.8 A scientist observes a cell and watches as it explodes. Was the cell in an isotomic, hypertonic, or hypotonic solution? Hypotonic.
6.9 A cell's mitochondria cease to function, and the cell has no more energy. Will all transport across the plasma membrane stop? Why or why not? No. Active transport will cease, but passive transport will continue.
6.10 Table.
6.11 What stages in the process of aerobic respiration make it an aerobic process? Krebs cycle, electron transport system.
6.12 Despite the fact that a cell has all of the enzymes necessary for cellular respiration, plenty of glucose, functioning mitochondria, and a plentiful supply of oxygen, it cannot produce energy that is useable by the cell. What is it missing? Adenosine diphosphate (ADP).
6.13 How many glucose molecules would have to undergo respiration in anaerobic conditions in order to produce the same amount of energy that one glucose molecule produces in aerobic conditions? Eighteen.
6.14 After a hard workout, your muscles often ache. One reason for this is the buildup of lactic acid in your muscles.
6.14 Where does that lactic acid come from, and why does the process that produces lactic acid occur in your muscle cells during a hard workout? Cellular fermentation of pyruvic acid. Because the cells aren't getting enough oxygen.
Created by: LiseBrinkley
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