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43 Cards in this Set
- Front
- Back
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What is not a passive transport process? |
Pinocytosis |
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Diffusion of water through a selectively permeable membrane in the presence of at least one impermeant solute is referred to as |
Osmosis |
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The trapping of bacteria by specialized white blood cells as an example of? |
Phagocytosis |
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A hypertonic solution is one that contains? |
A greater solute concentration of solute than the cell |
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The force of a fluid pushing against the surface could be described as? |
Hydrostatic pressure |
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The sodium potassium pump is an example of an active what? |
Active transport process |
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Cellular secretion can be achieved by? |
Exocytosis |
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Solute are particles dissolved in a? |
Solvent |
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What is a solution that draws water from a cell |
Hypertonic |
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Two fluids that have the same potential osmotic pressure |
Isotonic |
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What solution causes cells to swell? |
Hypotonic |
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Enzymes that cause essential chemical reactions to occur are called? |
Catalysts |
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Molecules that are acted upon by enzymes are known as? |
Substrates |
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In naming enzymes the root name of the substance whose chemical reaction is catalyzed is followed by the suffix? |
-ase |
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Which of the following activates enzymes by means of an allosteric effect? |
Kinases |
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Enzymes are? |
Proteins |
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What are three processes that compose cellular respiration? |
Glycolysis, the citric acid cycle, and the electron transport system |
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The portion of an enzyme molecule that chemically fits the substrate molecules is referred to as? |
Active site |
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What is a major cellular activity? |
Protein anabolism |
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The citric acid cycle is also known as? |
Krebs cycle |
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Glycolysis |
Occurs in the cytoplasm of the cell, is anaerobic, and splits one molecule of glucose into two molecules of pyruvic acid |
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The Krebs cycle takes place in the? |
Mitochondria |
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The third step in cellular respiration is? |
Electron transport system |
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The energy required for active transport processes is obtained from? |
ATP |
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Movement of substances from a region of high concentration to a region of low concentration is? |
Passive transport |
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Osmosis is the ___________ of water across a selectively permeable membrane |
Diffusion |
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A molecule or other agent that alters enzyme function by changing its shape is called? |
An allosteric effector |
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Glycolysis is a catabolic pathway that begins with glucose and ends with? |
Pyruvic acid |
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Which movement always occurs down a hydrostatic pressure gradient? |
Filtration |
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The uphill movement of a substance through a living cell membrane is? |
Active transport |
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Membrane pumps are an example of which type of movement? |
Active transport |
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An example of a cell that performs phagocytosis is the? |
White blood cell |
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A saline solution that contains a higher concentration of salt then living red blood cells would be called? |
Hypertonic |
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A red blood cell becomes engorged with water and will eventually lyse, releasing hemoglobin into the solution. This solution is ___________ to the red blood cell? |
Hypotonic |
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Membrane channels are called? |
Protein tunnels |
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Endocytosis is also called? |
Phagocytosis |
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Pepsin is a? |
Enzyme |
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What is an enzyme that adds or removes carbon dioxide? |
Carboxylases |
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Pinocytosis means? |
"Cell drinking" |
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Aquaporins are what? |
Type of membrane channel |
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Facilitated diffusion is what? |
Carrier-mediated passive transport |
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What is the first stage of cellular respiration? |
Glycolysis |
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Define permeant |
Molecule able to diffuse across a particular membrane |
