BIO EXAM 2
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Which of the following can be found in/on the plasma membrane? (aka cell membrane) | phospholipids, cholesterol, transport protein, glycoproteins, aquaporins
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| Proteins which penetrate the cell membrane are called? | integral proteins
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| Proteins which are not embedded in the cell membrane, but are loosely attached to the cell membrane surface are called? | peripheral proteins
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| Which of the following are functions of the cell membrane proteins? | transport, cell-cell recognition, attachment to cytoskeleton and collagen, cell signaling
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| Which of the following molecules can diffuse directly through the cell membrane, without the help of transport proteins? | O2, CO2
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| Active transport involves which of the following? | ATP, protein pumps, movement from low to high concentration
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| Passive transport involves which of the following? | movement from high to low concentration, does not require energy, may include transport proteins
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| A membrane that allows some substances to go through more easily than others is called? | selectively permeable
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| Water is able to pass through the cell membrane via? | Aquaporins
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| The passive movement of substances from a high concentration to a low concentration without the use of transport proteins is called? | Diffusion
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| The movement of water from HIGH concentration to LOW concentration is called? | Diffusion
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| Movement of substances from a low concentration to a high concentration, requiring energy, is called? | Active Transport
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| Protein pumps, like the proton pump in bacteria and mitochondria, are involved with? | Active Transport
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| A cell has an interior concentration of 5% solutes. The cell is currently in an environment that has a concentration of 1% solutes. What is the net flow of water due to osmosis? | Into the cell
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| A cell has an interior concentration of 3% solutes. The cell is currently in an environment that has a concentration of 10% solutes. What is the net flow of water due to osmosis? | Outside of the cell
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| An animal cell has a solute concentration of 1.0 moles per liter. The cell is placed in distilled water. What will happen to the cell? | The cell will lyse (explode)
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| A cell has a solute concentration of 1%. It is placed in a solution that is 5% salt. What will happen to the cell? | The cell will crenate (shrink)
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| A solution that has more solutes than the inside of the cell is called? | Hypertonic
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| A solution that has an equal amount solutes as the inside of the cell is called? | Isotonic
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| A solution that has less solutes than the inside of the cell is called? | Hypotonic
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| A series of molecular events and chemical reactions that lead to a cell's response to a signal is called? | Signal Transduction Pathway
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| Which of the following fibers are involved with cellular movements? | Microfilaments and Microtubules
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| Microtubules are made up of what protein unit? | Tubulin
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| Microtubules are used in which of the following cell movements? | Cilia, Centrioles/Spindle fibers, Flagella
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| Microfilaments are responsible for which of the following cell movements? | Pseudopodia, Muscle movement, Cytoplasmic streaming
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| Which of the following are involved with cell structure (makes up the cytoskeleton)? | Microfilaments, Intermediate filaments, Microtubules
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| Everything inside the cell membrane, except the nucleus, is consider part of the? | Cytoplasm
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| What organelle makes proteins? | Ribosomes
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| What organelle merges with the food vacuole in protists and other simple organisms and digests the food within? | Lysosome
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| The organelle responsible for storing water in plants (but not animals) is called the? | Central Vacuole
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| What would be the proper sequence of organelles involved with protein flow, from Ribosome to cell membrane? | Ribosome -> Rough ER -> Transport Protein 1 -> Golgi -> Transport Protein 2
-> Cell Membrane
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