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35 Cards in this Set
- Front
- Back
Which of the following causes a dividing cell to pinch in two by contracting like a purse string?
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Actin Filaments
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Which is incorrect about the plasma membrane?
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Proteins embedded in the lipid bilayer do not move.
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The simplest cells are the:
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Prokaryotic bacteria
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Which of the following kingdoms are prokaryotes?
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Archaea
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Which organisms do NOT have centrioles?
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Plant and fungi
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Choose the membrane molecule responsible for aiding passage of polar molecules into and out of the cell.
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Transmembrane proteins
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An extensive system of internal membranes, called the ______, is where carbohydrates and lipids are manufactured, and proteins are made that will be exported from the cell.
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endoplasmic reticulum
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Cilia and flagella differ from each other primarily in:
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length
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An extracellular matrix is produced by glycoprotein secretion by:
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animal cells
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What is the function of the nucleolus?
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The site of ribosome subunit assembly.
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Select the membrane molecule that is made up of a polar region with two nonpolar fatty acid tails.
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Phospholipids
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Oxidative metabolism takes place in the______of the cell.
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Mitochondria
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Which statement about cell walls is true?
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The middle lamella glues the walls of adjacent cells together.
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In the sodium-potassium pump, sugars and amino acids, or other molecules, are brought through the membrane along with sodium ions through:
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Coupled channels
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When a cell membrane engulfs fluid droplets it is called:
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pinocytosis
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Which of the following processes requires BOTH a channel protein AND energy?
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Active transport
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Which process would enable a white blood cell to ingest a bacterium?
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Phagocytosis
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The endosymbiont theor is supported by the following evidence except:
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Mitochondria have a matrix.
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_____ function in the collection, packaging, and distribution of molecules made in the cell.
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Golgi bodies
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Which structure helps prokaryotic cells attach to substrates and aid in the exchange of genetic information between cells?
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Pili
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If a paramecium's contractile vacuole stops working, what minght happen to organisms?
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It would fill with water and lyse.
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The nucleus of the eukaryotic cell functions:
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As the command center for the cell., To shore the cell's hereditary information, To house the nucleolus.
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When molecule move through a cell membrane froman area of greater concentration to an area of lesser concentration by way of a channnel protein, it is called:
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facilitated diffusion
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Which of the following processes requires BOTH a channel protein AND energy?
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Active transport
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Which of the following is not an organelle?
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Ribosome
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Which process would enable a white blood cell to ingest a bacterium?
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Phagocytosis
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When a cytoplasmic vesicle fuses with the plasma membrane, expelling its contents outside the cell, the process is known as:
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exocytosis
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The endosymbiont theor is supported by the following evidence except:
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Mitochondria have a matrix.
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_____ function in the collection, packaging, and distribution of molecules made in the cell.
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Golgi bodies
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Which structure helps prokaryotic cells attach to substrates and aid in th exchange of genetic information between cells?
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Pili
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If a paramecium's contractile vacuole stops working, what minght happen to organisms?
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It would fill with water and lyse.
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|
The nucleus of the eukaryotic cell functions:
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As the command center for the cell., To store the cell's hereditary information, To house the nucleolus.
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When molecule move through a cell membrane froman area of greater concentration to an area of lesser concentration by way of a channnel protein, it is called:
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facilitated diffusion
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Which of the following is not an organelle?
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Ribosome
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When a cytoplasmic vesicle fuses with the plasma membrane, expelling its contents outside the cell, the process is known as:
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exocytosis
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