Cells (part 2): Question Preview (ID: 21861)


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cell
a) collection of living matter enclosed by barrier that separates the cell from its surroundings; basic unit of all forms of lif b) threadlike structure within the nucleus containing DNA that is passed from one generation of cells to the next c) layer of 2 membranes that surrounds the nucleus of a cell d) granular material visible within the nucleus; consists of DNA tightly coiled around proteins
chromatin
a) granular material visible within the nucleus; consists of DNA tightly coiled around proteins b) layer of 2 membranes that surrounds the nucleus of a cell c) material inside the cell membrane not including the nucleus d) specialized structure that performs important cellular functions within a eukaryotic cell
chromosome
a) threadlike structure within the nucleus containing DN that is passed from one generation of cells to the next b) layer of 2 membranes that surrounds the nucleus of a cell c) material inside the cell membrane not including the nucleus d) granular material visible within the nucleus; consists of DNA tightly coiled around proteins
photosynthesis
a) process by which plants and use light energy to convert H2O and CO2 into O2 and high-energy carbs such as sugars and starc b) process in which extentions of cytoplasm surround large particles and take them into the cell c) energy-requiring process that moves material across a cell membrane against a concentration difference d) movement of specific molecules across cell membranes through protein channels
eukaryote
a) organism whose cells contain nuclei b) collection of living matter enclosed by a barrier that separates the cell from its surroundings; basic unit of all forms of l c) threadlike structure within the nucleus containing DN that is passed from one generation of cells to the next d) granular material visible within the nucleus; consists of DNA tightly coiled around proteins
prokaryote
a) unicellular organism lacking a nucleus b) organism whose cells contain nuclei c) collection of living matter enclosed by a barrier that separates the cell from its surroundings; basic unit of all forms of l d) threadlike structure within the nucleus containing the DNA that is passed from one generation of cells to the next
nucleus
a) center of the atom which contains the protons and neutrons; in cells, structure contains DNA; controls cell's activities b) organism whose cells contain nuclei c) collection of living matter enclosed by a barrier that separtes the cell from its surroundin; basic unit of all forms of life d) unicellular organism lacking a nucleus
hypotonic
a) (when comparing 2 solutions) the solution with the lesser concentration of solutes b) the center of the atom which contains the protons and neutrons; in cells, structure that contains DNA; controls cell activiti c) unicellular organism lacking a nucleus d) organism whose cells contain nuclei
active transport
a) energy-requiring process that moves material across a cell membrane against a concentration difference b) (when comparing 2 solutions) the solution wwith the lesser concentration of solutes c) the center of the atom which contains the protons and neutrons; in cells, structure that contains DNA; controls cell activity d) movement of specific molecules across cell membranes through protein channels
facilitated diffusion
a) movement of specific molecules across cell membranes through protein chennels b) (when comparing 2 solutions) the solution with the lesser concentration of solutes c) the center of the atom which contains the protons and neutrons; in cells, structure that contains DNA; controls cell activiti d) unicellular organism lacking a nucleus
phagocytosis
a) process in which extentions of cytoplasm surround large particles and take them into the cell b) energy-requiring process that moves material across a cell membrane against a concentration difference c) movement of specific molecules across cell membranes through protein channels d) (when comparing 2 solutions) the solution with the lesser concentration of solutes
diffusion
a) process by which molecules tend to move from an area where they are more concentrated to an area where they are less concentr b) process in which extentions of cytoplasm surround large particles and take them into the cell c) energy-requiring process that moves material across cell membrane against a concentration difference d) process by which plants use light energy to convert water and CO2 into oxygen and high-energy carbs such as sugars and starch
hypertonic
a) (when comparing 2 solutions) the solution with the greater concentration of solutes b) when the concentration of 2 solutions is the same c) diffusion of water through a selectively permeable membrane d) when the concentration of a solute is the same throughout a solution
isotonic
a) when the concentration of 2 solutions is the same b) diffusion of water theough a selectively permeable membrane c) when the concentration of a solute is the same throughout a solution d) process by which molecules tend to move from an area where they are more concentrated to an area where they are less concentr
equilibrium
a) when the concentration of a solute is the same throughout a solution b) process by which plants use light energy to convert water and CO2 into oxygen and high-energy carbs such as sugars and starch c) diffusion of water through a selectively permeable membrane d) process in which extentions of cytoplasm surround large particles and take them into the cell
osmosis
a) diffusion of water through a selectively permeable membrane b) when the concentration of a solute is the same throughout a solution c) process by which molecules tend to move from an area where they are more concentrated to an area where they are less concentr d) process by which plants use light energy to convert water and CO2 into oxygen and high-energy carbs such as sugars and starch
cellular respiration
a) process that releases energy by breaking down glucose and other food molecules in the presense of oxygen b) (when comparing 2 solutions) the greater concentration of solutes c) when the concentration of 2 solutions is the same d) diffusion of water through a selectively permeable membrane
nucleolus
a) small dense region within the nuclei in which the assembly of proteins begins b) domain of unicellular prokaryotes that have cell walls containing peptidoglycan c) particle made up of nucleic acid, protein, and in some cases lipids that can replicate only by infecting living cells d) process that releases energy by breaking down glucose and other food molecules in the presense of oxygen
virus
a) particle made up of nucleic acid, protein , and in some cases lipids that can replicate only by infecting living cells b) domain of unicellular prokaryotes that have cell walls containing peptidoglycan c) process that releases energy by breaking down glucose and other food molecules in the presense of oxygen d) (when comparing 2 solutions) the solution with the greater concentration of solutes
bacteria
a) domain of unicellular prokaryotes that have cell walls containing peptidglycan b) (when comparing 2 solutions) the solution with the greater concentration of solutes c) when the concentration of 2 solutions is the same d) process that releases energy by breaking down glucose and other food molecules in the presense of oxygen
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