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25 Cards in this Set
- Front
- Back
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What does a eukaryotic cell have that a prokaryotic cell does not?
a)DNA b)organelles c)cell wall d)cell membrane |
b)organelles
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What tool did scientist use to gather information to form the cell theory?
a)thermometer b)microscope c)graduated cylinder d)triple beam balance |
b)microscope
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What characteristics are shared by most cells?
a)most cells have membrane bound organelles and a nucleus b)most cells contain cytoplasm, are enclosed by membrane and have a nucleus c)most cells are microscopic, enclosed by a membrane and contain cytoplasm d)most cells are seen by the unaided eye and are enclosed by a membrane |
c)most cells are microscopic, are enclosed by a membrane and contain cytoplasm
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In what ways are cells similar to atoms?
a)both are basic units or building blocks b)both are alive c)both have electron cells d)both can be viewed under a light microscope |
a)both are basic units or building blocks
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Would a poison that kills human cells by blocking pores in the nuclear membrane also kill bacteria?
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No, bacteria do not have a nucleus on which the poison can act
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Which is NOT a function of the cytoskeleton?
a)supports and shapes the cell b)provides strength c)transports waste outside the cell d)aids in cell movement |
b)transports waste outside the cell
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What characteristics do mitochondria and chloroplast share?
a)both have DNA and internal and external membranes b)both are in animal cells c)both contain enzymes and can break down waste d)both line the endoplasmic reticulum and aid in making proteins |
a)both have DNA and external and internal membranes
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What structure is only found in plant cells?
a)nucleus b)vesicle c)vacuole d)cell wall |
d)cell wall
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What is the function of the nucleus?
a)it makes proteins b)it provides the cell with energy c)it stores information d)it transports materials within the cell |
c)it stores infomtation
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What organelle is a membrane-bound sac that divides material from the rest of the cell and transports material around the cell?
a)vacuole b)vesicle c)ribosome d)endoplasmic reticulum |
b)vesicle
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What materials make up the cell membrane?
a)phospholipids and proteins b)cholesterol and nucleic acids c)proteins, nucleic acids, and cholesterol d)phospholipids, cholesterol, and proteins |
d)phospholipids, cholesterol, and proteins
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What type of receptor is within a cell?
a)membrane receptor b)intercellular receptor c)intracellular receptor d)ligand receptor |
c)intracellular receptor
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How are receptors similar to enzymes?
a)Both are located in the cell membrane b)Both are proteins that can cause a reaction or response c)Both speed up chemical reactions d)There are no similarities |
b)both are proteins that can cause a reaction or response
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What type of membrane allows some but not all materials to pass?
a)diffusible b)permeable c)impermeable d)selectively permeable |
d)selectively permeable
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What part of a phopholipid is hydrophobic?
a)phosphate group and glycerol head b)fatty acid tails c)phosphate group only d)the entire phosopholipid molecule |
b)fatty acid tails
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What term describes the difference in concentration of a substance from one location to another?
a)high concentration b)low concentration c)concentration gradient d)molecular gradient |
c)concentration gradient
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How does facilitated diffusion differ from diffusion?
a)It requires energy b)No energy is needed c)molecules diffuse through the cell membrane d)Molecules diffuse through transport proteins |
d)molecules diffuse through transport proteins
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What term describes the diffusion of water through a semipermeable membrane down a concentration gradient?
a)osmotic pressure b)osmosis c)hydro-diffusion d)fluid diffusion |
b)osmosis
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In which kind of solution would water move from the solution into the cell?
a)hypotonic b)hypertonic c)isotonic d)hydrotonic |
a)hypotonic
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What would make a hypotonic solution isotonic?
a)add more solutes b)add more solutes and water c)add more water d)remove water |
add more water
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What term describes the movement of molecules from an area of low concentration to an area of high concentration?
a)passive transport b)active transport c)energy transport d)concentration gradient |
b)active transport
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How does diffusion differ from endocytosis and exocytosis?
a)Diffusion moves large molecules across the cell membrane b)diffusion requires energy input from the cell c)diffusion does not require energy input from the cell d)diffusion transports water across the cell membrane |
c)diffusion does not require energy input from the cell
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Through what type of proteins does active transport occur?
a)transport proteins b)intracellular proteins c)enzymes d)receptors |
a)transport proteins
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What is phagocytosis?
a)a type of exocytosis in which the cell expels large proteins b)a type of exocytosis in which the cell expels water c)a type of endocytosis in which the cell takes in fluids d)a type of endocytosis in which the cell takes in large particles |
d)a type of endocytosis in which the cell takes in large particles
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Is energy required to move oxygen molecules across the cell membrane, from an area of high concentration to an area of low concentration?
d)No, oxygen bonds with water molecules to diffuse across the cell membrane a)Yes, oxygen does not move across the cell membrane without energy b)Yes, oxygen molecules don't move from an area of high concentration to low concentration without energy c)No,oxygen diffuses across the cell membrane which does not require energy |
c)No, oxygen diffuses across the cell membrane which does not require energy
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