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Unit 2 Quizzes
| Question | Answer |
|---|---|
| Cells that contain organelles such as a nucleus, plastids, vacuoles and other membrane bound organelles are classified as which of the following? a. bacterial b. prokaryotic c. eukaryotic d. differentiated | c. eukaryotic |
| A cell is observed that contains chloroplasts, has a large central vacuole and cell walls. It would be classified as which of the following? a. differentiated cell b. animal cell c. prokaryotic cell d. plant cell | d. plant cell |
| Which of the following is true according to the cell theory? a. all cells are identical in size and shape b. cells arise spontaneously from nonliving substances c. all living things are composed of cells | c. all living things are composed of cells |
| Ribosomes are the site of which important cell function? a. photosynthesis b. protein synthesis c. cellular respiration d. cellular reproduction | b. protein synthesis |
| Muscle cells are actively engaged in using energy. This means they would have many copies of which of these organelles? a. lysosomes b. mitochondria c. vacuoles d. chloroplasts | b. mitochonrdia |
| Which of the following structures is found in animals cells but not plant cells? a. cell wall b. central vacuole c. chlorophyll d. centriole | d. centriole |
| Which of the following structures contains DNA? a. mitochondria b. nucleus c. all contain DNA d. chloroplast | c. all contain DNA |
| The cell wall has which of the following primary functions? a. allows cells to form compartments to organize internal material b. serves to hold the cell together c. controls what enters and leaves the cell d. provides support and strength | d. provides support and strength |
| The ____ is the basic unit of life a. organ b. tissue c. organism d. cell | d. cell |
| Which of the following is found both in eukaryotic and prokaryotic cells? a. mitochondrion b. vacuole c. ribosomes d. nucleus | c. ribosomes |
| You observed some cells through a microscope. You saw ribosomes but no mitochondria. What type of cell would this most likely be? a. bacterial cell b. plant cell c. animal cell | a. bacterial cell |
| Which organism below can carry on photosynthesis? a. elodea b. amoeba | a. elodea |
| Which organism has a cell wall? a. elodea b. amoeba | a. elodea |
| A cell without a cell wall is probably also missing which organelle? a. cell membrane b. chloroplast c. ribosome d. mitochondria | b. chloroplast |
| If a cell lacked ribosomes, what type of molecule synthesis would be absent? a. protein b. lipid c. nucleic acid d. carbohydrate | a. protein |
| Water moves via osmosis ________________ a. from an area with a low concentration of water to one of higher concentration b. from an area with a high concentration of water to an area of lower concentration of water c. throughout the cytoplasm | b. from an area with a high concentration of water to an area of lower concentration of water |
| Which of the following substances would have the most trouble crossing a biological membrane by diffusing through the lipid bilayer? a. O2 b. CO2 c. Ethane (C2H6) d. Na+ | d. Na+ |
| The following are all methods of cell transport that require energy EXCEPT: a. phagocytosis b. facilitated diffusion c. pinocytosis d. active transport | b. facilitated diffusion |
| Osmosis is a form of which type of movement into a cell? a. diffusion b. active transport c. hydrolysis d. exocytosis | a. diffusiono |
| Which of the following can affect the rate of diffusion of material into a cell? a. molecule size b. all options are correct c. concentration d. temperature | b. all options are correct |
| The movement of materials against a concentration gradient and across a membrane is known as which type of movement? a. osmosis b. passive transport c. active transport d. diffusion | c. active transport |
| The cell membrane is considered a mosaic. Which selection best describes it? a. a single lipid layer covered with proteins on both sides b. protein bilayer embedded with lipids c. lipid bilayer embedded with proteins | c. lipid bilayer embedded with proteins |
| Which of the following is not a form of active transport? a. active transport b. receptor-mediated endocytosis c. facilitated diffusion d. phagocytosis | c. facilitated diffusion |
| The principal force driving the movement in diffusion is the ________. a. temperature b. membrane surface area c. concentration gradient d. particle size | c. concentration gradient |
| What is the combination of an electrical gradient and a concentration gradient called? a. electrochemical gradient b. electrical potential c. potential gradient d. concentration gradient | a. electrochemical gradient |
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mortehay000
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