Living cells and organisms A. exchange energy but not matter with their surroundings. B. exchange energy and material with their surroundings. C. are closed systems. D. are at equilibrium with their surroundings.
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- From the biological standpoint, a. What is a LIVING SYSTEM? What are its components? b. How can a living system be sustained?Match the following cellular features and activities with the properties of cells. Cell structure is highly complex and organized structurally. Cell posseses genetic information. Cells engage in metabolism. Cells sense and respond to changes in the environment. A. Mistakes in the genetic material are called mutation. B. Protein receptors on cell membranes receive specific ligands that "communicate" the presence of a simulus or stimuli. C. Cells contain "blueprints" for constructing cellular structures, for rrunning cellular activities and for making more of themselves. D. All living systems are capable of doing "work" in whatever form. E. Cell…This activity will help you remember the functions of select cellular structures. Choose 5 or more cellular structures and write an analogy about how those structures function together in an everyday system. The analogous system should be something you already know (e.g., football organization, factory, etc.). Be sure to use only one every day system that incorporates all 5+ cellular structures (and not a different, unrelated system for each structure). Be sure to: Include 5 or more cellular structures Relating all the cellular structures to a single everyday system Accurately representing the analogous functions of the cellular structures Be creative and unique
- All of the chemical reactions that occur in a cell are calleda. homeostasis. b. metabolism.c. heterostasis.d. cytoplasm.The ____________ is the basic unit of life. a. organism b. cell c. tissue d. organThe cell is the basic unit of all living things. Some organisms like Amoeba and bacteria are only one cell. Viruses are sub-cellular. Plants and animals are multicellular. Analyze how this fact is important when considering how different organism feed, respire, and excrete. Give two examples for each characteristic and use a multi- cellular organism and a uni-cellular (one-celled) organism to compare.
- Cell theory states thata. all organisms have cell walls.b. all cellular organisms undergo sexual reproduction.c. all living organisms use cells for energy, either their ownor they ingest cells of other organisms.d. all living organisms consist of cells that come from othercellsA change in ion (salt) concentrations in an animal’s body may result ina. altered membrane potentials that disrupt normal cell function.b. disruption of certain biochemical processes that occur in the cell.c. movement of water between fluid compartments.d. a and b only.e. a, b, and c.The characteristic of life that is defined as “all the chemical reactionstaking place in an organism” isa. development. c. metabolism. e. responsiveness.b. growth. d. organization.
- Multicellular organisms are composed of cells that vary in appearance. Nerve Cell Muscle Cell Skin Cell What is the most likely reason cells in organisms have different shapes? O to work at similar rates O to perform similar roles to work at different rates O to perform different rolesThe smallest unit of biological structure that meets the functional requirements of “living” is the ______. a. organ b. organelle c. cell d. macromolecule. Which of the following is not a part of the cell theory? a Cells come from pre-existing cells. b All living organisms are composed of cells. c The basic unit of life is the cell. d Cells contain membrane-bound organelles.