5 Written questions
5 Matching questions
- cell theory
- a aerobic rod-shaped spore-producing bacterium
- b A coiled, spiral-shaped bacterium that has endoflagella and flexes as it moves.
- c a microscopic network of actin filaments and microtubules in the cytoplasm of many living cells that gives the cell shape and coherence
- d idea that all living things are composed of cells, cells are the basic units of structure and function in living things, and new cells are produced from existing cells
- e A structure in an animal cell composed of cylinders of microtubule triplets arranged in a 9 + 0 pattern. An animal cell usually has a pair of centrioles involved in cell division.
5 Multiple choice questions
- A sticky layer that surrounds the cell walls of some bacteria, protecting the cell surface and sometimes helping to glue the cell to surfaces.
- programmed cell death involving a cascade of specific cellular events leading to death and destruction of the cell
- The complex of DNA and proteins that makes up a eukaryotic chromosome. When the cell is not dividing, it exists as a mass of very long, thin fibers that are not visible with a light microscope.
- a circular DNA molecule that is usually found in bacteria and that can replicate independent of the main chromosome
- Photosynthetic, oxygen-producing bacteria (formerly known as blue-green algae).
5 True/False questions
endoplasmic reticulum → System of internal membranes within the cytoplasm. Membranes have the presence of ribosomes; functions in transport of substances such as proteins within the cytoplasm
stroma → an area within a chloroplast that lies between the thylakoid membranes; serves as the site of the Calvin cycle in photosynthesis which involves the synthesis of carbohydrates
pseudopod → group of closely related plant organelles that are used for storage of starches, lipids, or pigments; includes chloroplasts, chromoplasts, and amyloplasts (leucoplasts).
intermediate filament → rope-like assemblies of fibrous polypeptides in the cytoskeleton that provide support and strength to cells; A component of the cytoskeleton that includes all filaments intermediate in size between microtubules and microfilaments.
nucleus → organelle that controls all the activities of a cell and contains hereditary material made of DNA