5 Written Questions
5 Matching Questions
- nuclear envelope
- a double membrane perforated with pores that control the flow of materials in and out of the nucleus
- b A sticky layer that surrounds the cell walls of some bacteria, protecting the cell surface and sometimes helping to glue the cell to surfaces.
- c enzyme-filled vesicle in which fatty acids and amino acids are metabolized to hydrogen peroxide that is broken down to harmless products
- d a functionally specialized substance (especially one that is not a waste) released from a gland or cell by exocytosis
- e Infoldings of the inner membrane of a mitochondrion that houses the electon transport chain and the enzyme catalyzing the synthesis of ATP.
5 Multiple Choice Questions
- membrane-bound sac containing digestive enzymes that can break down proteins, nucleic acids, and polysaccharides
- organelle that controls all the activities of a cell and contains hereditary material made of DNA
- Region in prokaryotic cell where DNA is concentrated, not enclosed by membrane
- A coiled, spiral-shaped bacterium that has endoflagella and flexes as it moves.
- semifluid medium of the nucleus containing chromatin
5 True/False Questions
apoptosis → programmed cell death involving a cascade of specific cellular events leading to death and destruction of the cell
surface-area-to volume ratio → 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.
fimbriae → fingerlike projections that create wavelike currents(peristalsis) in fluid surrounding the ovary to move the ovum into the uterine tube; Filamentous proteins on the surface of bacterial cells
mesosome → plasma membrane that folds into the cytoplasm and increases surface area
chloroplast → type of plastid that synthesizes and stores red, yellow, and orange pigments, responsible for colors of many fruits and flowers