5 Written Questions

1. in eukaryotic cells, the cell organelle that is surrounded by two membranes and that is the site of cellular respiration, which produces ATP
2. type of plastid that synthesizes and stores red, yellow, and orange pigments, responsible for colors of many fruits and flowers
3. a flattened membrane sac inside the chloroplast, used to convert light energy into chemical energy; where the light reactions of photosynthesis occurs
4. A temporary, foot-like extension of a cell, used for locomotion or engulfing food
5. 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 Matching Questions

1. nuclear envelope
2. capsule
3. peroxisome
4. secretion
5. cristae

1. a double membrane perforated with pores that control the flow of materials in and out of the nucleus
2. 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.
3. c enzyme-filled vesicle in which fatty acids and amino acids are metabolized to hydrogen peroxide that is broken down to harmless products
4. d a functionally specialized substance (especially one that is not a waste) released from a gland or cell by exocytosis
5. 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

1. membrane-bound sac containing digestive enzymes that can break down proteins, nucleic acids, and polysaccharides
   1. centrosome
   2. lysosome
   3. peroxisome
   4. mesosome
2. organelle that controls all the activities of a cell and contains hereditary material made of DNA
   1. nucleolus
   2. bacillus
   3. nucleoid
   4. nucleus
3. Region in prokaryotic cell where DNA is concentrated, not enclosed by membrane
   1. nucleolus
   2. nucleoid
   3. nucleus
   4. thylakoid
4. A coiled, spiral-shaped bacterium that has endoflagella and flexes as it moves.
   1. stroma
   2. ribosome
   3. spirochete
   4. peroxisome
5. semifluid medium of the nucleus containing chromatin
   1. nucleolus
   2. chromoplast
   3. nucleoplasm
   4. leucoplast

5 True/False Questions

1. apoptosis → programmed cell death involving a cascade of specific cellular events leading to death and destruction of the cell

   True        False

2. 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.

   True        False

3. 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

   True        False

4. mesosome → plasma membrane that folds into the cytoplasm and increases surface area

   True        False

5. chloroplast → type of plastid that synthesizes and stores red, yellow, and orange pigments, responsible for colors of many fruits and flowers

   True        False