5 Written Questions

1. A protozoan that propels itself with a flagellum
2. A substance (made of sugars) that is common in the cell walls of many organisms
3. A firm, flexible coating outside the plasma membrane
4. A relationship between two organisms of different species where one benefits and the other is harmed
5. Tiny floating organisms that are either small animals or protozoa

5 Matching Questions

1. Mutualism
2. Sessile Colony
3. Plankton
4. Phytoplankton
5. Symbiosis

1. a A relationship between two or more organisms of different species where all benefit from the association
2. b Tiny floating photosynthetic organisms, primarily algae
3. c A colony that uses holdfasts to anchor itself to an object
4. d A close relationship between two or more species where at least one benefits
5. e Tiny organisms that float in the water

5 Multiple Choice Questions

1. The dense cytoplasm found in the interior of many cells
   1. Endoplasm
   2. Chloroplast
   3. Mutualism
   4. Ectoplasm
2. A light-sensitive region in certain protozoa
   1. Spore
   2. Pseudopod
   3. Plankton
   4. Eyespot
3. A membrane-bounded "sac" within a cell
   1. Pellicle
   2. Spore
   3. Vacuole
   4. Cellulose
4. Hairlike projections that extend from the plasma membrane and are used for locomotion
   1. Cilia
   2. Vacuole
   3. Spore
   4. Nucleus
5. The thin, watery cytoplasm near the plasma membrane of some cells
   1. Chloroplast
   2. Ectoplasm
   3. Mutualism
   4. Endoplasm

5 True/False Questions

1. Nucleus → The body of a plant-like organism that is not divided into leaves, roots, or stems

   True        False

2. Pseudopod → A temporary, foot-like extension of a cell, used for locomotion or engulfing food

   True        False

3. Chloroplast → An organelle containing chlorophyll for photosynthesis

   True        False

4. Chlorophyll → An organelle containing chlorophyll for photosynthesis

   True        False

5. Commensalism → A relationship between two organisms of different species where one benefits and the other is neither harmed nor benefited

   True        False