5 Written Questions

1. A protein that speeds up chemical reactions in a living thing.
2. Short, numerous projections that look like hairs.
3. A protein framework inside the cell that gives the cell its shape.
4. thin, hollow cylinders made of protein.
5. The movement of materials through a cell membrane using energy.

5 Matching Questions

1. osmosis
2. RNA
3. unicellular
4. carbohydrate
5. chlorophyll,

1. a The green pigment in chloroplasts.
2. b An energy-rich organic compound made of the elements carbon, hydrogen, and oxygen.
3. c The diffusion of water molecules through a selectively permeable membrane.
4. d Made of a single cell.
5. e A nucleic acid that plays an important role in the production of proteins.

5 Multiple Choice Questions

1. A cell structure that forms passageways through which proteins and other materials are carried through the cell. Specific proteins are created here.
   1. endoplasamic reticulum,
   2. multicellular
   3. cytoplasm,
   4. microtubules,
2. a prominent organelle inside the nucleus.
   1. nucleolus,
   2. vacuole,
   3. cell
   4. nucleus,
3. A group of similar cells that perform the same function.
   1. tissue
   2. enzyme
   3. lipid
   4. cilia,
4. Any substance that cannot be broken down into simpler substances.
   1. DNA
   2. element
   3. enzyme
   4. protein
5. A rigid layer of non-living material that surrounds the cell of plants and some other organisms, providing structure.
   1. cell
   2. cilia,
   3. cell wall,
   4. cell theory,

5 True/False Questions

1. amino acid → Very large organic molecule made of carbon, oxygen, hydrogen, nitrogen, and phosphorus, that contains, the instructions cells need to carry out all the functions of life.

   True        False

2. organ systems → A group of organs that work together to perform a major function in the body.

   True        False

3. passive transport → The movement of materials through a cell membrane without using the cell's energy.

   True        False

4. eukaryote → Unicellular organisms that do not have membrane bound organelles.

   True        False

5. compound → Two or more elements that are chemically combined.

   True        False