5 Written questions
5 Matching questions
- cell theory
- a Photosynthetic, oxygen-producing bacteria (formerly known as blue-green algae).
- b 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
- c enzyme-filled vesicle in which fatty acids and amino acids are metabolized to hydrogen peroxide that is broken down to harmless products
- d any spherical or nearly spherical bacteria
- e A sticky layer that surrounds the cell walls of some bacteria, protecting the cell surface and sometimes helping to glue the cell to surfaces.
5 Multiple choice questions
- a microscopic network of actin filaments and microtubules in the cytoplasm of many living cells that gives the cell shape and coherence
- programmed cell death involving a cascade of specific cellular events leading to death and destruction of the cell
- organelle found in cells of plants and some other organisms that captures the energy from sunlight and converts it into chemical energy (photosynthesis)
- 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.
- membrane-bound sac containing digestive enzymes that can break down proteins, nucleic acids, and polysaccharides
5 True/False questions
polyribosome → string of ribosomes simultaneously translating regions of the same mRNA strand during protein synthesis
plasmid → group of closely related plant organelles that are used for storage of starches, lipids, or pigments; includes chloroplasts, chromoplasts, and amyloplasts (leucoplasts).
nucleoid → Region in prokaryotic cell where DNA is concentrated, not enclosed by membrane
matrix → unstructured semifluid substance that fills the space between cells in connective tissues or inside organelles, the surface area exposed to fluids, such as where the production of energy takes place, in a mitochondrion
nuclear pore → Region in prokaryotic cell where DNA is concentrated, not enclosed by membrane