5 Written questions
5 Matching questions
- Organ system
- a Group of organs that accomplish related tasks.
- b A hairlike structure arranged in tightly packed rows that projects from the surface of some cells.
- c The soluble portion of the cytoplasm, which includes molecules and small particles, such as ribosomes, but not the organelles covered with membranes.
- d A fiber found inside eukaryotic cells that is composed mainly of the protein actin and that has a role in cell structure and movement.
- e An organism made up of cells that have a nucleus enclosed by a membrane, multiple chromosomes, and a mitotic cycle; eukaryotes include animals, plants, and fungi but not bacteria or archaea.
5 Multiple choice questions
- A single-celled orangism that has no nucleus and has no membrane-bound organelles; examples include bacteria and archaea.
- The cytoplasmic network of protein filaments and tubes that plays an essential role in cell movement, shape, and division.
- In physical science, an atom's central region, which is made up of protons and neutrons.
- In biology, the smallest unit that can perform all life processes; cells are covered by a membrane and contain DNA and cytoplasm.
- The theory that states all living things are made up of one or more cells, that cells are the basic units of organisms, that each cell in a multicellular organism has a specific job, and that cells come only from existing cells.
5 True/False questions
Chloroplast → A type of hydrocarbon in which some or all of the hydrogen atoms are replaced by chlorine and fluorine; used in coolants for refrigerators and air conditioners and in cleaning solvents.
Ribosome → A cell organelle that contains digestive enzymes and that buds from the Golgi apparatus.
Lysosome → A cell organelle composed of RNA and protein; the site of protein synthesis.
Nucleolus → In physical science, an atom's central region, which is made up of protons and neutrons.
Phospholipid bilayer → A double layer of phospholipids that makes up plasma and organelle membranes.