5 Written questions
5 Matching questions
- plasma membrane
- mitochondrial matrix
- a A membrane-enclosed sac that is part of the endomembrane system of a eukaryotic cell, having diverse functions.
- b The fluid contained within the inner membrane of a mitochondrion.
- c The membrane that sets a cell off from its surroundings and acts as a selective barrier to the passage of ions and molecules into and out of the cell; consists of a phospholipid bilayer in which are embedded molecules of protein and cholesterol.
- d An open channel in a plant cell wall through which strands of cytoplasm connect from adjacent cells.
- e A stack of hollow disks formed of thylakoid membrane in a chloroplast. Grana are the sites where light energy is trapped by chlorophyll and converted to chemical energy during the light reactions of photosynthesis.
5 Multiple choice questions
- The chemical activities of cells.
- A process by which the mitochondria and chloroplasts of eukaryotic cells probably evolved from symbiotic associations between small prokaryotic cells living inside larger cells.
- The fluid of the chloroplast surrounding the thylakoid membrane; involved in the synthesis of organic molecules from carbon dioxide and water; Sugars are made in the stroma by the enzymes of the Calvin cycle.
- A membrane-enclosed structure with a specialized function within a cell.
- A double membrane, perforated with pores, which encloses the nucleus and separates it from the rest of the eukaryotic cell.
5 True/False questions
ribosome → A cell structure consisting of RNA and protein organized into two subunits and functioning as the site of protein synthesis in the cytoplasm. The ribosomal subunits are constructed in the nucleolus.
Vesicle → A sac made of membrane in the cytoplasm of a eukaryotic cell.
nucleoid → A dense region of DNA in a prokaryotic cell.
glycoprotein → A macromolecule consisting of one or more polypeptides linked to short chains of sugars.
micrograph → A photograph taken through a microscope.