5 Written questions
5 Matching questions
- Cell Theory
- gap junction
- a Active transport process where a cell engulfs materials with a portion of the cell's plasma membrane and releases the contents inside of the cell to form a vacuole.
- b Second Stage of Cell division: Centromeres of duplicated chromosomes are aligned at plate. chromosomes become attached to spindle fibers
- c (biology) the basic structural and functional unit of all organisms
- d Communicating Junctions; channels that allow small molecules to flow through protein-lined pores between cells. common in the heart and embryonic cells.
- e 1. All living things are made of cells
5 Multiple choice questions
- A substance produced by a living organism that acts as a catalyst to bring about a specific chemical reaction
- After the chromosome seperates, the cell seals off, Final Phase of Mitosis., A cleavage furrow forms during this phase, two nuclei are formed
- Diffusion of water through a selectively permeable membrane
- Energy-requiring process that moves material across a cell membrane against a concentration difference or gradient
- 3rd phase; the chromatids of each chromosome separate at the centromere and move in opposite poles of the spindle.
5 True/False questions
hypotonic solution → A solution in which the concentration of solutes is greater than that of the cell that resides in the solution.,causes a cell to shrink because of osmosis
chromosome → A threadlike, gene-carrying structure found in the nucleus. consists of one very long DNA molecule and associated proteins.
membrane junction → Cells are tightly bound, prevent fluids and most molecules from moving between cells. Useful in places such as the stomach and kidneys. types are desmosomes, tight junctions, and gap junctions
anticodon → A sequence of three nucleotide bases on mRNA that refers to a specific amino acid. (if DNA triplets are AAT-CGT-TCG then related _____ on mRNA would be UUA-GCA-AGC
desmosome → Anchoring junctions that prevents cells subjected to mechanical stress from being pulled apart; two adjacent cells are attached. formed from protein plaques in the the cell membranes linked by protein filaments