5 Written questions
5 Matching questions
- What is contained in the thoracic cavity?
- What is a buffer and what does it do?
- What are the 2 major types of membranes found in the body?
- What is contained in the spinal cavity?
- What are the two types of epithelial membranes?
- a A buffer system is a chemical or pair of chemicals that minimizes changes in pH by reacting with strong acids or strong bases
(ex: buffer bonds to H+ ions when body fluid is becoming too acidic or release H+ ions when fluid becomes too alkaline)
- b 1. Epithelial membranes
2. Connective Tissue membranes
- c Heart and lungs
- d Spinal vertebre
- e Serous membranes: line some closed body cavities and cover the organs in those cavities (thoracic and abdominal cavities) CAVITIES THAT AREN'T OPEN TO AIR
Mucous Membranes: line the body tracts that have openings to the environment and have a mucous membrane to keep the lining of the cells wet (vagina, trachea, esophagus and stomach)
5 Multiple choice questions
- urinary bladder and reproductive organs
- Force or attraction between positive and negative charges that keeps atoms closely together
- meninges line the cranial and spinal cavities and cover the brain and spinal cord. They "line" and "cover".
- A solution with a higher salt concentration than in the cells
(cells shrink) LESS WATER THAN IN CELL
5 True/False questions
What is homeostasis? → Cell division involving one cell with the diploid number of chromosomes dividing into two identical cells.
(used for repair of tissues and growth of the organism)
What is facilitated diffusion and how does it work? → molecules move through a membrane from an area of greater concentration to an area of lesser concentration with the help of a carrier enzyme
(Example: intake of glucose by most cells)
What is hypotonic? → A solution with lower salt concentration than in the cells
(cells burst) MORE WATER THAN IN CELL
What is isotonic? → A solution with the same salt concentration as in cells
Describe a Hydrogen bond? → does not involve the sharing of electrons but results in hydrogen atoms
(ex: water molecules are attracted to nearby water molecules to form surface tension)