5 Written Questions
5 Matching Questions
- Describe a chemical bond?
- What are the serous membranes and where they are located?
- What is cytoplasm?
- What is contained in the spinal cavity?
- What are the two types of epithelial membranes?
- a Spinal vertebre
- b Force or attraction between positive and negative charges that keeps atoms closely together
- c a watery solution (cytosol) of minerals, gases, organic molecules and cell organelles are found. it gives the cell its shape
- d Serous membranes are in closed body cavities where the serous fluid prevents friction between the two layers of the serous membrane.
---Thoracic cavity: partial pleura lines chest wall and cisceral pleura covers the lungs.
---Pericardial sac: parietal pericardium lines the fibrous pericardium and the visceral pericardium covers the heart muscle.
---Abdominal cavity: peritoneum lines the abdominal cavity and mesentary covers the abdominal organs
- 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
- movement of molecules from an area of greater concentration to an area of lesser concentration along the concentration gradient. Very slow process. FOR MOLECULES
(Example: exchange of gases in lungs or body tissues)
- Line the body tracts open to the environment
---respiratory , digestive, urinary and reproductive
---mucus keeps the living epithelium we and provides lubrication in the digestive tract
---traps dust and bacteria in the respiratory tract
- meninges line the cranial and spinal cavities and cover the brain and spinal cord. They "line" and "cover".
- 1. Chemical bonds
2. Ionic bonds
3. Covalent bonds
4. Disulfide and Hydrogen bonds
- 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)
5 True/False Questions
What is a positive feedback mechanism? → secretion of an endocrine gland that has effects on target organs
(ex: Insulin - enables cells to take in glucose and lowers glucose levels. Growth hormone - increases protein synthesis and cell division)
What is contained in the cranial cavity? → Spinal vertebre
Identify the layers of epithelium → 1. Simple squamous -one layer of flat cells (alveoli of lungs, permits diffusion of gases)
2. Stratified squamous- many layers of cells (epidermis, lining of esophagus and vagina)
3. Transitional- many layers of cells (lining of bladder, permits expansion)
4. Cuboidal- one layer of cube shaped cells (thyroid gland, salivary gland, kidney tubules) excretory
5. Columnar- One layer of column shaped cells (lining of stomach, lining of small intestine and absorbs products in digestion)
6. Ciliated- one lay of columnar cells with cilia on free surfaces (lining of trachea to sweep mucus and dust pharynx and lining of fallopian tube to sweep ovum toward uterus)
What is isotonic? → A solution with the same salt concentration as in cells
Where is genetic coding found? → In the DNA of our chromosomes or our genome. It is found in the cell nucleus.