5 Written Questions
5 Matching Questions
- What is a negative feedback mechanism?
- What is contained in the thoracic cavity?
- Describe a Hydrogen bond?
- Describe a covalent bond?
- What is the anatomical position of the body?
- a 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)
- b Standing with legs shoulder width apart, arms down by side with palms forward
- c Covalent bonds share electrons between atoms
(ex: H20 or water)
- d Heart and lungs
- e bodys response to stimuli reverses the stimulus in effect turning it off for a while and keeps the body within normal range
5 Multiple Choice Questions
- 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
- name for energy production within cells and involves the respiratory gases: oxygen and carbon dioxide
(ex: glucose and oxygen combine to make carbon dioxide, water, ATP and heat)
- 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)
- 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)
- A solution with a higher salt concentration than in the cells
(cells shrink) LESS WATER THAN IN CELL
5 True/False Questions
What is a gene? → A genetic code for protein
What is the cell nucleus and what is its function? → Nucleus is within the cytoplasm and has a nuclear membrane with nucleoli and chromosomes of the cell. Nucleolus is where DNA and all genetic info for human traits lies.
What are the two types of epithelial membranes? → 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)
What are the 7 types of connective tissue? → 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 a positive feedback mechanism? → the response to stimuli does not stop but rather keeps the sequence of events going. (requires an external brake)
EX: cervical stretching during childbirth