5 Written questions
5 Matching questions
- What is cellular respiration?
- What are the different kinds of bonding atoms?
- What is meiosis?`
- What is a buffer and what does it do?
- Describe an ionic bond?
- a Involves loss of electron of one atom and the gaining of an electron on another atom (ex: NaCl or salt)
- b process of cell division that results in the formation of gametes which are egg and sperm cells.
(used for creating human life)
- c 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)
- d 1. Chemical bonds
2. Ionic bonds
3. Covalent bonds
4. Disulfide and Hydrogen bonds
- e 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)
5 Multiple choice questions
- urinary bladder and reproductive organs
- Positive and negative feedback mechanisms
- synthesis reactions: bonds are formed to join two or more atoms to make a new compound
(ex: proteins are sythesized by the bonding of many amino acids)
decomposition reactions: bonds are broken and a large molecule is changed to two or more smaller ones
(ex: digestion of starch into many smaller glucose molecules)
- ability of the body to maintain a relatively stable metabolism and to function normally despite changes
- 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
5 True/False questions
Describe a covalent bond? → Covalent bonds share electrons between atoms
(ex: H20 or water)
What are the cell organelles and what do they do? → 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 facilitated diffusion and how does it work? → 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)
What is a gene? → A genetic code for protein
What are the mucous membranes and where are they located? → 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