para 100A Flashcards
Levels of organization (in humans)
1-chemical 2-cells 3-tissues 4-organs 5-organ systems 6-organism
Chemical level
atoms- smallest unit of matter involved in chemical reaction
molecules- two or more atoms joined together
Cell level
the basic structural/functional units
Tissues
groups of similar cells that preform a certian function
Organs
two of more tissues grouped together to achive a specific function
organ system
two or more organs working together to create a system with a common function
organism
the collection of structural and functional systems making up any living thing
metabolism
sum of all chemical reactions that occur in the body
responsiveness
ability to detect and respond external or internal changes
movment
both voluntary and involuntary movement. includes movement of cells to movement of whole body
Growth
increase in size and complexity or increase in number of cells
differentiation
ability to change from unspecialized to specialized cells
stem cell
reproduction
formation of new cells. for growth, repair, replacment
Characteristics of human organism
- Metabolism
- Responsiveness
- Growth
- Reproduction
- Differentiation
- Movement
Homeostasis
the body’s regulatory process to maintain balance of the internal environment
3 types of fats/fatty acids
- saturated
- polyunsaturated
- monounsaturated
saturated fats
-meats, dairy some vegetables
raise cholesterol levels by inhabiting the process that normally removes excess cholesterol
polyunsaturated fats
- found in things like sunflower, corn, soybean and cottonseed oils as well as fish
- helps rid the body of newly formed cholesterol
monounsaturated fats
- vegetable, canola and olive oil
- may reduce cholesterol levels
Trans fats
“hidden fats”
baked/fried foods,
technically are unsaturated they have similar effects to saturated fats on the cholesterol levels in the blood
stages of grief
DABDA
- denial
- anger
- bargaining
- depression
- acceptance
ionic bonds
are molecules that lose or gain electrons
cations
positive ions (donated 1 or more electrons)
anion
negatively charged (gained 1 or more electrons)