Life Processes Flashcards
1
Q
four basic processes of life
A
- organization
- metabolism
- movements
- responsiveness
- reproduction
2
Q
others
A
- growth 7.differentiation 8.respiration
9. digestion 10.excretion
3
Q
- organization
A
each component of the body as a function to perform as well as works with other components
4
Q
- Metabolism
A
-all chemical reactions in body that keep internal environment stable
5
Q
- Metabolism eg
A
catabolism: complex substances broken down to simpler building blocks, energy released
6
Q
- Movement
eg
- cellular level
- blood
- contractility
A
- molecules move one place to another
- move one part of body to other
- muscle fibres shorten to produce movement
7
Q
- Responsiveness
- definition
- act of
A
- detecton of change in external and internal environment, then react to change
- sense stimulus and react to it
8
Q
- Reproduction
- 2 referrals
A
- refer to formation of a person
- cellular reproduction : formation of new cells for replacement and repair of old cells
9
Q
- Growth
- define
- what must occur for growth to take place
A
- increase in number or size of cells
- anabolic processes must be faster than catabolic processes
10
Q
- Differentiation
- type of process
- what happens
- due to it cells develop into
A
- development process
- unspecialized cells change into specialized cells with structural and functional properties
- tissues and organs
11
Q
- Respiration
- refer to
- includes
A
- process of exchange of oxygen and CO2 between cells and external environment
- ventilation, cellular respiration
12
Q
- Digestion
A
- process of breaking down complex ingested food into simple molecules that can be absorbed in blood and used for body
13
Q
- Excretion
A
- removes waste products of digestion and metabolism
- get rid of substance body not able to use
14
Q
Life processes
- ensures
- also depends on physical factors of
A
- survival
- water, oxygen
