Bio 204 final/ quiz questions/ new material
1. What is form and function?: -form= anatomy-biological form of an organism
-Function= physiology- biological functions an organism performs
2. What results among animals facing similar stresses? What is responsible for
this?: -convergent evolution
-Physical laws govern the shape and size of animal anatomy
3. What must pass through cell membranes by diffusion?: -Nutrients
-gasses
-wastes
4. What is the relationship between the size of a cell and rate of exchange?: -rate
of exchange is proportional to a cell's surface area while amount of exchange material is proportional to a cell's volume
5. Unicellular organisms living in water have sufficient....?: Surface area for exchange
6. What do multicellular organisms with a sac like body plan have?: body walls that
are only two cells thick, facilitating diffusion of materials
,7. In flat animals how do they exchange with the environment: all cells are in contact
with environment
8. What do more complex organisms have for exchange with the environment?-
: -have adaptations for increasing surface area
9. What does the interstitial fluid do in vertibrates?: space between cells is filled with interstitial
fluid for exchange of material
10. What is the organization of animal bodies?: Cells-tissues-organs-organ systems
11. What are the 4 categories of tissues and why are there different ones?: -Ep-
ithelial, connective, muscle, nervous
-Different tissues have different structures based on function
12. what is epithelial tissue?: -lines the surface of the body, organs, and body cavities (cells are closely
joined)
-Categorized based on shape and arrangement
13. What is connective tissues?: -binds and supports other tissues
,-contains sparsely packed cells in extracellular matrix (fibers in liquid, jelly, or solid)
14. What are the 3 proteinaceous fibers in matrix?: -Collagen: provides strength and flexibility
-Reticular fibers: connects connective tissue to other tissues
-Elastic fibers: stretch and snap back to original length
, 15. What is muscle tissue?: -Responsible for body movement
-consists of fibers of actin and myosin (protein)
16. What are the 3 types of muscle tissue?: -Skeletal: voluntary motion
-Smooth: involuntary motion
-Cardiac: contraction of heart
17. What is nervous tissue?: -receives, transmits, and processes information
-Neurons: nerve cells that transmit nerve impulses
-Glial cells (glia): support neurons
18. What is homeostasis?: -Maintenance of internal environment regardless of external movement
-Fluctuations above or below a set point detected by a sensor serve as a stimulus, which triggers a response to return
body to set point
19. How is homeostasis maintained?: -regulating or conforming
-Regulator: internal mechanisms control body (metabolism) (endothermy)
-Conformer: external factors control body (ambient temperature) (ectothermy)
20. What is homeothermy?: -Body temperature is relatively constant
21. What is poikilothermy?: -Body temperature fluctuates
1. What is form and function?: -form= anatomy-biological form of an organism
-Function= physiology- biological functions an organism performs
2. What results among animals facing similar stresses? What is responsible for
this?: -convergent evolution
-Physical laws govern the shape and size of animal anatomy
3. What must pass through cell membranes by diffusion?: -Nutrients
-gasses
-wastes
4. What is the relationship between the size of a cell and rate of exchange?: -rate
of exchange is proportional to a cell's surface area while amount of exchange material is proportional to a cell's volume
5. Unicellular organisms living in water have sufficient....?: Surface area for exchange
6. What do multicellular organisms with a sac like body plan have?: body walls that
are only two cells thick, facilitating diffusion of materials
,7. In flat animals how do they exchange with the environment: all cells are in contact
with environment
8. What do more complex organisms have for exchange with the environment?-
: -have adaptations for increasing surface area
9. What does the interstitial fluid do in vertibrates?: space between cells is filled with interstitial
fluid for exchange of material
10. What is the organization of animal bodies?: Cells-tissues-organs-organ systems
11. What are the 4 categories of tissues and why are there different ones?: -Ep-
ithelial, connective, muscle, nervous
-Different tissues have different structures based on function
12. what is epithelial tissue?: -lines the surface of the body, organs, and body cavities (cells are closely
joined)
-Categorized based on shape and arrangement
13. What is connective tissues?: -binds and supports other tissues
,-contains sparsely packed cells in extracellular matrix (fibers in liquid, jelly, or solid)
14. What are the 3 proteinaceous fibers in matrix?: -Collagen: provides strength and flexibility
-Reticular fibers: connects connective tissue to other tissues
-Elastic fibers: stretch and snap back to original length
, 15. What is muscle tissue?: -Responsible for body movement
-consists of fibers of actin and myosin (protein)
16. What are the 3 types of muscle tissue?: -Skeletal: voluntary motion
-Smooth: involuntary motion
-Cardiac: contraction of heart
17. What is nervous tissue?: -receives, transmits, and processes information
-Neurons: nerve cells that transmit nerve impulses
-Glial cells (glia): support neurons
18. What is homeostasis?: -Maintenance of internal environment regardless of external movement
-Fluctuations above or below a set point detected by a sensor serve as a stimulus, which triggers a response to return
body to set point
19. How is homeostasis maintained?: -regulating or conforming
-Regulator: internal mechanisms control body (metabolism) (endothermy)
-Conformer: external factors control body (ambient temperature) (ectothermy)
20. What is homeothermy?: -Body temperature is relatively constant
21. What is poikilothermy?: -Body temperature fluctuates
