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BIO 201 Exam 1 and Answers
epithelial tissue - Answers✓✓protection, absorption, filtration, excretion, secretion, sensory
reception
eg. stomach lining and skin
*Innervated and avascular
muscle tissue - Answers✓✓excitable, contractile tissue for movement
nervous tissue - Answers✓✓excitable tissue used to send short term signals throughout the
body
-function is to control and communicate
eg. positive and negative feedback
connective tissue - Answers✓✓-living cells in a non-living matrix
-function is to support
eg. under every epithelium
structural elements of connective tissue - Answers✓✓1. ground substance
2. fibers
3. cells
3 fibers of connective tissue - Answers✓✓1. collagen
2. elastic
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3. reticular
4 types of connective tissue - Answers✓✓1. connective tissue proper
2. cartilage
3. bone
4. blood
3 types of cartilage - Answers✓✓1. hyaline
2. elastic
3. fibrocartilage
Necessary Life Functions - Answers✓✓1. Maintaining boundaries
2. Movement
3. Responsiveness
4. Digestion
5. Metabolism
6. Disposal of wastes/excretion
7. Reproduction
8. Growth
maintaining boundaries - Answers✓✓Separation between internal and external environments
movement - Answers✓✓-contractility
-happens at both gross and cellular/chemical levels
-of body parts (skeletal muscle)
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-of substances (cardiac and smooth muscle)
responsiveness - Answers✓✓-ability to sense and respond to stimuli
-stimulus=change in the environment
-e.g. your body gets hot, you need to cool down, withdrawal reflex
-irritability=an organism responding to a change in their environment
-adaptability=the potential an organism has to make this change
digestion - Answers✓✓-absorption of simple molecules into the blood
-take up nutrients to produce energy and keep life systems going
metabolism - Answers✓✓-all chemical reactions that occur in body cells
-encompasses both anabolism and catabolism
disposal of wastes - Answers✓✓-removal of wastes from metabolism and digestion
-e.g. urea, CO2, feces
reproduction - Answers✓✓-producing offspring to carry on life
-cellular division for growth or repair
growth - Answers✓✓increase in size of a body part or of organism
-e.g. egg+sperm=zygote which divides to form human organism
microscopic anatomy - Answers✓✓e.g. cytology and histology