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BIO 201 Exam 1 Latest Updated 2024 WITH 100- CORRECT QUESTIONS AND ANSWERS
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BIO 201 Exam 1 Latest Updated 2024 WITH 100- CORRECT QUESTIONS AND ANSWERS
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BIO 201 Exam 1 Latest Updated 2024 WITH 100%CORRECT QUESTIONS AND ANSWERS
maintaining boundaries - ANSWER-Separation between internal and external
environments
movement - ANSWER--contractility
-happens at both gross and cellular/chemical levels
-of body parts (skeletal muscle)
-of substances (cardiac and smooth muscle)
responsiveness - ANSWER--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 - ANSWER--absorption of simple molecules into the blood
-take up nutrients to produce energy and keep life systems going
metabolism - ANSWER--all chemical reactions that occur in body cells
-encompasses both anabolism and catabolism
disposal of wastes - ANSWER--removal of wastes from metabolism and digestion
-e.g. urea, CO2, feces
reproduction - ANSWER--producing offspring to carry on life
-cellular division for growth or repair
growth - ANSWER-increase in size of a body part or of organism
-e.g. egg+sperm=zygote which divides to form human organism
microscopic anatomy - ANSWER-e.g. cytology and histology
-need a microscope/cannot see with naked eye
the cell - ANSWER-smallest living units of anything
--ECF, cytoplasm, cell membrane, cytoskeleton
Levels of organization (backwards) - ANSWER-organism, organ system, organ, tissue,
cell, (molecule/atom/organelle)
e.g human, cardiovascular system, heart, muscle tissue, muscle cell, water/protein
survival needs - ANSWER-1. nutrients
, 2. oxygen (to make ATP!)
3. water (environment of chem reactions)
4. normal body temperature (37 C)
5. appropriate atmospheric pressure (breathing, gas exchange in lungs)
epithelial tissue - ANSWER-protection, absorption, filtration, excretion, secretion,
sensory reception
eg. stomach lining and skin
*Innervated and avascular
muscle tissue - ANSWER-excitable, contractile tissue for movement
nervous tissue - ANSWER-excitable tissue used to send short term signals throughout
the body
-function is to control and communicate
eg. positive and negative feedback
connective tissue - ANSWER--living cells in a non-living matrix
-function is to support
eg. under every epithelium
structural elements of connective tissue - ANSWER-1. ground substance
2. fibers
3. cells
3 fibers of connective tissue - ANSWER-1. collagen
2. elastic
3. reticular
4 types of connective tissue - ANSWER-1. connective tissue proper
2. cartilage
3. bone
4. blood
3 types of cartilage - ANSWER-1. hyaline
2. elastic
3. fibrocartilage
Necessary Life Functions - ANSWER-1. Maintaining boundaries
2. Movement
3. Responsiveness
4. Digestion
5. Metabolism
6. Disposal of wastes/excretion
7. Reproduction
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