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SCI220 Midterm

Midterm study notes

QuestionAnswer
What are the levels of organization of the body in order from smallest to largest? Chemical Organelle Cellular Tissue Organ System Organism
What is Homeostasis? The bodies ability to maintain the its internal environment at a set point or range.
What is an isotope? an element that contains the same number of protons but different number of neutrons as the original.
What is the Mitochondria responsible for? Catabolism; adenosine triphosphate (ATP) synthesis; a cell’s “power plants”
What is the Golgi Apparatus responsible for? Synthesizes carbohydrate, combines it with protein, and packages the product as globules of glycoprotein
What is the function of connective tissue? Supports body structures Transports substances throughout the body
What are some examples of connective tissue? Bones Joint cartilage Tendons and ligaments Blood Fat
What is compact bone? type of bone tissue that forms the hard shell of a bone
What are melanocytes? They are colored pigments to the skin and serve to decrease the amount of ultraviolet (UV) light that can penetrate into the deeper layers of the skin.
What are the layers of the epidermis from deep to superficial? stratum basale stratum spinosum Stratum granulosum stratum lucidum stratum corneum
What are the function of the skin? protection, sensation, growth, synthesis of important chemi-cals and hormones (such as vitamin D), excretion, temperature regu-lation, and immunity
What is Radiation (temp)? the transfer of heat from the sur-face of one object to that of another without actual contact between the two
Where is yellow marrow found? Medullary cavity (diaphysis) of long bones
What are the two main divisions of the skeleton Axial and appendicular
What is the longest and heaviest bone in the body? The femur
Created by: mnixon07
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