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Level of organisatio

QuestionAnswer
What is the basic structural unit of all life? The cell
When a typical cell duplicates itself, the DNA doubles and the cell divides. What is this process called? Mitosis
Name the 4 basic types of tissues Connective tissue Muscle tissue Nerve tissue Epithelial tissue
Connective tissue Supports and connects all parts of the body. It includes adipose tissue, cartilage, bone and blood
Epithelial tissue Covers and protects the body and lines organs, vessels and cavities
Muscle tissue Contracts to produce movement
Nerve tissue Has the ability to transmit electrical impulses
Homeostasis Balanced or steady state. The body maintains homeostasis by compensating for changes in a process that involves feedback and regulation in response to internal and external changes
Metabolism The sum of all the physical and chemical reactions necessary to sustain life
Name the 2 processes of Metabolism Anabolism and Catabolism
Catabolism A destructive process by which complex substances are broken down into simple substances, usually with the release of energy. E.g. the conversion of carbohydrates in food into the glucose needed by the cells and the glycolysis (breakdown of glucose) by th
Anabolism A constructive process by which the body converts simple compounds into complex substances needed to carry out the cellular activities of the body. E.g. the body's ability to use simple substances provided by the bloodstream to synthesize or create a horm
Organs definition Structures composed of tissues that function together for a common purpose
Tissues definition Groups of similar cells that work together to perform a special function
Function of plasma membrane Encloses the cell and regulates what moves in and out of the cell
Function of flagellum Propels the sperm toward an egg
Function of microvilli Increase the surface area of the cell membrane for absorption
Function of cilia Their waving motion moves fluids around the cell
Function of nucleus The command center of the cell that contains the chromosomes or genetic material.
Function of nucleolus Makes ribosomes
Fuction of Chromosomes Govern all cell activity including reproduction
Function of Vesicles Store substances and moves them in or out of the cell
Function of Ribosomes Play a role in assembling proteins from amino acids
Function of mitochondria Play a role in energy production
Function of peroxisomes Destroy harmful substances
Function of lysosomes Digest substances within the cell
Function of Golgi apparatus Makes, sorts and prepares protein compounds for transport
Function of Endoplasmic reticulum Smooth Endoplasmic reticulum: plays a role in lipid synthesis Rough Endoplasmic reticulum: sorts proteins and creates complex substances from them
Centrioles Assist chromosome separation during cell division
Cytoplasm Site of numerous cellular activities
Main Organs of the Digestive system Stomach Small and large intestines
Main Organs of the Urinary system Kidneys Urinary bladder
Main Organs of the Resiratory system Lungs
Main Organs of the Circulatory system Heart Blood vessels
Main Organs of the Skeletal system Bones
Main Organs of the Muscular system Voluntary and involuntary muscles
Organs of the Endocrine system Endocine glands: Thyroid gland, testes, ovaries, adrenal glands, pituitary gland
Main organs of the Nervous system Brain Spinal cord
Main organ of the Integumentary system Skin
Created by: cisca
 

 



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