Structure Levels Flashcards
(22 cards)
What is health?
Health is a state of complete mental, physical, and social well being and not merely the absence of infirmity
What is a disease?
A Disease is any disorder in the body caused by some natural or harmful agent, and resulting in part or the whole body not functioning properly
What is movement?
Movement is the ability to change position
What is excretion?
Excretion is the removal of metabolic waste from the body ( carbon dioxide and urea)
What is reproduction?
Reproduction is the making of offspring
What is respiration?
Respiration is the release of energy from food
What is irritability?
Irritability is the response to stimuli
What is nutrition?
Nutrition is the study of food
What is growth?
Growth is the ability to increase in size and complexity
Who discovered cells?
Robert Hooke discovered cells
What is the living part of the cell?
The protoplasm is the living part of the cell
What parts make up the protoplasm?
- Nucleus
- Cytoplasm
- Cell Membrane
What is the function of the cell membrane?
The cell membrane controls what substances enter or exit the cell
What is the function of the nucleus?
The nucleus controls the activities of the cell
What is a chromosome?
A chromosome is threadlike structures composed of DNA
How many chromosomes do humans have?
46 Chromosomes
What is the function of genes?
Genes determine the characteristics of an organism
What is cytoplasm?
Cytoplasm is a jelly-like substance where most of the cell’s chemical takes place here
What is an organelle?
An organelle is a specialized part of the cell that carries out a specific function
What are glycogen granules?
Glycogen granules are a part of the cell that stores food
What is a mitochondrion?
The mitochondrion stores energy by respiration
What are vacuoles?
Vacuoles stores substances
