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Final Review Cushing

Review Open Chapter 2, 3 ,4

Cell The smallest unit that can perform all life processes; cells are covered by a membrane and have DNA and cytoplasm.
Stimulus Anything that causes a reaction or change in an organism or any part of an organism.
Homeostasis The maintenance of a constant internal stale in a changing environment.
Sexual Reproduction Reproduction in which the set cells from two parents unite, producing offspring that share traits from both parents.
Asexual Reproduction Reproduction that does not involve the union of sex cells and in which one parent produces offspring identical to itself.
Metabolism the sum of all chemical processes that occur in an organism
Heredity the passing of genetic traits from parent to offspring
Producer an organism that can make its own food by using energy from its surroundings
Consumer an organism that eats other organisms or organic matter
Decomposer an organism that gets energy by breaking down the remains of dead organisms or animal wastes and consuming or absorbing the nutrients
Protein molecule that is made up of amino acids and that is needed to build and repair body structures and to regulate processes in the body
Carbohydrate class of energy giving nutrients that includes sugars, starches, and fiber; contains carbon, hydrogen, and oxygen
Lipid a type of biochemical that does not dissolve in water; fats and steroids are lipids
Phospholipid a lipid that contains phosphorous and that is a structural component in cell membranes
ATP Adenosine TriPhosphate, a molecule that acts as the main energy source for all cell processes
Nucleic Acid a molecule made up of subunits called nucleotides
What are the characteristics of living things? -Made up of cells -Sense and respond to change -Reproduce -Have DNA -Use Energy -Grow and develop
What is the difference between Asexual Reproduction and Sexual Reproduction? -Asexual Reproduction requires only one parent to produce offspring. The offspring is a copy of the one single parent. -Sexual Reproduction requires two parents to produce offspring. The offspring has traits from both parents.
What is Growth? What is Development? -Growth involves change in size -Development is a change in form
Where do organisms store energy? lipids
What is the molecule that contains the information about how to make proteins? DNA
What are the subunits of nucleic acids? nucleotides
Why do living things require air? Living things need air because they use gases in air in the chemical processes that release energy from food
What is ATP? ATP is a molecule that is the major energy carrying molecule that helps provide fuel for cellular activities
What can sunlight be? -a stimulus
What are living things made up of? cells
When do green organisms convert the energy in sunlight to energy stored in food? during photosynthesis
What are two things food gives organisms? food gives organisms energy and raw materials needed to carry out life processes
What are compounds that make up proteins? amino acids
What is an example of simple carbohydrate? table sugar
What are molecules that form much of the cell membrane called? phospholipid
Osmosis is important to cells because? cells are filled with fluids that are mostly water.
Cellular respiration is the process by which? cells use oxygen to produce energy from food.
One type of fermentation in muscle cells produces? lactic acid
A cell does not need to use energy during diffusion
Cellular respiration allows an organism to get energy from food
What do materials go in and out of an organism's cell though? cell membranes
Moving materials through a cell membrane by active transport requires the use of energy
Which type of cells contain more DNA? prokaryotic cells
The process of chromosome separation. mitosis
What limits most cells to a very small size? the surface area to volume ratio of the cell.
A structure that performs a specific function in the cells organelle
Created by: 972508