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Chapter 2 Sci. Vocab

Holt Life Science Textbook Chapter 2 Vocabulary

cell the smallest functional and structural unit of all living organisms
homeostasis the maintenance of a constant internal state in a changing environment
sexual reproduction two parents produce offspring that share characteristics of both parents
asexual reproduction a single parent produces offspring that are identical to the parent
metabolism the sum of all chemical processes that occur in an organism
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 a 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 a class of molecules that includes sugars, starches, and fiber
lipid a fat molecule or a molecule that has similar properties
phospholipid a lipid that contains phosphorus and that is a structural component in cell membranes
ATP adenosine triphosphate, a molecule that acts as the main energy source for cell processes
nucleic acid a molecule made up of subunits called nucleotides
Created by: kmaki