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Ch 2 Characteristics

Ch2 Characteristics of Life

TermDefinition
Cell The smallest unit of life The smallest structure that can carry out the activities of life
Cell Membrane The structure that surrounds the cell and separates it form it’s environment
Stimulus Something that affects an organism
Homeostasis To maintain a constant internal state To maintain a balance
Sexual Reproduction When sex cells from two different parents unite to from an offspring
Asexual Reproduction Reproduction that does not need two sex cells The organism can split in two or bud off and create a new identical offspring
DNA – Deoxyribonucleic Acid The molecule inside all cells that carry the instructions for an organisms traits
Metabolism The sum of all the chemical activities of an organism
Producers Organisms that make their own food (Plants)
Consumers Organisms that eat other organisms for food and energy
Decomposers Organisms that breakdown the remains of dead organisms to consume the nutrients
Photosynthesis The process in which plants use the energy from the sun to make it’s own food and also give off oxygen
Proteins MEATS A molecule that is made of amino acids that is used to repair body tissues and muscles
Carbohydrates Sugars, breads, pasta, veggies Food molecules that give the body energy
Lipids Fats and oil
Phospholipids A lipid found in the cell membrane
Nucleic Acids The main molecule found in DNA
Created by: Bshiffman
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