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cooney_ch 2

characteristics of living things and necessities of life

QuestionAnswer
what is a producer? an organism that can make its own food by using energy from its surroundings
what is a consumer? an organism that eats other organisms or organic matter
what is a decomposer? an organism that gets energy by breaking down the remains of dead organisms or absorbing the nutrients
what is a protein? a molecule that is made up of amino acids and that is needed to repair body structures and to regulat processes in the body
what is a carbohydrate? a class of energy giving nutrients that includes sugars, starches, and fiber; contains carbon hydrogen and oxygen
what is a lipid? a type of biochemical that does not dissolve in water
what is a phospholipid? a lipid that contains phosphorus and that is a structural component in cell membrane
what is ATP? a molecule that acts as a main energy source for cell processes
what is nucleic acid? a molecule made up of subunits called nucleotides
what is stimulus? qanything that causes a reaction or change in an organism or any part of an organism
what is homeostasis? the maitenance of a constant internal state in a changing environment
what is sexual reproduction? reproduction in which the sex cells from two parents unite, producing offspring that share traits from both parents
what is asexual reproduction? reproduction that does not involve the union of sex cells and in which one parent produces offspring identical to itself
what is heredity? the passing of genetic traits from parent to offspring
what is metabolism? the sum of all chemical processes that occur in an organism
All living things are made up of what? cells
The ability to sense change in an environment and respond to that change is called... stimulus
What is the maitenance of a constant internal statein a changing environment called? homeostasis
Through what kind of reproduction do palar bears use? sexual reproduction
Through what kind of reproduction do most single celled organisms reproduce? aseexual reproduction
What do you call the passing of genetic traits from parent to offspring? heredity
What is the sum of all chemical processes called? metabolism
What are the four basic needs of an organism? water, air, food, shelter
What are cells? the smallest unit that can perform all life processes
Cells are made up of what percent water? 70
An organism that can make its own food by using energy from its surroundings is called a... producer
What do you call an oraganism that eats other organisms or organic matter? consumer
What do you call an organism that gets energy by breaking down the remains of dead organisms or animal wastes and consumes or absorbs the nurients? decomposer
Proteins are molecules made up of smaller molecules called... amino acids
Potatoes are what type of a carbohydrate? complex carbohydrate
Created by: 12_bcooney