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Life Science Chapter 2 Vocabulary
Vocabulary Words
16
Science
7th Grade
08/27/2013

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Cards

Term

 

 

Cell

Definition

 

 

The smallest unit that can carry out all activities of life

 

Term

 

 

Stimulus

Definition

 

 

Anything that causes a reaction or change in an organism or any part of an organism.

Term

 

 

Homeostasis

Definition

 

 

The maintenence of a constant internal state in a changing enviroment

Term

 

 

Sexual Reproduction

Definition

 

 

reproduction in which the sex cells from two parents unite, producing off spring that share traits from both parents

Term

 

 

Asexual Reproduction

Definition
reproduction that does not involve the union of sex cells and in which one parent produces offspring identical to itself
Term

 

 

Heredity

Definition

 

 

the passing of genetic traits from parent to offspring

Term

 

 

Metabolism

Definition

 

 

the sum of all chemical processes that occur in an organism

Term

 

 

Producers

Definition

 

 

A producer that can make its own food by using energy from its surroundings

Term

 

 

Consumers

Definition

 

An organism that eats other organisms or oganic matter

 

U are a consumer

Term

 

 

Decomposers

Definition

 

 

An organism that gets energy by breaking down the remains of dead organisms or animal wastes and consuming or absorbing the nutrients

Term

 

 

Protiens

Definition

 

 

A molecule that is made up of amino acids and that is needed to build and repair body structures and regulate processes in the body.

Term

 

 

Nucleic Acids

Definition
A molecule made up of subunits called nucleotides
Term

 

 

Lipids

Definition

 

 

A fat molecule or a molecule that has similar properties

Term

 

 

Phospholipids

Definition

 

 

A lipid that contains phosphorus and that is a structural component in cell membrane

Term

 

 

Carbohydrates

Definition

 

 

A class of molcules that include sugars,starches, and fiber. Contains Carbon, hydrogen, and oxygen

Term
ATP
Definition
A molecule that acts as the main energy source for cell processes.
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