Chapter 2 It’s Alive or Is It?

A membrane-covered structure that contains all of the materials necessary for life Click for Term

Cell A membrane-covered structure that contains all of the materials necessary for life Click for Term

Anything that affects the activity of an organism, organ or tissue Click for Term

Stimulus Anything that affects the activity of an organism, organ or tissue Click for Term

The maintenance of a stable internal environment Click for Term

Homeostasis The maintenance of a stable internal environment Click for Term

Reproduction in which a single parent produces offspring that are genetically identical to the parent Click for Term

Asexual reproduction Reproduction in which a single parent produces offspring that are genetically identical to the parent Click for Term

Reproduction in which two parents are required to produce offspring that will share characteristics of both parents Click for Term

Sexual reproduction Reproduction in which two parents are required to produce offspring that will share characteristics of both parents Click for Term

Hereditary material that controls all of the activities of a cell, contains the information to make new cells, and provides instructions for making proteins Click for Term

DNA (deoxyribonucleic acid) Hereditary material that controls all of the activities of a cell, contains the information to make new cells, and provides instructions for making proteins Click for Term

The passing of traits from parent to offspring Click for Term

Heredity The passing of traits from parent to offspring Click for Term

The combined chemical processes that occur in a cell or living organism Click for Term

Metabolism The combined chemical processes that occur in a cell or living organism Click for Term

An organism that uses sunlight directly to make sugar Click for Term

Producer An organism that uses sunlight directly to make sugar Click for Term

An organism that eats producers or other organisms for energy Click for Term

Consumer An organism that eats producers or other organisms for energy Click for Term

An organism that gets energy by breaking down the remains of dead organisms and consuming or absorbing the nutrients Click for Term

Decomposer An organism that gets energy by breaking down the remains of dead organisms and consuming or absorbing the nutrients Click for Term

An organism that gets energy by eating dead things, like a vulture Click for Term

Scavenger An organism that gets energy by eating dead things, like a vulture Click for Term

An organism that feeds on another living creature, usually without killing it Click for Term

Parasite An organism that feeds on another living creature, usually without killing it Click for Term

A biochemical that is composed of amino acids; its functions include regulating chemical reactions, transporting and storing materials, and providing support Click for Term

Protein A biochemical that is composed of amino acids; its functions include regulating chemical reactions, transporting and storing materials, and providing support Click for Term

A biochemical composed of one or more simple sugars bonded together that is used as a source of energy and to store energy Click for Term

Carbohydrate A biochemical composed of one or more simple sugars bonded together that is used as a source of energy and to store energy Click for Term

A type of biochemical that does not dissolve in water; including fats and oils, they store energy and make up cell membranes Click for Term

Lipid A type of biochemical that does not dissolve in water; including fats and oils, they store energy and make up cell membranes Click for Term

A molecule that forms much of the cell membrane Click for Term

Phospholipid A molecule that forms much of the cell membrane Click for Term

A biochemical that stores information needed to build proteins and other nucleic acids; made up of subunits called nucleotides Click for Term

Nucleic acid A biochemical that stores information needed to build proteins and other nucleic acids; made up of subunits called nucleotides Click for Term

The molecule that provides energy for a cell’s activities Click for Term

ATP (adenosine triphosphate) The molecule that provides energy for a cell’s activities Click for Term