The basic unit of structure and function that makes up all organism

All the chemical reactions that occur within the cells of an organism

Ability of an organism to maintain a stable internal environment even when the external environment changes

process by which organisms produce new organisms of the same type

Nutrients are broken apart, releasing the chemical energy stored in them

Life process that involves combining simple substances into more complex substances

Term used to describe molecules that contain both hydrogen and carbon

Type of molecules that does not contain both carbon and hydrogen nut can contain any other combination of elements

A structure within the cell that carries out a specific function

A group of specialized cells that a specific function

Body structure made of different kinds of tissues combined to perform a specific function

Several organs that work together

Jellylike substance that is between the cell membrane and the nucleus contains specialized structures

Large structure within a cell that controls the cell's metabolism and stores genetic information

Storage sacs within the cytoplasm of a cell that may contain either wastes or useful materials

Tiny structures in the cell that are the sites of protein production

Organelles that contain enzymes used to extract energy from nutrients

proteins speed up the rate of chemical reactions in living things

Green organelles that contain chlorophyll where the photosynthesis takes place

The thin boundary between the cell and its environment

Movement of molecules from areas of high to low concentration

Process by which cells use energy to transport molecules through the cell membrane from areas of low concentration to high concentration

Break down large food molecules into simpler molecules

Any one of several building blocks of protein

The result of digested starches

Protein molecules in the cell membrane that can receive chemical messages from other cells

A chemical produced in the endocrine glands

Process by which the chemical bond energy stored in nutrients is released for use inc ells

Flow of materials within a cell as well as between parts of a multicellular organism

Removal of all wastes produced by the cells of the body

The body's ability to destroy pathogens before they cause disease

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Topic 1

Living environment

Term	Definition
Cell	The basic unit of structure and function that makes up all organism
Metabolism	All the chemical reactions that occur within the cells of an organism
Homeostasis	Ability of an organism to maintain a stable internal environment even when the external environment changes
Reproduction	process by which organisms produce new organisms of the same type
Cell respiration	Nutrients are broken apart, releasing the chemical energy stored in them
Synthesis	Life process that involves combining simple substances into more complex substances
Organic	Term used to describe molecules that contain both hydrogen and carbon
Inorganic	Type of molecules that does not contain both carbon and hydrogen nut can contain any other combination of elements
Organelle	A structure within the cell that carries out a specific function
Tissues	A group of specialized cells that a specific function
Organ	Body structure made of different kinds of tissues combined to perform a specific function
Organ system	Several organs that work together
Cytoplasm	Jellylike substance that is between the cell membrane and the nucleus contains specialized structures
Nucleus	Large structure within a cell that controls the cell's metabolism and stores genetic information
Vacuoles	Storage sacs within the cytoplasm of a cell that may contain either wastes or useful materials
Ribosomes	Tiny structures in the cell that are the sites of protein production
Mitochondria	Organelles that contain enzymes used to extract energy from nutrients
Enzymes	proteins speed up the rate of chemical reactions in living things
Chloroplasts	Green organelles that contain chlorophyll where the photosynthesis takes place
Cell membrane	The thin boundary between the cell and its environment
Diffusion	Movement of molecules from areas of high to low concentration
Active transport	Process by which cells use energy to transport molecules through the cell membrane from areas of low concentration to high concentration
Digestion	Break down large food molecules into simpler molecules
Amino acids	Any one of several building blocks of protein
Simple sugars	The result of digested starches
Receptor molecules	Protein molecules in the cell membrane that can receive chemical messages from other cells
Hormones	A chemical produced in the endocrine glands
Respiration	Process by which the chemical bond energy stored in nutrients is released for use inc ells
Circulation	Flow of materials within a cell as well as between parts of a multicellular organism
Excretion	Removal of all wastes produced by the cells of the body
Immunity	The body's ability to destroy pathogens before they cause disease

Created by: user-1977505

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