Introduction to Biology Vocabulary

A nucleic acid molecule made up of two long strands of nucleotides in the shape of a double helix that contains deoxyribose sugar and that stores genetic information.

• protein

• enzyme

• deoxyribonucleic acid (DNA)

• Ribonucleic acid (RNA)

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simple cells that do not have a nucleus; found in bacteria

• eukaryotic cell

• prokaryotic cell

• algae

• eukaryote

A process used by plants; converts light energy, carbon dioxide, and water into glucose (sugar) and oxygen.

• cell theory

• cellular respiration

• photosynthesis

• Krebs cycle

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A group of cells that work together to perform a function.

• organ

• tissue

• organism

• organ system

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A section of DNA that determines a specific trait, such as eye color.

• dominant

• allele

• recessive

• gene

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An organism that consists of only one cell, such as an amoeba

• unicelluar

• organ

• eukaryote

• multicelluar

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An organism that consists of more than one cell.

• unicelluar

• organ

• organelle

• multicelluar

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A stable internal environment of a living organism

• stimuli

• cell

• antibody

• homeostasis

Chemical reactions that convert food into energy. It is one of the requirements of life.

• cells

• metabolism

• organelle

• Humoral Response

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A change in the environment. Responding to ___ is one of the requirements of life.

• Antigen

• Virus

• Stimuli

• Immune Response

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