Biology STAAR Review

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose, using carbon dioxide and water, and releasing oxygen as a byproduct.

Front

What is cellular respiration?

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy (ATP), carbon dioxide, and water. It is the reverse of photosynthesis.

Front

How are photosynthesis and cellular respiration related?

Back

The products of photosynthesis (glucose and oxygen) are the reactants needed for cellular respiration, and vice versa.

Front

What is a mutation?

Back

A mutation is a change in the DNA sequence that can lead to changes in the structure and function of proteins.

Front

What is a deletion mutation?

Back

A deletion mutation occurs when one or more nucleotides are removed from the DNA sequence, potentially altering the function of the resulting protein.

Front

What is the main function of tRNA?

Back

The main function of transfer RNA (tRNA) is to bring amino acids from the cytoplasm to the ribosomes during protein synthesis.

Front

What are proteins?

Back

Proteins are large, complex molecules made up of amino acids that perform a variety of functions in the body, including catalyzing biochemical reactions, providing structure, and regulating processes.

Front

What are nucleic acids?

Back

Nucleic acids, such as DNA and RNA, are biomolecules that store and transmit genetic information.

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What are lipids?

Back

Lipids are a diverse group of hydrophobic molecules, including fats, oils, and steroids, that serve as energy storage, structural components of cell membranes, and signaling molecules.

Front

What are carbohydrates?

Back

Carbohydrates are organic compounds made of carbon, hydrogen, and oxygen, and they serve as a primary energy source for living organisms.