Unit 2 Flashcardizz

Front

Why does water move from the roots to the leaves of plants?

Back

Water moves from the roots to the leaves of plants primarily due to capillary action, which is the ability of water to flow in narrow spaces without the assistance of external forces.

Front

What is a biological molecule?

Back

A biological molecule is a large organic molecule found in any living organism, essential for life processes.

Front

The function of a protein depends on its:

Back

The function of a protein depends on its structure, specifically its three-dimensional shape, which determines how it interacts with other molecules.

Front

An acid has a pH:

Back

An acid has a pH lower than 7, indicating a higher concentration of hydrogen ions.

Front

What is an ion?

Back

An ion is an atom or group of atoms that has gained or lost one or more electrons, resulting in a positive or negative charge.

Front

What is capillary action?

Back

Capillary action is the ability of a liquid to flow in narrow spaces without external forces, crucial for water transport in plants.

Front

Define a protein.

Back

A protein is a large biological molecule made up of one or more chains of amino acids, essential for various functions in living organisms.

Front

What is the significance of pH in biology?

Back

pH is a measure of acidity or alkalinity, crucial for enzyme activity and overall cellular function.

Front

What are the building blocks of proteins?

Back

The building blocks of proteins are amino acids, which link together to form polypeptide chains.

Front

What is the role of enzymes in biological reactions?

Back

Enzymes act as catalysts in biological reactions, speeding up the process by lowering the activation energy required.