Final Exam Review Flashcardziz

Front

What is a quantitative observation?

Back

A quantitative observation is a measurement that involves numbers and can be quantified, such as the mass of a rock sample.

Front

What is a qualitative observation?

Back

A qualitative observation describes characteristics or qualities that cannot be measured with numbers, such as the color and feel of a rock.

Front

What are monosaccharides?

Back

Monosaccharides are the simplest form of carbohydrates and serve as the monomers for more complex carbohydrates.

Front

What is a compound?

Back

A compound is a substance formed when two or more elements are chemically bonded together, such as carbon dioxide (CO2).

Front

What are hydrogen bonds?

Back

Hydrogen bonds are attractions between the negative oxygen atom of one water molecule and the positive hydrogen atom of another water molecule.

Front

True or False: An enzyme is not used up in a reaction and can be reused with a new substrate.

Back

True.

Front

What is the difference between qualitative and quantitative observations?

Back

Qualitative observations describe qualities (e.g., color, texture), while quantitative observations involve measurements (e.g., mass, volume).

Front

What are the four main types of macromolecules?

Back

The four main types of macromolecules are carbohydrates, lipids, proteins, and nucleic acids.

Front

What is the role of enzymes in biological reactions?

Back

Enzymes act as catalysts that speed up chemical reactions without being consumed in the process.

Front

What is a monomer?

Back

A monomer is a small, basic molecular unit that can join together to form larger molecules called polymers.