Cells and Size of things

Front

What is a big biological molecule?

Back

Big biological molecules, also known as macromolecules, include carbohydrates, proteins, lipids, and nucleic acids. They are essential for life and perform various functions in living organisms.

Front

Which molecule is NOT a big biological molecule?

Back

H2O (water) is not considered a big biological molecule; it is a small molecule.

Front

What is the function of the nuclear envelope?

Back

The nuclear envelope protects the nucleus and its DNA, regulating what enters and exits the nucleus.

Front

What protects and contains all DNA in the cell?

Back

The nucleus protects and contains all DNA in the cell.

Front

What is the smallest unit of matter?

Back

The smallest unit of matter is an atom.

Front

What is an organ?

Back

An organ is a group of tissues that work together to perform a specific function in an organism.

Front

What is the function of ribosomes?

Back

Ribosomes build proteins by translating messenger RNA (mRNA) into amino acid sequences.

Front

What is the role of vacuoles in a cell?

Back

Vacuoles store nutrients, waste products, and help maintain turgor pressure in plant cells.

Front

What is the difference between an organelle and an organ?

Back

An organelle is a specialized structure within a cell (like mitochondria), while an organ is a larger structure made up of tissues (like the heart).

Front

What is the function of mitochondria?

Back

Mitochondria are known as the powerhouse of the cell, generating ATP through cellular respiration.