MDCAT Biology MCQs

Microtubules form tracks for motor proteins.
They also form the mitotic spindle, cilia, and flagella.

The plasma membrane surrounds material and pinches inward.
Phagocytosis and pinocytosis are forms of endocytosis.

The nucleus stores chromosomes in eukaryotic cells.
It also regulates gene expression and cell activities.

The Golgi receives materials from the ER.
It modifies and directs them to their destinations.

All organisms are made of one or more cells.
Cells perform the fundamental processes required for life.

The nucleus stores chromosomes in eukaryotic cells.
It also regulates gene expression and cell activities.

The Golgi receives materials from the ER.
It modifies and directs them to their destinations.

All organisms are made of one or more cells.
Cells perform the fundamental processes required for life.

The nucleus stores chromosomes in eukaryotic cells.
It also regulates gene expression and cell activities.

Lysosomes break down macromolecules and damaged cell parts.
Their enzymes work best in an acidic environment.

All organisms are made of one or more cells.
Cells perform the fundamental processes required for life.

The nucleolus is a dense region inside the nucleus.
It produces rRNA and assembles ribosomal subunits.