Cells and Their Structures

Nucleic acids are not a component of the cell membrane. The cell membrane is composed of phospholipids, proteins, and carbohydrates.

Mitochondria are responsible for producing energy in a cell through the process of cellular respiration.

The nucleus is the control center of the cell and is responsible for directing the cell's activities.

Budding is not a type of cell division. Mitosis, meiosis, and binary fission are all types of cell division.

The Golgi apparatus is responsible for packaging and distributing proteins in a cell.

Diffusion is not a type of transport across a cell membrane. Active transport, passive transport, and osmosis are all types of transport across a cell membrane.

Lysosomes are responsible for digesting cellular waste and foreign materials.

The cytoskeleton provides structural support to the cell and helps to maintain its shape.

Neurotransmitter signaling is not a type of cell signaling. Endocrine signaling, paracrine signaling, and autocrine signaling are all types of cell signaling.

Plasmodesmata are not a type of cell junction. Tight junctions, gap junctions, and desmosomes are all types of cell junctions.

Mitotic catastrophe is not a type of cell death. Apoptosis, necrosis, and autophagy are all types of cell death.

Cancer stem cells are not a type of stem cell. Embryonic stem cells, adult stem cells, and induced pluripotent stem cells are all types of stem cells.

M checkpoint is not a type of cell cycle checkpoint. G1 checkpoint, S checkpoint, and G2 checkpoint are all types of cell cycle checkpoints.

Dedifferentiation is not a type of cell differentiation. Terminal differentiation, transdifferentiation, and metaplasia are all types of cell differentiation.

Anoikis is not a type of cell migration. Chemotaxis, haptotaxis, and contact inhibition are all types of cell migration.