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Function
Structure
Animal Cell
Cell communication
Cell Metabolism
100
The control center, or brain of the cell.
What is the Nucleus?
100

This structure has a double membrane and is perforated by pores lined by a pore complex.

What is the Nuclear Envelope?

100
Digestive organelle where macromolecules are hydrolyzed.
What is the Lysosome?
100

These are attachments between cells that seal off the border between the cells and prevent molecules from passing through the border.

What are tight junctions?

100

These are two of the ways that enzyme activity can be changed.

What are temperature, pH, and catalysis (any two of the three)?

200
Involved in the production of ribosomes in the nucleus.
What is the Nucleolus?
200

This structure is composed of ribosomal RNA and protein

What is a ribosome?

200

Structures that contain nine sets of triplet microtubules arranged in a ring

What are centrioles?

200
The channels through the cell wall that connect the cytoplasm of one cell to that of another.
What is the plasmodesmata?
200

It is the name for a reaction that requires energy to be added in order for the reaction to occur.

What is endergonic?

300
Active in membrane synthesis and other synthetic and metabolic processes
What is the Endoplasmic Reticulum.
300

It is a mass of densely stained granules and fibers adjoining part of the chromatin.

What is the nucleolus?

300
Long tail-like structure which allows the cell to move with greater ease.
What is the Flagellum?
300

These cell attachments actually form channels between cells that allow the exchange of small molecules, substrates, and metabolites between cells.

What are gap junctions?

300

It is the name for the regulation of an enzyme by molecules (such as the reaction product) that interact with the enzyme to slow it down or speed it up.

What is feedback?

400
Organelle active in synthesis, modification, sorting and secretion of cell products.
What is Golgi Apparatus?
400
A membranous sac of hydrolytic enzymes.
What is the Lysosome?
400
Organelle where cellular respiration occurs and most ATP is generated.
What is the mitochondria?
400

They are signaling molecules formed from a cholesterol base, which travel through the bloodstream and dock with cell-surface receptors to cause actions in target cells.

What are steroid hormones?

400

Molecules such as FADH and NADH act as enzyme cofactors by doing this thing.

What is carry and transfer electrons?

500
Maintains the shape of the nucleus by mechanically supporting the nuclear envelope.
What is Nuclear Lamina?
500
Netlike array of protein filaments. Includes a framework of a nuclear matrix (a framework of fibers extending throughout the nuclear interior)
What is Nuclear Lamina?
500

Projections that increase the cell's surface area.

What are microvilli?

500
A solution called cell sap surrounded by a membrane known as the tonoplast.
What is the structure of the central vacuole?
500

It is an atom or molecule that binds to an enzyme away from the active site in order to enhance or speed up a chemical reaction.

What is an allosteric activator?