The only substance that commonly exists on Earth in solid, liquid and gas form at the same time.

Endoplasmic Reticulum, Golgi body and cell membrane are all made of this molecule.

Process that removes carbon from the atmosphere and moves it into the biosphere.

Desert whiptail lizards create offspring in this manner, creating clones of themselves.

The longest part of the cell cycle, where DNA replication occurs.

RNA and proteins that can lower the activation energy of chemical reactions.

Desmosomes, tight junctions and gap junctions all connect these.

Has both aerobic and anaerobic components to this metabolic process.

Binds to a receptor which activates transcription factors.

This type of receptor adds phosphates to proteins changing the activity of the enzyme.

Chemical reaction that combines monomers into a polymer releasing water.

Movement of water from a hypotonic area to a hypertonic area.

The only shared process of the both respiration and photosynthesis creating ATP.

This checkpoint makes sure that metaphase has moved chromosomes appropriately.

Sister chromatids separate and are pulled to opposite poles.

Steroids have a backbone of this macromolecule.

Diffusion, facilitated diffusion and osmosis.

The advantage of cristae in mitochondria and thylakoids in chloroplasts.

New cell wall material forms to separate two new plant cells.

The sugar molecule in RNA.

The bond that forms between a 5' phosphate of one nucleotide and the 3' hydroxyl of the next nucleotide.

Prevents the normal ligand from binding to a receptor site.

Addition of hydrogens, and electrons, to a molecule.

Proteins that activate or inactivate target proteins that regulate the cell cycle.

The nitrogen-containing part of a nucleotide.