Cell Transport Mechanisms and Cell Structure: Biology Flashcards

What is simple diffusion?

Movement of molecules from high to low concentration directly through the membrane.

What is facilitated diffusion?

Movement from high to low concentration through a membrane protein.

What is active transport?

Movement from low to high concentration using energy and transport proteins.

What energy does active transport use?

ATP.

What is osmosis?

Diffusion of water across a selectively permeable membrane.

What is an isotonic solution?

A solution with the same solute concentration as the cell.

What happens in an isotonic solution?

Water moves both ways with no net movement.

What are prokaryotic cells?

Cells without a nucleus or membrane-bound organelles.

What are eukaryotic cells?

Cells with a nucleus and membrane-bound organelles.

6 aspects of wellness wheel

Physical: having self control in maintaining a healthy lifestyle.

Occupational: finding the fulfillment and meaning of your job.

Social: how we connect with others and get along.

Spiritual: value the meaning and purpose of life

Intellectual: being open to learn new things.

Emotional: being in touch with your feelinh and emotion

Endocytosis

the general process where the cell membrane surrounds something outside the cell and brings it inside in a vesicle.

Phagocytosis

The cell takes in large solid particles, such as food particles or other large materials.

Phago = eating

Pinocytosis

The cell takes in extracellular fluid and the dissolved substances in it.

Pino = drinking

Exocytosis

A vesicle moves to the cell membrane, fuses with it, and releases its contents outside the cell.

EXO = EXIT → OUT of the cell

Feedback loop

Stimulus → Receptor → control center

→ effector → response