Looking Inside Cells Flashcards
Cell membrane
A thin, flexible barrier that surrounds a cell and controls which substances pass into and out of a cell.
Cell wall
A rigid supporting layer that surrounds the cells of plants and some other organisms.
Nucleus
In cells, a large oval organelle that contains the cell’s genetic material in the form of DNA and controls many of the cell’s activities.
Organelles
A tiny cell structure that carries out a specific function within the cell.
Nuclear envelope
A nucleus is surrounded by a membrane called a nuclear envelope
Nucleolus
Th is made of ribosomes
Ribosomes
Small grain shaped organelles that produce proteins
Cytoplasm
Fills the region between the cell membrane and the nucleus
Mitochondria
Rod-shaped organelles that convert energy in food molecules to energy the cell can use to carry out its functions.
Endoplamic reticulum
An organelle that forms a maze of passageways in which proteins and other materials are carried from one part of the cell to another.
Golgi apparatus
An organelle in a cell that receives proteins and other newly formed materials from the endoplasmic reticulum, packages them, and distributes them to other parts of the cell.
Vacuole
A sac-like organelle that stores water, food, and other materials.
Chloroplast
An organelle in the cells of plants and some other organisms that captures energy from sunlight and changes it to an energy form that cells can use in making food.
Lysosomes
The saclike organelles
