Looking into cells Flashcards
Cell Membrane
a thin, flexiable 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
Organelle
A tiny cell structure that carries out a specific function within the cell
Nuclear Envelope
The nucleus is surrounded by a membrane called the nuclear envelope. Materials pass in and out of the nucleus through pores in the nuclear envelope
nucleolus
It is a small, round structure in the nucleus. This is where ribosomes are made
ribosomes
A small grain-shaped organelle in the cytoplasm of a cell that produces 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
endoplasmic reticulum (ER)
an organelle that forms a maze of passageways in which proteins and other materials are carried from one part of a 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.
lysosome
A cell organelle which contains chemicals that break down large food particles into smaller ones and that can be used by the rest of the cell.
