Cell Vocabulary Flashcards
(42 cards)
Cell theory
- All living things are composed of cells.
- Cells are the basic units of structure and function in living things.
- All cells are produced from other cells.
Cells
the basic membrane-bound unit that contains the fundamental molecules of
life and of which all living things are composed
organelle
a tiny cell structure that carries out a specific function within the cell
tissue
A group of similarcellsthat perform a specific function
organ
a body structure that is composed of different kinds of tissues that work
together
organ system
a group of organs that work together to perform a certain function
in an organism’s body
unicellular
made of a single cell
multicellular
having or made of many cells
prokaryotes
a unicellular organism that lacks a nucleus and some other cell
structures
eukaryotes
an organism whose cells contain a nucleus
ANIMAL CELL VOCAB.
ANIMAL CELL VOCAB.
shape
most plant cells are squarish or rectangular in shape
cell membrane
the thin, flexible barrier that surrounds the cell and controls which substances
pass into and out of a cell
cell wall
rigid supporting layer that surrounds the cells of plants and some other organisms.
chlorophyll
a green photosynthetic pigment found in the chloroplasts of plants, algae, and
some bacteria.
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:
photosynthesis
cytoplasm
thick fluid region of a cell located inside the cell membrane (in prokaryotes) or
between the cell membrane and nucleus (in eukaryotes)
endoplasmic 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 body
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
lysosme
cell organelle which contains chemicals that breaks down large food particles into
smaller ones and that can be used by the rest of the cell (cleans and recycles)
mitochondria
rod-shaped organelles that convert energy in food molecules to energy the cell
can use to carry out its functions (powerhouse)
nuclear membrane
the thin flexible barrier that surrounds the nucleus and controls which
substances pass into and out of the nucleus
nucleus
a large oval organelle that contains the cell’s genetic material in the form of DNA
and controls many of the cell’s activities (the brain)
ribosome
small grain-shaped organelles in the cytoplasm of a cell that produces proteins