How can we help?

You can also find more resources in our Help Center.

24 terms

Cells-Science chapter 2, Lesson 1-Cells

STUDY
PLAY
cell
the smallest part of your body that carries out activities of life.
cells make up
all living things
cellular respiration
the taking in of
oxygen and food, such as sugar, in order to get energy
cell membrane
surrounds a cell, holding the parts of the cell together. It allows needed materials, such as sugar, water, and oxygen, to enter the cell. It allows certain other materials, such as carbon dioxide and other waste products, to exit.
nucleus
the part of the cell that contains chromosomes-which controls how the body grows
chromosomes
carry the instructions for the cell to do its jobs.
DNA
is a chemical shaped like a twisted ladder
cell wall
surrounds the cell membrane-only in plant cells. It is very stiff and provides extra support and protection.
heredity
the process of passing genes from one generation to the next.
chloroplast
give green color to plants and use energy in sunlight to turn water and carbon dioxide into oxygen and sugar.
mitochondria
energy producer.
cell membrane
holds contents of cell together and controls what passes into and out of the cell (like our skin)
cytoplasm
all the material of the cell between the cell membrane and the nucleus. It holds smaller parts in the cell.
vacuoles
provides storage and breaks down material. In plant cells they may store water.
cell wall
like the brick walls of a factory-it helps support the plant cell, just like walls of a factory keep the building standing up.
cell membrane
allows certain things to go in and out of the cell. It is like a screen door in a factory; it allows some things to go in and out, but not others.
cytoplasm
the liquid in the cell that all the other organelles float around in. It is like the factory floor, it provides a surface that everything can stand on.
mitochondria
produce energy for the cell to use. They are like the power supply for the factory; they are the powerhouse of the cell.
nucleus
controls what the cell does and contains the DNA. It is like the control room of the factory; it tells everything else what to do.
chloroplast
only found in plant cells and helps the plant make its own food. It is also like a power supply; it provides the cell with the materials to make the food. Think of it as the cafeteria
vacuoles
can sometimes act like a stomach, storing and breaking down material. In plants vacuoles may store water. Think of it as a vaporizer.
tissue
a group of the same kind of cells working together doing the same job
organ
a group of different tissues combined together into one structure to perform a main job in the body.
organ system
a group of organs that work together to carry out a life process.