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cell review 2
inside the cell
18
Science
6th Grade
04/01/2012

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Term
What is a cell membrane?
Definition
It is the protective covering that encloses the cell and allows materials to enter and leave the cell.
Term
what is a cytoplasm?
Definition
It is a gelatin-like material inside a cell where the work of the cell is carried out.
Term
what is a eukaryotic cell?
Definition
It is a cell that has a nucleus where the genetic material is contained.
Term
what are examples of eukaryotic cells?
Definition
Some examples are plants, animals and protists
Term
what is a prokaryotic cell?
Definition
It is a cell that has no nucleus, its genetic material is within the cytoplasm. Bacteria is an example.
Term
What best describes an organelle?
Definition
It is any part of a cell that is enclosed by membrane, each one performs a specific function, and some examples are the nucleus and mitochondria. A non example is the cytoplasm.
Term
What best describes chloroplast?
Definition
Organelles that use the energy from sunlight to make sugar.
Term
What best describes mitochondria?
Definition
Organelles that release stored energy. It uses oxygen to get energy from processing food.
Term
What best describes endoplasmic reticulum?
Definition
A twisted membrane with portions that break off to form vesicles that transport materials.
Term
What best describes a cell wall?
Definition
A tough outer covering that lies right outside the cell membrane.
Term
What best describes ribosomes?
Definition
they are vesicles that use information from the nucleus to make and transport proteins. These tiny structures are found in the cytoplasm and endoplasmic reticulum.
Term
What best describes the Golgi apparatus and its function?
Definition
They are folded membranes that look like a stack of pancakes. they take materials manufactured by the endoplasmic reticulum and finishes processing them.
Term
What best describes the central vacuole in a plant cell and its function?
Definition
It stores water, waste and other materials.
Term
What best describes the lysosomes in an animal cell and its function?
Definition
They are vesicles that contain chemicals that breakdown materials taken into the cell, as old cell parts.
Term
cell membrane
Definition
The protective covering that encloses the entire cell. It allows certain materials to enter and leave the cell.
Term
rough endoplasmic reticulum
Definition
It contains ribosomes.
Term
smooth endoplasmic reticulum
Definition
It does not contain ribosomes.
Term
Nucleus
Definition
It is the control center of the cell that contains genetic information that gives instructions to the cell on how to grow/reproduce.
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