Cell Organelles Flashcards
What are the cells three main jobs
Make energy
Make protein
Make more cells
What are cells
the smallest structural and functional unit of an organism.
What is a cell membrane
The semipermeable membrane surrounding the cytoplasm of a cell. Also called cytomembrane.
What are the cell membranes three main jobs
Separates cell from outside
Controls what enters or leaves cell
Recognizes signals from other cells
Structure
Phospholipid bilayer
Receptor molecules
Are examples of proteins
What are lysosomes
An organelle in the cytoplasm of eukaryotic cells containing enzymes enclosed in a membrane.
What are the three functions of a lysosomes
Digest food
Clean up and recycle
Cellular wastes
What is a cytoplasm
Jelly like material holding organelles in place
What is the function of the cytoplasm
offers support to the cell
What is a vacuole
a space or vesicle within the cytoplasm of a cell.
What are the functions of a vacuole
Transport inside cells
Storage
How do plants survive the winter with no leaves and no ability to make food
Plants store, food water and wastes in vacuoles.
Why are proteins important
5 types
Structural proteins( muscle fibers, hair, skin and claws)
Enzymes( speeds up chemical reactions like digestion)
Hormones
Antibodies and receptor molecules.
What is a neucleus
Controls the cells activities.
What are the functions of the nucleus
Houses and protects DNA
DNA are instructions to building proteins
Organelles are involved in making
Proteins Ribosomes Nucleus Golgi apparatus Endoplasmic reticulum ( ER)
Ribosomes
Where proteins are made
Functions of ribosome
Reads instructions from DNA to build proteins.
Endoplasmic reticulum (ER)
Works on proteins
Function of ER
Helps complete the proteins after ribosome builds them.
Golgi apparatus
Finishes, sorts, labels and ships proteins.
What you need to know
- Receptor molecules come in a huge variety of shapes.
- the unique shape of receptor molecules allows them to attach to molecules that have a matching shape.
