Chapter 2 and 3 Flashcards
What are axon?
Long fibres that extend from nerve cells and carry messages over long distances
What is bacteria?
Very simple unicellular organisms that lack a nucleus and other organelles
What is benign?
Benign describes a tumour that is not able to spread to their parts of the body
What is a binocular microscope?
A light microscope that has two ocular lenses
What is cancer?
Uncontrolled growth of Cells
What is cell culture?
When cells are grown separately from organisms in the laboratory
What does multicellular mean?
Consisting of many cells
What are palisade cells for?
Photosynthesis
What are ciliates cells for?
Stopping lung damage
Why are nerve cells so long?
D
Where are egg cells found?
In the ovaries
What is a palisade cell specialised to do?
Photosynthesis
Why does a root hair cell have a thin wall?
To make it easy for minerals to pass through
What are the hairs in a ciliates cell known as?
Cilia
What is a sperm cell designed to do?
Fertilise an egg cell
How are red blood cells different from other cells?
They have no nucleus
What is a cell membrane?
The ‘skin’ that holds the cell together; it controls what comes into and leaves the cell
What are Cells ?
The building blocks of all living things
What is cell theory?
The idea that all living things are made up of one or more cells that come from existing cells
What is a cell wall?
A rigid layer on the outside of a plant cell; provides the skeleton of a plant
What is chemotherapy?
The use of drugs to destroy cancer cells
What is chlorophyll?
The green chemical in chloroplasts that traps the suns energy for photosynthesis
What is a chloroplast?
An organelle within the cell where photosynthesis takes place