Cells, Tissues & Organs Flashcards
What is a ribosome?
Where proteins are made in the cell
What is a nucleus?
Contains the genetic material that controls the activities of the cell.
What is a cell membrane?
The cell membrane holds the cell together and controls what goes in and out.
What is mitochondria?
Most of the reactions for respiration takes place here. Respiration releases energy that the cell needs to work.
What is a cytoplasm?
The gel like substance where most of the chemical reactions happen. It contains enzymes that control these chemical reactions.
What three extra parts does a plant cell have?
Cell wall, permanent vacuole and chloroplasts.
Cell wall
Made of cellulose. It supports the cell and strengthens it
Permanent vaccuole
Contains cell sap, a weak solution of sugar and salts
Chloroplasts
This is where photosynthesis occurs, which makes food for the plant. They contain a green substance called chlorophyll.
Similar cells group together to make a…
tissue
Different tissues work together as an…
organ
What are palisade leaf cells adapted for?
Photosynthesis
What are palisade leaf cells packed with?
Chloroplasts for photosynthesis.
Why is it good that a palisade leaf cell is tall?
Their tall shape means that a lot of surface area is exposed down the side for absorbing CO2 from the air
Why is it good that a palisade leaf cell is thin?
They’re thin, so many chloroplasts can be packed in at the top of the leaf
