Biology Part 1 Flashcards
What is biology?
Biology is the study of living things.
What is a multicellular organism?
A multicellular organism is an organism made up of many cells
What does physiology mean?
Physiology means functioning.
Why are plants important to humans?
Plants produce oxygen which is essential to humans.
Besides oxygen, what do plants provide humans?
Plants provide food, medicine, wood
Even though plants can be 1cm to 100metres, what do they have in common?
Plants all have a similar structure of cells
Who discovered plant cells?
Robert Hooke in 1665
What did he name the little box like structures he saw in a cork sample?
He named the little boxes cells
Cells are the…
Cells are the basic unit of life.
What are the three main parts of cell theory?
Cell theory 1. all living things are made of cells, 2. cell is the basic unit of structure and function in living things, 3. a cell only comes into existence by the division of a cell.
What is a eukaryote?
A eukaryote is an organism made up of large and complex cells
What is a prokaryote?
A prokaryote is a small, simple cell
What is an example of a prokaryote?
Bacteria is an example of a prokaryote.
What are organelles?
Organelles are the structures that carry out the life function of a cell.
What is the cell wall?
The cell wall is the rigid outermost layer of a plant cell that makes it stiff. Animal cells do not have a cell wall.
What is the cell membrane?
A cell membrane is the protective layer around all cells. It is made up of lipids (fats) and proteins.
What is cytoplasm?
Cytoplasm is a thick, aqueous (water-based) solution in which organelles are found
What is dissolved in cytoplasm?
Cytoplasm has nutrients, salts, minerals and enzymes dissolved in it.