Biology- part 1 🧬 Flashcards
What is the cell theory?
- The cell is the basic unit in which the processes of living things take place
- All living things are made of cells and of substances produced by cells
- All cells come from other pre-existing cells
What is the cell theory
- The cell is the basic unit in which the processes of living things take place
- All living things are made of cells and substances produced by cells
- All cells come from other pre-existing cells
What are unicellular and multicellular organisms?
Unicellular organisms consist of one cell (e.g., bacteria), while multicellular organisms have many specialized cells (e.g., humans).
How do most cells reproduce?
Most cells reproduce by dividing. When dividing each new cell gets a copy of chromosomes and DNA.
Why are cells classified as living things?
All cells are classified as living things- they take in nutrients, eliminate waste products, and grow and reproduce. And in time all cells die.
Name the 12 parts of a cell.
- Cell membrane
- Nucleus
- Vacuole
- Cytoplasm
- Mitochondria
- Ribosomes
- Lysosomes
- Cell wall
- Chloroplast
- Centriole
- Endoplasmic reticulum
- Golgi apparatus
What is the cell membrane and its function?
A cell membrane is a thin flexible semi-permeable cell organelle that regulates the transport of materials entering and exiting the cell. As well as maintaining the cell’s shape.
What is the nucleus and its function?
