Cells and Classification Flashcards
Living things grow and develop, living things reproduce, living things respond to the environment living things use energy living things are made of cells
Characteristics of living things
Observed small chambers, which he called cells in a piece of cork
Robert Hooke
Schwann and Schleiden
Cell theory
Credited with inventing the first microscope
Jansen
Used microscope to study tiny creatures he called animalcules
Leeuwenhoek
His method of classification- Animalae and Plantae
The external boundary for the material inside the cell
Cell membrane
Jelly like substance inside the cell membrane
Cytoplasm
Tiny structures inside the cytoplasm of most cells which help carry out the functions of the cells
Organelles
Circular structure that contains DNA
Nucleus
Breaks down the cell’s food and releases energy- the power plant
Mitochondria
Little bundles of DNA inside the nucleus
Chromosomes
Passageways that allows material to move around the cell
Endoplasmic reticulum
Provide support and protection for the plant cell
Cell wall
Structures that contain chlorophyll, creating energy from sunlight
Chloroplasts
Chromosomes duplicate once and the cell divides once; produces two new identical daughter cells to the parent cell
Mitosis
The chromosomes duplicate once, and original cell divides twice, this process produces for reproductive cells
Meiosis
