Big Science Test Flashcards
Do you know the major contributions that each scientist made to the discovery of cells?
Robert Hooke
Created and claimed the term cell, compound microscope, observed corks
Anton van Leeuwenhoek
He began to look at little things through a microscope, found many unicellular organisms
Matthias Schleiden
All plants are made of cells
Theodor Schwann
All animals are made of cells and all living things are made of cells
Rudolf Virchow
All cells comes from cells
What are the three main points of the cell theory?
- All living things are composed of cells
- Cells are the basic units of structure and function in living things
- All cells are produced from other cells
How do you determine the magnification of a compound microscope?
You have to multiply the magnification on the objective lens by ten
What are the functions of the cell wall and cell membrane?
Cell Wall: a rigid layer of nonliving material that surrounds the cells of plants and other organisms
Cell Membrane: controls what substances come into and out of a cell
What are the parts and functions of the nucleus?
Nuclear Envelope
Chromatin
Nucleus
materials that pass in and out of the nucleus through pores
thin strands that contain genetic material (DNA)
Brian of the cell
What are the functions of the organelles inside the cell?
Vacuole
Storage area
Mitochondria
powerhouse” of the cell because they convert energy in food molecules to energy
Endoplasmic Reticulum:
carries proteins and other materials from one part of the cell to another
Ribosomes
produces proteins
Golgi Bodies
receives proteins from the er packages then and distributes them to the other parts of the cell
Lysosomes
breaks down certain materials from the cell
