Flashcards
2.2 Building blocks of life
Flashcards do conjunto (17)
- 12.2 Building blocks of lifeCreated by Rahma Salih Abelgadir
- 2Who created the first microscope?The first microscope created was by Zacharias Janssen (1585-1632) who was a Dutch reading glasses maker.
- 3What did Robert Hooke see though that microscope?Robert Hooke saw thin slices of cork containing little boxes. He had discovered the basic building blocks of life.
- 4What did Leeuwenhoek first observe and describe?He was the first person to observe and describe microscopic living things. Also he was first person to observe and describe human red blood cells and bacteria.
- 5What the three cell theories?The three cell theories are 1)Plant cells were not empty boxes, 2)Cells are the basic building blocks of life, 3)Animals are made of cells.
- 6Who discovered the first cell theory?A Scottish biologist named Robert Brown (1773-1858).
- 7Who discovered the second cell theory?A German scientist named Matthias Schleiden (1804-1881)
- 8Who discovered the third cell theory?A friend of Schleiden named Theodor Schwann (1810-1882)
- 9What are unicellular organisms?Unicellular organisms are living things that have only one cell e.g. bacteria.
- 10What are organelles?Organelles are tiny organs found in a cell.
- 11Give a unicellular fungi.Yeast is one unicellular fungi.
- 12Define mitosis?Mitosis is a cell division that produces two identical cells.
- 13Define cell membraneCell membrane is the 'skin' that hold a single cell together and it controls what comes in and out the cell.
- 14Define cellCells are the basic foundation of life or building blocks of life.
- 15What is a fungal cell?A fungal cell is organisms which can be single celled or multiple cells.
- 16Which protists are harmful to living organisms.Giardia Lamblia
- 17Identify 4Mitochondria
