Who is known as the father of cells?
Robert Hooke.
What did Felix Dujardin discover?
He discovered that the cell is made up of a living substance called protoplasm.
Who discovered the nucleus in plant cells?
Robert Brown.
What did Matthias Schleiden state about plant tissues?
All plant tissues are composed of cells, and the cell is the basic unit of all plants and animals.
What contribution did Theodor Schwann make to cell theory?
He discovered that the bodies of animals are composed of cells.
What was Rudolf Virchow's key conclusion about cells?
All cells arise from previously existing cells.
What does the cell theory state about all living organisms?
All living organisms are composed of one or more cells.
According to the cell theory, how do new cells form?
All cells arise from pre-existing, living cells by biogenesis.
What is passed down from a parent cell to offspring cells?
Information present in the nucleic acids (DNA/RNA).
What is Chlamydomonas and how does it move?
A unicellular, plant-like protist that moves using its flagellum.
What is a unique feature of Amoeba's feeding process?
It captures food using pseudopodia ("false feet").
What is Paramecium’s shape, and how does it move?
It is slipper-shaped and moves using cilia.
What makes Euglena unique among protists?
It has both plant and animal characteristics, with star-shaped chloroplasts for photosynthesis.
What is a colony in the context of cellular organization?
A group of similar cells joined together that cannot be differentiated from each other.
Give an example of a colonial organism.
Volvox.
How are the cells in Spirogyra arranged?
They are joined end-to-end to form unbranched filaments.
What are the two types of nuclei found in Paramecium?
Micronucleus and macronucleus.
What is the function of contractile vacuoles in unicellular organisms?
To expel excess water from the cell.
What is a filament in cellular organization?
Similar or identical cells joined end-to-end, as in Spirogyra.
How are cells organized in multicellular organisms?
Groups of similar cells form tissues, which make up organs, and these organs form systems.
1 / 20