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Cells and tissues
Class 9 · Biology · 6 questions
Name: ____________________ Date: ____________
Who first observed cells in a thin slice of cork?
- A Schwann
- B Leeuwenhoek
- C Schleiden
- D Robert Hooke
The powerhouse of the cell is the:
- A Mitochondrion
- B Golgi body
- C Ribosome
- D Nucleus
Which organelle is found in plant cells but not in animal cells?
- A Mitochondria
- B Ribosome
- C Nucleus
- D Chloroplast
Protein synthesis takes place on the:
- A Lysosomes
- B Centrioles
- C Vacuoles
- D Ribosomes
The cell wall of plants is mainly made of:
- A Protein
- B Cellulose
- C Chitin
- D Starch
A group of similar cells that perform the same function is a:
- A System
- B Tissue
- C Organ
- D Organelle
Answer key
1. D, 2. A, 3. D, 4. D, 5. B, 6. B
Robert Hooke saw the cell walls of cork in 1665 and named them cells.
Mitochondria release energy from food in the form of ATP.
Chloroplasts carry out photosynthesis and are found in plant cells.
Ribosomes build proteins from amino acids.
Cellulose forms the plant cell wall.
Such a group of cells is called a tissue.