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Questions and Answers
Which of the following components is exclusively found in plant cells?
Which of the following components is exclusively found in plant cells?
Who was the scientist that proposed the statement 'All cells come from pre-existing cells'?
Who was the scientist that proposed the statement 'All cells come from pre-existing cells'?
What is a key feature of complete metamorphosis in certain organisms?
What is a key feature of complete metamorphosis in certain organisms?
In which type of cell is a centriole NOT typically found?
In which type of cell is a centriole NOT typically found?
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Which of the following is true regarding vacuoles in plant and animal cells?
Which of the following is true regarding vacuoles in plant and animal cells?
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Study Notes
Cell Structure
- Plant Cell: Cell wall, vacuoles (storage), chloroplasts, and flagella (only in gametes).
- Animal Cell: No cell wall, small/no vacuoles, no chloroplasts, and flagella.
- Both: Mitochondria, Golgi body, endoplasmic reticulum (rough and smooth), nucleus, cytoplasm, ribosomes.
- Cell Wall: Barrier outside the cell membrane, found in plant and bacterial cells. Large in plant cells, small in animal cells.
- Vacuoles: Storage for water, food, and enzymes.
- Centrioles: Aids in cell division, made of microtubules.
- Mitochondria: Powerhouse of the cell.
Cell Theory
- Robert Hooke: Used a crude microscope to observe cork, coined the term "cells."
- Anton van Leeuwenhoek: Improved microscopes, observed living cells.
- Matthias Schleiden: Stated plant cells are made of cells.
- Theodor Schwann: First statement of cell theory ("All plants are made of cells").
- Rudolf Virchow: Second statement of cell theory ("All cells come from preexisting cells").
- Cell Theory: Developed in the mid-1800s; cells are the basic unit of life; all living things are composed of cells, and new cells come from existing cells.
Asexual/Sexual Reproduction
- Life Cycle: Fertilization, zygote, embryogenesis, embryo, organogenesis, young, maturation, adult, gametogenesis, gametes (repeat).
- Metamorphosis: A feature in some organisms involving rapid change from immature to adult stages (e.g., beetles, mosquitos, butterflies complete metamorphosis; aquatic juvenile stage, no pupa stage: dragonflies, grasshoppers).
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Description
Test your knowledge on the structure of plant and animal cells, as well as the foundational principles of cell theory established by scientists like Robert Hooke and Rudolf Virchow. This quiz covers key components such as mitochondria, vacuoles, and the significance of different cell theories. Challenge yourself to see how well you understand cellular biology!
