17 Questions
What is the smallest unit of life?
Cells
What is the term for single cell organisms?
单细胞生物体
What is the name of the theory that states that all living organisms are composed of cells?
Cell theory
What is the term for cells that evolved from a common ancestor?
Modern cells
What is the implication of studying cell biology?
It is the same as studying life
What is the scale of life that can only be seen by light microscopy?
Plants and animals cell size: 10-100 µm
What happens to the surface area to volume ratio as the radius of a cell increases?
It decreases
Why are cells typically small in size?
To increase their surface area-to-volume ratio
Who is known as the 'father of microbiology'?
Antonie van Leeuwenhoek
What is the main function of the cell membrane?
To regulate the flow of solutes in and out of the cell
Why are cells often chemically treated and stained with dyes?
To observe internal structures
What is a characteristic of prokaryotic cells?
They do not have a nucleus
What is the resolution of Antonie van Leeuwenhoek's microscope?
0.2 µm
What is the term for the ability of cells to maintain a constant internal environment?
Homeostasis
What is the study of microscopic organisms?
Microbiology
What is the benefit of understanding the microbial world?
To benefit humankind and planet Earth
What is the composition of the cell membrane?
Phospholipid bilayer and embedded proteins
This quiz covers the basics of cells, the fundamental units of life. Learn about the structure and characteristics of single-celled organisms, prokaryotes, and eukaryotes. Discover how cells are the smallest units of life and the cell theory.
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