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Q 1/42
Score 0
Who was the first person to use the term "cell" in a biological context?
30
Rudolf Virchow
Anton van Leeuwenhoek
Matthias Schleiden
Robert Hooke
Q 2/42
Score 0
What did Anton van Leeuwenhoek observe in pond water and his own mouth?
30
Tiny living organisms
Tiny empty chambers
Large protein molecules
Nonliving plant material
42 questions
Q.
Who was the first person to use the term "cell" in a biological context?
1
30 sec
Q.
What did Anton van Leeuwenhoek observe in pond water and his own mouth?
2
30 sec
Q.
Which scientist concluded that all plants are made of cells?
3
30 sec
Q.
Which concept states that new cells are produced from existing cells?
4
30 sec
Q.
According to the text, what is the fundamental principle of how microscopes work?
5
30 sec
Q.
In a compound light microscope, what is the function of the objective lens?
6
30 sec
Q.
What is a primary limitation of light microscopes mentioned in the text?
7
30 sec
Q.
Why are chemical stains or dyes used with light microscopes?
8
30 sec
Q.
Which type of microscope uses beams of electrons instead of light?
9
30 sec
Q.
What is a major disadvantage of using electron microscopes?
10
30 sec
Q.
Which microscope produces stunning three-dimensional images of a specimen's surface?
11
30 sec
Q.
What is the source of color in electron micrographs?
12
30 sec
Q.
All cells are surrounded by a thin, flexible barrier called the...
13
30 sec
Q.
What is the defining characteristic that separates eukaryotes from prokaryotes?
14
30 sec
Q.
Which of the following is given as an example of a prokaryote?
15
30 sec
Q.
What did Robert Hooke observe that led him to name the structures "cells"?
16
30 sec
Q.
The discoveries of Schleiden, Schwann, and Virchow are summarized in what fundamental concept of biology?
17
30 sec
Q.
What technology uses dyes that give off light to label specific molecules within a cell?
18
30 sec
Q.
Which type of microscope would likely be used to explore internal cell structures and large protein molecules by passing electrons through a very thin slice of the specimen?
19
30 sec
Q.
According to the text, what two features are common to ALL cells at some point in their lives?
20
30 sec
Q.
A nucleus is a large, membrane-enclosed structure that contains...
21
30 sec
Q.
Eukaryotes are organisms whose cells...
22
30 sec
Q.
Which of the following is NOT an example of a eukaryote?
23
30 sec
Q.
What is the smallest living unit of any organism?
24
30 sec
Q.
The invention of what instrument made the discovery of the cell possible?
25
30 sec
Q.
What did German botanist Matthias Schleiden conclude in 1838?
26
30 sec
Q.
What is a photo of an object seen through a microscope called?
27
30 sec
Q.
According to Figure 8-4, which of the following can be seen with the unaided human eye?
28
30 sec
Q.
In a prokaryotic cell, where is the genetic material located?
29
30 sec
Q.
What does the text say about the cells of multicellular organisms?
30
30 sec
Q.
What is the another name for the cell membrane mentioned in the text?
31
30 sec
Q.
What property of light waves causes them to be scattered as they pass through matter, limiting microscope resolution?
32
30 sec
Q.
Why must samples be placed in a vacuum for electron microscopy?
33
30 sec
Q.
Who stated that all animals are made of cells?
34
30 sec
Q.
According to the text, what is a typical size range for cells?
35
30 sec
Q.
The molecule that carries biological information in all cells is...
36
30 sec
Q.
Which organisms released oxygen into the atmosphere, making plant and animal life possible?
37
30 sec
Q.
The second lens in a light microscope, which magnifies the image further, is called the...
38
30 sec
Q.
To study a structure on the surface of a cell, which microscope would be the most suitable choice?
39
30 sec
Q.
How do prokaryotic cells compare to eukaryotic cells in general?
40
30 sec
Q.
The term "transmission" in transmission electron microscopy implies that...
41
30 sec
Q.
What is one of the three main points of the cell theory listed in the text?
