★ Must-know
Further detail
The eyepiece is where the scientist looks to observe the specimen.
The objective lens magnifies the specimen through three lenses.
The specimen is placed on the stage for magnification.
Robert Hooke used a microscope to look at a thin slice of cork.
Robert Hooke called the tiny room-like structures he saw in cork cells.
All organisms are made up of cells.
★ Must-know
📌 Red blood cells, nerve cells, sperm cells, and egg cells are animal cells, whereas root hair cells and leaf cells are plant cells.
Further detail
1. A microscope image of a specimen appears blurred. What should the observer do to make it clearer?
2. A student is setting up a microscope to magnify a leaf sample. Where should the student place the sample?
3. What did Robert Hooke use to examine a thin slice of cork?
What does turning a microscope’s focus knob do to a blurred specimen?
It makes the specimen look clearer.
Which scientist used a microscope to examine a thin slice of cork?
Robert Hooke.
Which scientist named the tiny room-like structures seen in cork cells?
Robert Hooke.
What are all organisms made up of?
Cells.
Which cell types are animal cells according to the section?
Red blood cells, nerve cells, sperm cells, and egg cells.
Which cell types are plant cells according to the section?
Root hair cells and leaf cells.
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