Page 4 - ตัวอย่าง Science Solution 1

1.2 Basic Units of Organisms

1.2.1 Discovery about the Basic Units
of Organisms

Organisms that can be seen are varied in
sizes. If studied in details, these organisms can be Figure 1.3 Robert Hooke, a British
observed to consist of small units that are basic units or scientist who discovered and applied
smallest units of organisms that come in all types and the word “cell”
sizes. These units were found about 300 years earlier
by a British scientist named Robert Hooke.

Inventing Hooke’s Microscope

Robert Hooke invented an essential
instrument. It was a compound glass-sphere
microscope (with more than 1 piece of lenses) which
function as an instrument to observe tiny specimens. Figure 1.4 The microscope invented
The microscope invented by Robert Hooke is shown by Robert Hooke
in Figure 1.4.

Vertical view
Robert Hooke used his invented
microscope to observe a thin slice of cork and Horizontal
view
found many room-like shapes without depths in it.
Hooke supposed that these small rooms he had
discovered were similar to sorted small boxes in a form
of a beehive as shown in Figure 1.5.

Figure 1.5 An Illustration of small rooms drawn
by Robert Hooke from what he had observed

What did Robert Hooke discover and what were they like?
What are some of the benefits from Robert Hooke’s discovery in our time?
Do unicellular organisms live in the same manner as multicellular ones?

Unit 1 Units of Organisms and Plants Life 11