HORTICULTURE

HORTICULTURE SCIENCE

ULTRA STRUCTURE OF PLANT CELLS AND ORGANS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Cells can only be seen with the help of a ____
A
hand lens
B
magnifying glass
C
3D glasses
D
microscope
Explanation: 

Detailed explanation-1: -There is little in the contents of most cells (which are 70% water by weight) to impede the passage of light rays. Thus, most cells in their natural state, even if fixed and sectioned, are almost invisible in an ordinary light microscope. One way to make them visible is to stain them with dyes.

Detailed explanation-2: -With a few exceptions, individual cells cannot be seen with the naked eye, so scientists must instead use microscopes (micro-= “small”; -scope = “to look at”) to study them. A microscope is an instrument that magnifies objects otherwise too small to be seen, producing an image in which the object appears larger.

Detailed explanation-3: -A microscope is an instrument that is used to magnify small objects. Some microscopes can even be used to observe an object at the cellular level, allowing scientists to see the shape of a cell, its nucleus, mitochondria, and other organelles.

Detailed explanation-4: -Some cells are visible to the unaided eye The smallest objects that the unaided human eye can see are about 0.1 mm long. That means that under the right conditions, you might be able to see an amoeba proteus, a human egg, and a paramecium without using magnification.

Detailed explanation-5: -because cells are only show under microscope and we have to see anything under microscope we have to make a slide of that thing. I hope this answers helps you.

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