Question

Which of the following is used to visualize live cells? *
1 point
SEM
TEM
Phase contrast microscope
all above​

Answer 1

Answer:

Live cell imaging is the study of living cells using time-lapse microscopy. It is used by scientists . One of the first time-lapse microcinematographic films of cells ever made was . Quantitative phase contrast microscopy has an advantage over fluorescent . But these scattered frequencies are converted into a hologram

Explanation:

Answer 2

Let me write the question correctly for you.

Question:

Which of the following is used to visualize the live cells?

1. SEM
2. TEM
3. Phase-contrast microscope
4. All above​

Answer:

The phase-contrast microscope is used to visualize live cells. The correct option is 3.

Explanation:

• The phase-contrast microscope is used to study the living and unstained cells. When the light passes through a living cell, the phase of the light wave is changed according to the cell's refractive index.
• The most commonly used type of electron microscope is the transmission electron microscope (TEM) because it forms an image from electrons that are transmitted through the specimen.
• A scanning electron microscope (SEM) is fundamentally different from TEM because it produces an image from electrons deflected from a specimen's outer surface.

So, the phase-contrast microscope is used to visualize the live cells. But it is not possible to visualize the live cells in TEM and SEM.