EASY
Earn 100

Name the cells that are discovered by Robert Hooke.

Important Questions on Living Things

EASY
Science>Biology>Living Things>Comparing Plant and Animal Cells
What purpose is served by the coverslip?
EASY
Science>Biology>Living Things>Comparing Plant and Animal Cells
Differentiate between temporary and permanent slides.
MEDIUM
Science>Biology>Living Things>Comparing Plant and Animal Cells
Can we prepare slides without using stains? If not, why?
EASY
Science>Biology>Living Things>Comparing Plant and Animal Cells
What precaution should be taken while placing a coverslip over the study material?
EASY
Science>Biology>Living Things>Comparing Plant and Animal Cells
Differentiate between dry and wet mounts.
MEDIUM
Science>Biology>Living Things>Comparing Plant and Animal Cells
Draw a ray diagram to illustrate the action of a convergent lens as reading glasses or a magnifying glass.
MEDIUM
Science>Biology>Living Things>Comparing Plant and Animal Cells
Which one of the following statements is true for a microscope?
EASY
Science>Biology>Living Things>Comparing Plant and Animal Cells
Why could cells not be observed and studied for thousands of years?
MEDIUM
Science>Biology>Living Things>Comparing Plant and Animal Cells
A microscope is used to _____.
EASY
Science>Biology>Living Things>Comparing Plant and Animal Cells

Write the quadrants in which the following points lie:

-4,7

EASY
Science>Biology>Living Things>Comparing Plant and Animal Cells
At times we add glycerine to water while mounting the material on a slide. Why?
HARD
Science>Biology>Living Things>Comparing Plant and Animal Cells
Describe stepwise how you would make a slide of an onion peel and observe it under a microscope.
MEDIUM
Science>Biology>Living Things>Comparing Plant and Animal Cells
A microscope is a useful optical device, as everyone agrees. It has a_____. (magnifier/concave lens)
MEDIUM
Science>Biology>Living Things>Comparing Plant and Animal Cells
Why do we stain the 'study material'?
HARD
Science>Biology>Living Things>Comparing Plant and Animal Cells
What is mounting of slides? What are the two types of mounts prepared?
EASY
Science>Biology>Living Things>Comparing Plant and Animal Cells
A thin section of a specimen is taken for viewing it through a microscope because
MEDIUM
Science>Biology>Living Things>Comparing Plant and Animal Cells
Why are plant and animal specimens usually stained with dyes before observing them through a microscope? Name one stain (or dye) used for this purpose.
HARD
Science>Biology>Living Things>Comparing Plant and Animal Cells
What is a specimen? How does a coverslip help in making a slide? Write the basic steps for using a microscope.
EASY
Science>Biology>Living Things>Comparing Plant and Animal Cells
A concave lens is used as a magnifying glass.
EASY
Science>Biology>Living Things>Comparing Plant and Animal Cells

Match the name of the scientist given under column 'A' with the organism or the product was given under column.

  Column 'A'      Column 'B'
1. Leeuwenhoek   (a)  phagocytes
2. Elic Metchnikoff   (b)  microscope
3. Louis Pasteur (c)  penicillin
4. Alexander Fleming  (d) antiseptic
5. Edward Jenner (e) pasteurisation