Science Biology MCQ-258

General Science-Botany Questions for MPPSC,SSC,UPPSC,CDS,NDA,UPPSC Exams



Binomial system of naming the plants was introduced by

 
 
 
 

Which of the following statements in regard to respiration and photosynthesis in plants is correct?

 
 
 
 

What role does chlorophyll perform in the process of photosynthesis?

 
 
 
 

Who, among the following scientists, is associated with the hybridisation of garden pea?

 
 
 
 

In water hyacinth, the swollen petiole helps it in

 
 
 
 

The one which does not belong to underground stem vegetable is

 
 
 
 

The plant used as a diuretic and in treating jaundice is

 
 
 
 

Plants are killed in winter by frost

 
 
 
 

Deforestation has an alarming effect on

 
 
 
 

The stem of water plants usually have

 
 
 
 

Artificial light can

 
 
 
 

The food in onion is stored in the form of

 
 
 
 

Bacterial action changes dead leaves into

 
 
 
 

Most of the red, blue and purple colours of plants are due to a pigment called

 
 
 
 

When a cross is made between offspring and its parent, it is known as

 
 
 
 

For which of the following is calcium necessary for the proper growth of plants?

 
 
 
 

The first step in photosynthesis is the

 
 
 
 

Usually when tomatoes are plucked they are green. They become red later because the

 
 
 
 

All of the following are constituents of chlorophyll molecules, except

 
 
 
 

Which one of the following chemicals is best suited for weed control?

 
 
 
 

Climbing plants are sometimes referred to by the general term

 
 
 
 

Which one of the following is a ”man-made” cereal not found in nature?

 
 
 
 

Edible part of tomato is

 
 
 
 

The oily coat on the surface of leaves of water-lily helps them in

 
 
 
 

Which one of the following chemicals is directly responsible for the shedding of a leaf, flower or fruit from a plant?