Question 1 :
Which of the following is/are used as blofertillsers?<br>1. Azolla<br>2. Blue-green algae<br>3. Alfalfa<br>

Question 2 :
........... involves in the intake of complex material prepared by other organisms.<br/>

Question 3 :
In some plants&#160;like Nerium, stomata is present in a cavity known as&#160;

Question 4 :
Organisms are able to capture free energy from small inorganic molecules through a process called chemosynthesis.&#160;These inorganic elements may include

Question 8 :
A leaf having undivided lamina with&#160;an axillary bud in its axil is called<br/>

Question 9 :
Leghaemoglobin (A red colored&#160;haemoprotein) having an affinity for oxygen is present in the roots of

Question 16 :
Plants which are unable to prepare their food wholly or partially are <br>

Question 20 :
An association of two species where both the partners derive mutual benefit from each other is known as<br/>

Question 21 :
Which branch of botany is concerned with the study of photosynthesis?<br/>

Question 23 :
A rootless aquatic in which a portion of leaf is modified to form a bladder for catching small aquatic animals is?

Question 28 :
Biofertilizers are organisms that enrich the nutrient quality of the soil. Which of the following can be used as biofertilisers ?

Question 30 :
The leaf in which the stomata remains confined to lower surface of the leaf is known as

Question 31 :
The process of taking in $CO_2$ by plants and releasing $O_2$ is component of

Question 33 :
Read the following statements and select the correct answer: -&#160;<br/>(i) Rhizobium leguminosarum is also known as Bacillus radicicola.<br/>(ii) Nitrifying bacteria (Nitrosomonas, etc) are chemoautotrophs.<br/>(iii) Enzyme nitrogenase fixes $N_2$ under aerobic conditions.<br/>(iv) Leghaemoglobin creates aerobic conditions for the enzyme nitrogenase.&#160;

Question 47 :
The palisade tissue occurs on the ............ surface of the leaf.

Question 49 :
Which of the following cells helps in the rolling of leaves in dry weather?