Plants: Physiology
31 questions
Which of the following elements is present in chlorophyll-
The process by which plants synthesize their food is called:
Which one of the following gases is essential for photosynthesis process?
Oxygen, which is liberated during photosynthesis, comes from :
Most of the oxygen on Earth is produced by :
Which light is most effective in photosynthesis?
Artificial light can –
Which of the following has the maximum efficiency to convert solar energy into chemical energy ?
Which one of the following does not increase the amount of carbon dioxide in carbon cycle on earth ?
Which of the living tissues acts as the carrier of organic nutrients in higher plants ?
The ‘xylem’ in plants is responsible for transporting :
Which of the following elements is NOT a micronutrient in plants?
Plants accept nitrogen in which form?
Which of the following nutrient is most useful for enhancing oil content in mustard crop?
Which of the following nutrient is necessary for 'Nodule Formation' in legumes?
Consider the following statements: Assertion (A): Cuscuta (Amarbel) is an example of parasitic angiosperm. Reason (R): It gets its nutrition from the leaves of the host plant. Choose your answer from the code given below:
Crop logging is a method of -
Which one of the following is a plant hormone?
Which one of the following is not a plant hormone?
Match List-I with List-II and select the correct answer from the code given below the lists. | List-I (Plant hormone) | List-II (Function) | | --- | --- | | A. Auxin | 1. Cell elongation | | B. Gibberellin | 2. Cell division | | C. Cytokinin | 3. Growth inhibition | | D. Abscisic acid | 4. Apical dominance | <!-- PAGE 751 --> 752 Code : | A | B | C | D | | --- | --- | --- | --- | |
Left
Right
The hormone related to drought tolerance is -
Consider the following statements : 1. Weeping jelly is due to an excess of acid. 2. Biofertilizer most suited to sugarcane are rhizobium. 3. Plants grown in salt water are called thallophytes. 4. Dormancy breaking hormone is cytokinin. Which of these statements are correct?
The gas used in the artificial ripening of green fruit is :
Match List - I with List - II and select the correct answer using the codes given below the Lists : List - I List - II A. Artificial fruits ripening 1. Carbon dioxide B. Baking Soda 2. Sodium silicate C. Soft Drink 3. Ethylene D. Quartz 4. Sodium bicarbonate Code : | | A | B | C | D | | --- | --- | --- | --- | --- | |
Left
Right
The practice of gootee in plants is used for the purpose of :
Seed that is changed every year is known as -
With reference to crop rotation, which of the following statement is/are correct? 1. Deep rooted crops should be followed by the same type of crop. 2. Legume must be followed by a non-legume. Select the correct answer using the codes given below : Code :
Censer mechanism of dispersal of seeds is found in :
Clonal selection can be used in -
Which of the following is not correctly matched?
What is hydroponics?