Q501
Open questionThe source of oxygen generated during photosynthesis is
Select an option to see the answer and solution.
Biology GK · all questionsPlant Anatomy and Physiology
Plant Anatomy and Physiology
practice.
Practice every MCQ with options. Use Show answers when you want the correct option and solution.
999
Questions
26/50
Page
Pick an option on a question to see the right answer and solution.
Q502
Open questionThe average air pressure at sea level is known as the
Select an option to see the answer and solution.
Q503
Open questionIn tomato plants, we can observe a purple colouring of the leaf petioles and veins caused by anthocyanin formation. This is due to the deficiency of
Select an option to see the answer and solution.
Q504
Open questionThe reactions of glycolysis occur in the
Select an option to see the answer and solution.
Q505
Open questionMovement whose direction is determined by the morphology of the plant is known as
Select an option to see the answer and solution.
Q506
Open questionDuring the development of embryo in dicotyledonous plants, the peripheral cells of the proembryo subsequently divide by anticlinal walls, thus differentiating a single layered
Select an option to see the answer and solution.
Q507
Open questionEffect of photoperiod on growth and development of plants especially on flowering is called
Select an option to see the answer and solution.
Q508
Open questionWhat is the shape of the two guard cells which enclose stomata ?
Select an option to see the answer and solution.
Q509
Open questionWhich of the following benthic life zones includes any life in the deep trenches below 5,000 m?
Select an option to see the answer and solution.
Q510
Open questionThe first case of severe air pollution in modern times was
Select an option to see the answer and solution.
Q511
Open questionAccording to which of the following models, photosynthetic reaction centre and its associated light harvesting pigment molecules of one pigment system form one photosynthetic unit?
Select an option to see the answer and solution.
Q512
Open questionLeaf abscission is accomplished through the formation of which of the following cells, usually at the base of the petiole?
Select an option to see the answer and solution.
Q513
Open questionMatch List-I with List-II and select the correct answer:
| List-I | List-II |
| a. Strictly long-day plant | 1. Trifolium repens |
| b. Strictly short-day plant | 2. Hyoscyamus niger |
| c. Short-long-day plant | 3. Pharbitis nil |
| d. Long-short-day plant | 4. Bryophyllum crenatum |
Select an option to see the answer and solution.
Q514
Open questionConsider the following statements and choose the correct answer:
1. C4 plants have "Kranz" type of leaf anatomy
2. The vascular bundles in C3 leaves are surrounded by a layer of bundle sheath cells that contain large number of chloroplast
3. The chloroplast in C4 leaves are dimorphic
4. In C4 plants the cells of bundle sheath perform C4 cycle
1. C4 plants have "Kranz" type of leaf anatomy
2. The vascular bundles in C3 leaves are surrounded by a layer of bundle sheath cells that contain large number of chloroplast
3. The chloroplast in C4 leaves are dimorphic
4. In C4 plants the cells of bundle sheath perform C4 cycle
Select an option to see the answer and solution.
Q515
Open questionA high biological oxygen demand (BOD) indicates
Select an option to see the answer and solution.
Q516
Open questionThe light energy absorbed by photosynthetic systems could lead to the esterification of inorganic phosphate into ATP, was first demonstrated by
Select an option to see the answer and solution.
Q517
Open questionIn the inverted ovule, the funicle continues beyond the hilum alongside the body of the ovule forming a ridge called
Select an option to see the answer and solution.
Q518
Open questionConsider the following statements regarding the egg (Oosphere) and choose the correct answer:
1. The oosphere contains a female generative cell
2. The upper part of the oosphere membrane is made of cellulose
3. As the maturation of the oosphere nucleus increases its stainability also increases
4. In the cytoplasm of the oosphere, apart from the nucleus certain plastids are also found which manufacture starch found in it
1. The oosphere contains a female generative cell
2. The upper part of the oosphere membrane is made of cellulose
3. As the maturation of the oosphere nucleus increases its stainability also increases
4. In the cytoplasm of the oosphere, apart from the nucleus certain plastids are also found which manufacture starch found in it
Select an option to see the answer and solution.
Q519
Open questionAccording to chemiosmotic hypothesis, single molecule of ATP is formed from ADP and Pi (inorganic phosphate) when
Select an option to see the answer and solution.
Q520
Open questionIn which of the following dicots, the nucellus present outside the embryo sac (perisperm) is largely eaten as food?
Select an option to see the answer and solution.