Plant Growth and Development
71 questions · Biology · NEETGuest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
Plant Growth and Development
71 questions · Biology · NEET
- Read the following statements on plant growth and development. (A) Parthenocarpy can be induced by auxins. (B) Plant growth regulators can be involved in promotion as well as inhibition of growth. (C) Dedifferentiation is a pre-requisite…2025 · Q25 · MCQ
- Which one of the following phytohormones promotes nutrient mobilization which helps in the delay of leaf senescence in plants?2025 · Q80 · MCQ
- Auxin is used by gardeners to prepare weed-free lawns. But no damage is caused to grass as auxin2024 · Q15 · MCQ
- Formation of interfascicular cambium from fully developed parenchyma cells is an example for2024 · Q25 · MCQ
- Spraying sugarcane crop with which of the following plant growth regulators, increases the length of stem, thus, increasing the yield?2024 · Q50 · MCQ
- Match List-I with List-II : Choose the correct answer from the options given below: Includes table2024 · Q21 · MCQ
- F. Skoog observed that callus proliferated from the internodal segments of tobacco stem when auxin was supplied with one of the following except :2024 · Q32 · MCQ
- Given below are some statements about plant growth regulators. A. All GAs are acidic in nature. B. Auxins are antagonists to GAs. C. Zeatin was isolated from coconut milk. D. Ethylene induces flowering in Mango. E. Abscisic acid induces…2024 · Q33 · MCQ
- The phenomenon which is influenced by auxin and also played a major role in its discovery :2023 · Q14 · MCQ
- Match List - I with List - II. Choose the correct answer from the options given below : Includes table2023 · Q27 · MCQ
- Which of the following statements is not correct ?2023 · Q42 · MCQ
- Spraying of which of the following phytohormone on juvenile conifers helps hastening the maturity period, that leads early seed production?2023 · Q12 · MCQ
- Which hormone promotes internode/petiole elongation in deep water rice?2023 · Q23 · MCQ
- The ability of plants to follow different pathways in response to environment leading to formation of different kinds of structures is called2022 · Q11 · MCQ
- Which of the following growth regulators is an adenine derivative?2022 · Q14 · MCQ
- Which one of the following plants does not show plasticity?2022 · Q14 · MCQ
- The gaseous plant growth regulator is used in plants to:2022 · Q18 · MCQ
- Production of Cucumber has increased manifold in recent years. Application of which of the following phytohormones has resulted in this increased yield as the hormone is known to produce female flowers in the plants:2022 · Q27 · MCQ
- Plants follow different pathways in response to environment of phases of life to form different kinds of structures. This ability is called2021 · Q12 · MCQ
- The site of perception of light in plants during photoperiodism is2021 · Q13 · MCQ
- The plant hormone used to destroy weeds in a field2021 · Q26 · MCQ
- Which of the following is not an inhibitory substance governing seed dormancy?2020 · Q26 · MCQ
- Name the plant growth regulator which upon spraying on sugarcane crop, increases the length of stem, thus increasing the yield of sugarcane crop2020 · Q27 · MCQ
- What is the site of perception of photoperiod necessary for induction of flowering in plants?2019 · Q65 · MCQ
- Fruit and leaf drop at early stages can be prevented by the application of2017 · Q3 · MCQ
- The Avena curvature is used for bioassay of2016 · Q6 · MCQ
- You are given a tissue with its potential for differentiation in an artificial culture. Which of the following pairs of hormones would you add to the medium to secure shoots as well as roots?2016 · Q3 · MCQ
- Phytochrome is a2016 · Q4 · MCQ
- Auxin can be bioassayed by2015 · Q4 · MCQ
- What causes a green plant exposed to the light, on only one side, to bend towards the source of light as it grows?2015 · Q2 · MCQ
- Typical growth curve in plants is2015 · Q3 · MCQ
- Dr. F. went noted that if coleoptile tips were removed and placed on agar for one hour, the agar would produce a bending when placed on one side of freshly-cut coleoptile stumps. Of what significance is this experiment?2014 · Q6 · MCQ
- Which one of the following growth regulators is known as 'stress hormone'?2014 · Q7 · MCQ
- A few normal seedlings of tomato were kept in a dark room. After a few days they were found to have become white -coloured like albinos. Which of the following terms will you use to describe them?2014 · Q8 · MCQ
- The pineapple which under natural condition is difficult to blossom has been made to produce fruits throughout the year by application of2013 · Q2 · MCQ
- During seed germination its stored food is mobilized by2013 · Q2 · MCQ
- Vernalization simulates flowering in2012 · Q1 · MCQ
- Which one of the following generally acts as an antagonist to gibberellins?2012 · Q14 · MCQ
- Through their effects on plant growth regulators, what do the temperature and light control in the plants?2012 · Q15 · MCQ
- Root development is promoted by2010 · Q11 · MCQ
- One of the commonly used plant growth hormone in tea plantations is2010 · Q12 · MCQ
- Photoperiodism was first characterised in2010 · Q12 · MCQ
- Coiling of garden pea tendrils around any support is an example of2010 · Q2 · MCQ
- Phototropic curvature is the result of uneven distribution of2010 · Q45 · MCQ
- One of the synthetic auxin is2009 · Q2 · Multiple correct
- Which one of the following acids is a derivative of carotenoids?2009 · Q3 · MCQ
- Importance of day length in flowering of plants was first shown in2008 · Q7 · MCQ
- Senescence as an active developmental cellular process in growth and functioning of a flowering plant, is indicated in2008 · Q8 · MCQ
- Opening of floral buds into flowers, is a type of2007 · Q1 · MCQ
- Which one of the following pairs, is not correctly matched?2007 · Q10 · MCQ
- The wavelength of light absorbed by Pr form of phytochrome is2007 · Q8 · MCQ
- An enzyme that can stimulate germination of barley seeds is2006 · Q4 · MCQ
- Farmers in a particular region were concerned that pre-mature yellowing of leaves of a pulse crop might cause decrease in the yield. Which treatment could be most beneficial to obtain maximum seed yield?2006 · Q5 · MCQ
- How does pruning help in making the hedge dense?2006 · Q6 · MCQ
- Treatment of seeds at low temperature under moist conditions to break its dormancy is called2006 · Q7 · MCQ
- The ability of the Venus Flytrap to capture insects is due to2005 · Q5 · MCQ
- Cell elongation in internodal regions of the green plants takes place due to2004 · Q6 · MCQ
- One set of the plant was grown at 12 hours day and 12 hours night period cycles and it flowered while in the other set night phase was interrupted by flash of light and it did not produce flower. Under which one of the following categories…2004 · Q7 · MCQ
- Plants deficient of element zinc, show its effect on the biosynthesis of plant growth hormone2003 · Q1 · MCQ
- Differentiation of shoot is controlled by2003 · Q12 · MCQ
- Nicotiana sylvestris flowers only during long days and N.tabacum flowers only during short days. If raised in the laboratory under different photoperiods, they can be induced to flower at the same time and can be cross-fertilized to…2003 · Q13 · MCQ
- Coconut milk factor is2003 · Q63 · MCQ
- Dwarfness can be controlled by treating the plant with2002 · Q6 · MCQ
- Seed dormancy is due to the2002 · Q7 · MCQ
- Which plant is LDP?2001 · Q5 · MCQ
- Which of the following prevents the fall of fruits?2001 · Q6 · MCQ
- Hormone responsible for senescence is2001 · Q7 · MCQ
- Which hormone breaks dormancy of potato tuber?2001 · Q8 · MCQ
- If the apical bud has been removed then we observe2000 · Q5 · MCQ
- By which action a seed coat becomes permeable to water2000 · Q6 · MCQ
- Which hormone is responsible for fruit ripening?2000 · Q7 · MCQ