Secondary growth is absent in monocotyledonous plants. Justify.

Secondary growth is absent in monocotyledonous plants. Justify.
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Secondary growth is absent in monocotyledonous plants. Justify.
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The transverse section of a plant shows following anatomical features : (i) Large number of scattered vascular bundles surrounded by bundle sheath (ii) Large conspicuous parenchymatous ground tissue (iii)vascular bundles conjoint and closed (iv) phloem parenchyma absent Identify the category of plant and its part. (a) Monocotyledonous stem (b) Monocotyledonous root (c) Dicotyledonous stem (d) Dicotyledonous root

Description : The transverse section of a plant shows following anatomical features : (i) Large number of scattered vascular bundles surrounded by bundle sheath (ii) Large conspicuous parenchymatous ground ... (a) Monocotyledonous stem (b) Monocotyledonous root (c) Dicotyledonous stem (d) Dicotyledonous root

Last Answer : (a) Monocotyledonous stem

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After 48 hours of a cataract extraction operation, a patient complained of ocular pain and visual loss. On examination, this eye looked red with ciliary injection, corneal oedema and absent red reflex. The first suspicion must be: a. Secondary glaucoma. b. Anterior uveitis. c. Bacterial endophthalmitis. d. Acute conjunctivitis

Description : After 48 hours of a cataract extraction operation, a patient complained of ocular pain and visual loss. On examination, this eye looked red with ciliary injection, corneal oedema and absent red ... a. Secondary glaucoma. b. Anterior uveitis. c. Bacterial endophthalmitis. d. Acute conjunctivitis  

Last Answer : ANSWER: C

“Secondary of current transformer should not be open”. Justify.

Description : “Secondary of current transformer should not be open”. Justify.

Last Answer : Secondary of a CT should not be Open Circuited: If secondary of CT is open circuited ,then current through secondary becomes zero hence the ampere-turns produced by secondary which generally opposes primary ... opeartor point of view as well. So secondary of a CT should not be open circuited. 

$ Secondary growth occurs in those plants which have closed vascular bundles. ! Cork is produced by intrafascicular cambium.

Description : $ Secondary growth occurs in those plants which have closed vascular bundles. ! Cork is produced by intrafascicular cambium.

Last Answer : $ Secondary growth occurs in those plants which have closed vascular bundles. ! Cork is produced by ... D. If both As and R are wrong.

Phytohormones are (a) chemical regulating flowering (b) chemical regulating secondary growth (c) hormones regulating growth from seed to adulthood (d) regulators synthesised by plants and influencing physiological processes.

Description : Phytohormones are (a) chemical regulating flowering (b) chemical regulating secondary growth (c) hormones regulating growth from seed to adulthood (d) regulators synthesised by plants and influencing physiological processes.

Last Answer : (d) regulators synthesised by plants and influencing physiological processes.

CAM helps the plants in (a) conserving water (b) secondary growth (c) disease resistance (d) reproduction.

Description : CAM helps the plants in (a) conserving water (b) secondary growth (c) disease resistance (d) reproduction.

Last Answer : (a) conserving water

Secondary metabolites such as nicotine, strychnine and caffeine are produced by plants for their (a) nutritive value (b) growth response (c) defence action (d) effect on reproduction

Description : Secondary metabolites such as nicotine, strychnine and caffeine are produced by plants for their (a) nutritive value (b) growth response (c) defence action (d) effect on reproduction

Last Answer : (c) defence action

For a critical study of secondary growth in plants, which one of the following pairs is suitable? (a) Teak and pine (b) Deodar and fern (c) Wheat and maiden hair fern (d) Sugarcane and sunflower

Description : For a critical study of secondary growth in plants, which one of the following pairs is suitable? (a) Teak and pine (b) Deodar and fern (c) Wheat and maiden hair fern (d) Sugarcane and sunflower

Last Answer : (a) Teak and pine

Plants having little or no secondary growth are (a) grasses (b) deciduous angiosperms (c) conifers (d) cycads

Description : Plants having little or no secondary growth are (a) grasses (b) deciduous angiosperms (c) conifers (d) cycads

Last Answer : (a) grasses

Which tissues are responsible for the secondary growth of plants?

Description : Which tissues are responsible for the secondary growth of plants?

Last Answer : Vascular Cambium and Cork Cambium (also called secondary meristems) are responsible for the secondary growth. They increase the thickness (size of the girth) of the plant body.

Plants having little or no secondary growth are (1) Grasses (2) Deciduous angiosperms (3) Conifers (4) Cycads

Description : Plants having little or no secondary growth are (1) Grasses (2) Deciduous angiosperms (3) Conifers (4) Cycads

Last Answer : (1) Grasses

Justify the remedial measures for the following defects in earthen road: i) Formation of dust during dry weather ii) Growth of vegetation inside drains and their silting up

Description : Justify the remedial measures for the following defects in earthen road: i) Formation of dust during dry weather ii) Growth of vegetation inside drains and their silting up

Last Answer : i) Formation of dust during dry weather: The dust nuisance may be remedied by the following methods: Frequent sprinkling of water Treatment with calcium chloride Use of other dust palliatives Use of ... the drain. Silting up of weeds, plants, bushes etc. causes obstruction in the flow of water.

In `C_(4)`-Plants, Calvin cycle enzymes are absent in

Description : In `C_(4)`-Plants, Calvin cycle enzymes are absent in

Last Answer : In `C_(4)`-Plants, Calvin cycle enzymes are absent in A. Mesophyll chloroplasts B. ... C. Guard cell chloroplasts D. Epidermal chloroplasts

Golgi apparatus is absent in (a) Higher plants (b) Yeast (c) Bacteria and blue-green algae (d) Liver cells

Description : Golgi apparatus is absent in (a) Higher plants (b) Yeast (c) Bacteria and blue-green algae (d) Liver cells

Last Answer : Ans. ((c))

A condition in which either pollen is absent or non functional in flowering plants.

Description : A condition in which either pollen is absent or non functional in flowering plants.

Last Answer : Ans. Male Sterility

Golgi apparatus is absent in (a) higher plants (b) yeast (c) bacteria and blue-green algae (d) none.

Description : Golgi apparatus is absent in (a) higher plants (b) yeast (c) bacteria and blue-green algae (d) none.

Last Answer : (c) bacteria and blue-green algae

Which tissue is responsible for the secondary growth? -Do You Know?

Description : Which tissue is responsible for the secondary growth? -Do You Know?

Last Answer : answer:

Assertion : In stem, pericycle take active part in secondary growth. Reason : In dicots, pericycle has the capacity to produce lateral roots.

Description : Assertion : In stem, pericycle take active part in secondary growth. Reason : In dicots, pericycle has the capacity to produce lateral roots.

Last Answer : Assertion : In stem, pericycle take active part in secondary growth. Reason : In dicots, pericycle has ... D. If both assertion and reason are false.

$ Single cotyledon of monocots is called Scutellum ! Monocots show secondary growth.

Description : $ Single cotyledon of monocots is called Scutellum ! Monocots show secondary growth.

Last Answer : $ Single cotyledon of monocots is called Scutellum ! Monocots show secondary growth. A. If both As and R are ... wrong D. If both As and R are wrong.

The testes in humans are situated outside the abdominal cavity inside a pouch called scrotum. The purpose served is for (a) maintaining the scrotal temperature lower than the internal body temperature (b) escaping any possible compression by the visceral organs (c) providing more space for the growth of epididymis (d) providing a secondary sexual feature for exhibiting the male sex.

Description : The testes in humans are situated outside the abdominal cavity inside a pouch called scrotum. The purpose served is for (a) maintaining the scrotal temperature lower than the internal body ... growth of epididymis (d) providing a secondary sexual feature for exhibiting the male sex.

Last Answer : (a) maintaining the scrotal temperature lower than the internal body temperature

Identify the hormone with its correct matching of source and function. (a) Oxytocin - posterior pituitary, growth and maintenance of mammary glands. (b) Melatonin - pineal gland, regulates the normal rhythm of sleepwake cycle. (c) Progesterone - corpus luteum, stimulation of growth and activities of female secondary sex organs. (d) Atrial natriuretic factor - ventricular wall, increases the blood pressure.

Description : Identify the hormone with its correct matching of source and function. (a) Oxytocin - posterior pituitary, growth and maintenance of mammary glands. (b) Melatonin - pineal gland, regulates the ... sex organs. (d) Atrial natriuretic factor - ventricular wall, increases the blood pressure.

Last Answer : (b) Melatonin - pineal gland, regulates the normal rhythm of sleepwake cycle

Read the following four statements (A – D). (A) Both photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane. (B) In dicot stems, a new cambium originates from cells of pericycle at the time of secondary growth. (C) Stamens in flowers of Gloriosa and Petunia are polyandrous.(D) Symbiotic nitrogen fixers occur in free-living state also in soil.

Description : Read the following four statements (A - D). (A) Both photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane. (B) In dicot stems, a new cambium ... Petunia are polyandrous. (D) Symbiotic nitrogen fixers occur in free-living state also in soil.

Last Answer : (A) Both photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane.

Abnormal/anomalous secondary growth occurs in (a) Dracaena (b) ginger (c) wheat (d) sunflower.

Description : Abnormal/anomalous secondary growth occurs in (a) Dracaena (b) ginger (c) wheat (d) sunflower.

Last Answer : (a) Dracaena

Which of the following meristems is responsible for extrastelar secondary growth in dicotyledonous stem? (a) Interfascicular cambium (b) Intercalary meristem (c) Phellogen (d) Intrafascicular cambium

Description : Which of the following meristems is responsible for extrastelar secondary growth in dicotyledonous stem? (a) Interfascicular cambium (b) Intercalary meristem (c) Phellogen (d) Intrafascicular cambium

Last Answer : (d) Intrafascicular cambium

Tunica corpus theory is connected with (a) root apex (b) root cap (c) shoot apex (d) secondary growth.

Description : Tunica corpus theory is connected with (a) root apex (b) root cap (c) shoot apex (d) secondary growth.

Last Answer : (c) shoot apex

Which of the following is without exception in angiosperms? (a) Presence of vessels (b) Double fertilisation (c) Secondary growth (d) Autotrophic nutrition

Description : Which of the following is without exception in angiosperms? (a) Presence of vessels (b) Double fertilisation (c) Secondary growth (d) Autotrophic nutrition

Last Answer : (b) Double fertilisation

Which of the following does not come under the category of 'secondary nutrient' for plant growth? (A) Calcium (B) Magnesium (C) Sulphur (D) Oxygen

Description : Which of the following does not come under the category of 'secondary nutrient' for plant growth? (A) Calcium (B) Magnesium (C) Sulphur (D) Oxygen

Last Answer : (D) Oxygen

Which tissue is responsible for the secondary growth?

Description : Which tissue is responsible for the secondary growth?

Last Answer : Cambium

In spite of several angiospermic features Gnetum is a gymnosperm because…. a) polyembryony is a common features b) prothallial cell is present in the male gametophyte c) seed is naked d) stem exhibit anomalous secondary growth

Description : In spite of several angiospermic features Gnetum is a gymnosperm because…. a) polyembryony is a common features b) prothallial cell is present in the male gametophyte c) seed is naked d) stem exhibit anomalous secondary growth

Last Answer : c) seed is naked

Secondary growth occurs in a. Trees b. Algae c. Fungi d. Bryophytes

Description : Secondary growth occurs in a. Trees b. Algae c. Fungi d. Bryophytes

Last Answer : a. Trees

In monocots showing secondary growth, the secondary vascular bundles are found embedded in

Description : In monocots showing secondary growth, the secondary vascular bundles are found embedded in

Last Answer : In monocots showing secondary growth, the secondary vascular bundles are found embedded in – Conjunctive tissue

Monocots showing secondary growth are

Description : Monocots showing secondary growth are

Last Answer : Monocots showing secondary growth are - Dracaena, Yucca, Cordyline, Agave, Aloe

In plant studies, many species of angiosperms lack secondary growth and therefore do not become woody. They are generally called by which of the following? a) trees b) bines c) herbs d) none of the above

Description : In plant studies, many species of angiosperms lack secondary growth and therefore do not become woody. They are generally called by which of the following? a) trees b) bines c) herbs d) none of the above

Last Answer : ANSWER: C -- HERBS

In a plant, the layer of persistently meristematic tissue, giving rise to secondary tissues, resulting in growth in diameter is which of the following? a) bark b) cambium c) capsule

Description : In a plant, the layer of persistently meristematic tissue, giving rise to secondary tissues, resulting in growth in diameter is which of the following? a) bark b) cambium c) capsule

Last Answer : ANSWER: B -- CAMBIUM

1. Which tissue is responsible for the secondary growth? 2. By whom the salary and perquisites of the Prime Minister of India are decided? 3. What happens to the level of mercury in the barometer tube when it is taken down a coal mine? 4. Mac Mohan Line demarcates the boundary between which countries? 5. When Babur invaded India who was the ruler of Vijayanagara empire in South India?

Description : 1. Which tissue is responsible for the secondary growth? 2. By whom the salary and perquisites of the Prime Minister of India are decided? 3. What happens to the level of mercury in the ... river basin is called Ruhr of India'? 20. During which ruler were Upanishads translated into Persian?

Last Answer : Answer : 1. Cambium 2. Parliament 3. It rises 4. India and China 5. Krishna Deva Raya 6. Generation 7. Dehradun 8. Collenchyma 9. Konkan coast 10. Iltutmish 11. The Ministry is dissolved 12. ... 14. Tapti 15. Aurangzeb 16. Jagdish Bhagwati 17. Hypothalmus 18. The President 19. Damodar 20. Shah Jahan