The stomatal apparatus is bordered by -Biology

The stomatal apparatus is bordered by -Biology
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What is stomatal apparatus? -Biology

Description : What is stomatal apparatus? -Biology

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Stomatal apparatus function -Biology

Description : Stomatal apparatus function -Biology

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Given below is the diagram of a stomatal apparatus. In which of the following all the four parts labelled as A, B, C and D are correctly identified? A B C D A B C D (a) Subsidiary Epidermal Guard cell Stomatal cell cell aperture (b) Guard cell Stomatal Subsidiary Epidermal aperture cell cell (c) Epidermal Guard cell Stomatal Subsidiary cell cell aperture (d) Epidermal Subsidiary Stomatal Guard cell cell cell aperture

Description : Given below is the diagram of a stomatal apparatus. In which of the following all the four parts labelled as A, B, C and D are correctly identified? A B C D A B C D ... ) Epidermal Guard cell Stomatal Subsidiary cell cell aperture (d) Epidermal Subsidiary Stomatal Guard cell cell cell aperture

Last Answer : d) Epidermal Subsidiary Stomatal Guard cell cell cell aperture

Which of the following statements is not true for stomatal apparatus? (a) Guard cells invariably possess chloroplasts and mitochondria. (b) Guard cells are always surrounded by subsidiary cells. (c) Stomata are involved in gaseous exchange. (d) Inner wall of guard cells are thick

Description : Which of the following statements is not true for stomatal apparatus? (a) Guard cells invariably possess chloroplasts and mitochondria. (b) Guard cells are always surrounded by subsidiary cells. (c) Stomata are involved in gaseous exchange. (d) Inner wall of guard cells are thick

Last Answer : (b) Guard cells are always surrounded by subsidiary cells.

What are bordered pits? -Biology

Description : What are bordered pits? -Biology

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(a) Draw a diagram to show open stomatal pore and label on it: (i) guard cells (ii) chloroplast (b) State two functions of stomata. (c) How do guard cells regulate the opening and closing of stomatal pore? -Biology

Description : (a) Draw a diagram to show open stomatal pore and label on it: (i) guard cells (ii) chloroplast (b) State two functions of stomata. (c) How do guard cells regulate the opening and closing of stomatal pore? -Biology

Last Answer : (a) (b) Two functions of stomata are: (i) Exchange of gases between the plant and the atmosphere takes place through stomata. (ii)Transpiration in plants takes place through stomata. ( ... through these stomata, the plant closes these pores when it does not require carbon dioxide for photosynthesis.

Explain the mechanism of stomatal opening and closing. -Biology

Description : Explain the mechanism of stomatal opening and closing. -Biology

Last Answer : answer:

Which Indian city is bordered by Tamabil ?

Last Answer : The city of Dauki in India is located along the Tamabil border.

Which district of Bangladesh is bordered by India and Myanmar ?

Last Answer : The district of Bangladesh which borders India and Myanmar: Rangamati district (only).

Assertion `:-` Proximal convoluted tubule is lined by brush-bordered cuboidal epithelium. Reason `:-` PCT is main site of selective reabsorption of us

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Brush bordered epithelium is found in

Description : Brush bordered epithelium is found in

Last Answer : Brush bordered epithelium is found in A. Trachea B. Stomach C. Small intestine D. Fallopian tube .

The Indian Ocean bordered by...

Description : The Indian Ocean bordered by...

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Who bordered Alexander's empire on the west?

Description : Who bordered Alexander's empire on the west?

Last Answer : The Greek city-states in Western Europe, the Roman and Italianpeoples, and the North African peoples and Carthaginians.

What bodies of water bordered the Aztec empire?

Description : What bodies of water bordered the Aztec empire?

Last Answer : Feel Free to Answer

What triangular land bordered by water on three sides connects the continents of Africa and Asia?

Description : What triangular land bordered by water on three sides connects the continents of Africa and Asia?

Last Answer : Perhaps the Sinai.

What country is bordered by Senegal in three sides and the Atlantic Ocean on the west?

Description : What country is bordered by Senegal in three sides and the Atlantic Ocean on the west?

Last Answer : What is the answer ?

What country is bordered by turkey?

Description : What country is bordered by turkey?

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What is the 4th largest of the Great Lakes and is bordered by Canada to the north and Michigan New York Ohio and Pennsylvania to the west and to the south?

Description : What is the 4th largest of the Great Lakes and is bordered by Canada to the north and Michigan New York Ohio and Pennsylvania to the west and to the south?

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What is the name of the sea that is bordered by Central America on the West South America on the south and Cuba on the North?

Description : What is the name of the sea that is bordered by Central America on the West South America on the south and Cuba on the North?

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What colony bordered Virginia on the north east?

Description : What colony bordered Virginia on the north east?

Last Answer : Maryland is NE of VA

Which district of UP is bordered by an international border? (1) Ballia (2) Bahraich (3) Basti (4) Barabanki

Description : Which district of UP is bordered by an international border? (1) Ballia (2) Bahraich (3) Basti (4) Barabanki

Last Answer : (2) Bahraich

Sieve tubes are suited for translocation of food because they possess (a) bordered pits (b) no end walls (c) broader lumen and perforated cross walls (d) no protoplasm

Description : Sieve tubes are suited for translocation of food because they possess (a) bordered pits (b) no end walls (c) broader lumen and perforated cross walls (d) no protoplasm

Last Answer : (c) broader lumen and perforated cross walls

Bordered pits are found in (a) sieve cells (b) vessel wall (c) companion cells (d) sieve tube wall.

Description : Bordered pits are found in (a) sieve cells (b) vessel wall (c) companion cells (d) sieve tube wall.

Last Answer : (b) vessel wall

Sieve tubes are suited for translocation of food because they possess (a) bordered pits (b) no end walls (c) broader lumen and perforated cross walls (d) no protoplasm

Description : Sieve tubes are suited for translocation of food because they possess (a) bordered pits (b) no end walls (c) broader lumen and perforated cross walls (d) no protoplasm

Last Answer : (c) broader lumen and perforated cross walls

Bordered pits are found in (a) sieve cells (b) vessel wall (c) companion cells (d) sieve tube wall

Description : Bordered pits are found in (a) sieve cells (b) vessel wall (c) companion cells (d) sieve tube wall

Last Answer : (b) vessel wall

What is the name given to a flat-topped plateau bordered on all sides by cliffs?

Description : What is the name given to a flat-topped plateau bordered on all sides by cliffs?

Last Answer : ANSWER: MESA or BUTTE

How do guard cells regulate opening and closing of stomatal pores ? -Science

Description : How do guard cells regulate opening and closing of stomatal pores ? -Science

Last Answer : The opening and closing of stomatal pores is controlled by the guard cells, when water flows into the guard cells, they swell, become curved and cause the pore to open whereas when the guard cells lose water, they shrink, become straight and close the stomatal pore

Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening carbon dioxide diffuses into the plant duri

Description : Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening carbon dioxide diffuses into the plant duri

Last Answer : Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal ... durign day time, and the other at night.

stomatal crypts are found in the leaf of

Description : stomatal crypts are found in the leaf of

Last Answer : stomatal crypts are found in the leaf of A. Sunflower B. Olender C. Maize D. Nymphaea

The hormone reducing transpiration rate by inducing stomatal closure is: (a) ABA (b) Ethylene (c) Cytokipin (d) Auxin

Description : The hormone reducing transpiration rate by inducing stomatal closure is: (a) ABA (b) Ethylene (c) Cytokipin (d) Auxin

Last Answer : Ans. ((a))

Consider the following pairs Plant hormone Function/Effect 1. Indole-3 acetic acid — Rooting in cuttings 2. Gibberellic acid — Stomatal closure 3. Ethylene — Fruit ripening 4. Zeatin — Cell division Which of the above pairs are correctly matched? Select the correct answer from the following: (a) 1 and 3 (b) 1, 2, and 4 (c) 2 and 4 (d) 1, 2, 3, and 4

Description : Consider the following pairs Plant hormone Function/Effect 1. Indole-3 acetic acid - Rooting in cuttings 2. Gibberellic acid - Stomatal closure 3. Ethylene - Fruit ripening 4. Zeatin - Cell division Which of the above pairs are correctly matched ... 3 (b) 1, 2, and 4 (c) 2 and 4 (d) 1, 2, 3, and 4

Last Answer : Ans:(b)

Which of the following statements are true? 1. Cytokinins promote stomatal opening 2. Sprays of indole -3 acetic acid can inhibit premature fruit fall 3. The growth movements caused by a unilateral stimulus are known as nastic movements 4. The seeds of desert plants will not germinate unless they have been subjected to a high temperature for some time Questions Select the correct answer from the following: (a) 1, 2, and 4 (b) 2 and 4 (c) 1, 2, and 4 (d) 1, 2, 3, and 4

Description : Which of the following statements are true? 1. Cytokinins promote stomatal opening 2. Sprays of indole -3 acetic acid can inhibit premature fruit fall 3. The growth movements caused by a unilateral stimulus are known as nastic movements 4. The ... 4 (b) 2 and 4 (c) 1, 2, and 4 (d) 1, 2, 3, and 4

Last Answer : Ans:(a)

Stomatal opening is based on (1) Exosrnosis (2) Endosmosis (3) Plasmolysis in guard cells (4) Decrease in concentration of cell sap

Description : Stomatal opening is based on (1) Exosrnosis (2) Endosmosis (3) Plasmolysis in guard cells (4) Decrease in concentration of cell sap

Last Answer : (2) Endosmosis Explanation: According to the K+ ion theory the guard cells absorb K+ ions from the cells around them as they produce ATP (due to photosynthesis) and become ... guard cells become turgid and the stomata opens. Decreasing light intensity and photosynthesis causes Stomatal closing.

The special modified epiderniai cells surrounding stomatal pore are called - (1) Epithelial cells (2) Guard cells (3) Subsidiary cells (4) Accessory cells

Description : The special modified epiderniai cells surrounding stomatal pore are called - (1) Epithelial cells (2) Guard cells (3) Subsidiary cells (4) Accessory cells

Last Answer : (2) Guard cells Explanation: The pore is bordered by a pair of specialized parenchyma cells known as guard cells that are responsible for regulating the size of the opening. Guard cells are specialized cells in the epidermis of leaves, stems and other organs that are used to control gas exchange.

Conversion of starch to sugar is essential for - (1) Stomatal opening (2) Stomatal closing (3) Stomatal formation (4) Stomatal growth

Description : Conversion of starch to sugar is essential for - (1) Stomatal opening (2) Stomatal closing (3) Stomatal formation (4) Stomatal growth

Last Answer : (1) Stomatal opening Explanation: For keeping the stomata open a constant expenditure of energy is required. This is provided by the conversion of starch to sugar. The stomata! opening is, in turn ... at the leaves while their stomata are open for the passage of CO2 and 02 during photosynthesis.

The opening and closing of the stomatal pores is a function of the - (1) Guard cells (2) Chloroplast (3) Xylem (4) Phloem

Description : The opening and closing of the stomatal pores is a function of the - (1) Guard cells (2) Chloroplast (3) Xylem (4) Phloem

Last Answer : (1) Guard cells Explanation: The opening and closing of the pores is a function of the guard cells. They swell when water flows into them, causing the stomatal pore to open and likewise, the pore closes if the guard cells shrink.

Abscisic acid causes (a) stomatal closure (b) stem elongation (c) leaf expansion (d) root elongation.

Description : Abscisic acid causes (a) stomatal closure (b) stem elongation (c) leaf expansion (d) root elongation.

Last Answer : (a) stomatal closure

Which is produced during water stress that brings stomatal closure? (a) Ethylene (b) Abscisic acid (c) Ferulic acid (d) Coumarin

Description : Which is produced during water stress that brings stomatal closure? (a) Ethylene (b) Abscisic acid (c) Ferulic acid (d) Coumarin

Last Answer : (b) Abscisic acid

Which one of the following pairs, is not correctly matched? (a) Gibberellic acid - Leaf fall (b) Cytokinin - Cell division (c) IAA - Cell wall elongation (d) Abscissic acid - Stomatal closure

Description : Which one of the following pairs, is not correctly matched? (a) Gibberellic acid - Leaf fall (b) Cytokinin - Cell division (c) IAA - Cell wall elongation (d) Abscissic acid - Stomatal closure

Last Answer : (a) Gibberellic acid - Leaf fall

Conversion of starch to organic acids is required for (a) stomatal opening (b) stomatal closing (c) stomatal formation (d) stomatal activity.

Description : Conversion of starch to organic acids is required for (a) stomatal opening (b) stomatal closing (c) stomatal formation (d) stomatal activity.

Last Answer : a) stomatal opening

In guard cells when sugar is converted into starch, the stomatal pore (a) closes completely (b) opens partially (c) opens fully (d) remains unchanged.

Description : In guard cells when sugar is converted into starch, the stomatal pore (a) closes completely (b) opens partially (c) opens fully (d) remains unchanged.

Last Answer : a) closes completely

Which one gives the most valid and recent explanation for stomatal movement? (a) Starch hydrolysis (b) Guard cell photosynthesis (c) Transpiration (d) Potassium influx and efflux

Description : Which one gives the most valid and recent explanation for stomatal movement? (a) Starch hydrolysis (b) Guard cell photosynthesis (c) Transpiration (d) Potassium influx and efflux

Last Answer : (d) Potassium influx and efflux

Water vapour comes out from the plant leaf through the stomatal opening. Through the samestomatal opening carbon dioxide diffuses into the plant during photosynthesis. Reason out the above statements using one of following options. (a) The above processes happen only during night time. (b) One process occurs during day time and the other at night. (c) Both processes cannot happen simultaneously. (d) Both processes can happen together because the diffusion coefficient of water and CO2 is different

Description : Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening carbon dioxide diffuses into the plant during photosynthesis. Reason out the above ... Both processes can happen together because the diffusion coefficient of water and CO2 is different

Last Answer : (d) Both processes can happen together because the diffusion coefficient of water and CO2 is different

Which of the following facilitates opening of stomatal aperture? (a) Decrease in turgidity of guard cells (b) Radial orientation of cellulose microfibrils in the cell wall of guard cells (c) Longitudinal orientation of cellulose microfibrils in the cell wall of guard cells (d) Contraction of outer wall of guard cells

Description : Which of the following facilitates opening of stomatal aperture? (a) Decrease in turgidity of guard cells (b) Radial orientation of cellulose microfibrils in the cell wall of guard cells (c) ... microfibrils in the cell wall of guard cells (d) Contraction of outer wall of guard cells

Last Answer : (a) Decrease in turgidity of guard cells

Stomatal movement is not affected by (a) temperature (b) light (c) O2 concentration (d) CO2 concentration.

Description : Stomatal movement is not affected by (a) temperature (b) light (c) O2 concentration (d) CO2 concentration.

Last Answer : c) O2 concentration

Maximum loss of water occurs through a. Cuticular transpiration b. Lenticular transpiration c. stomatal transpiration d. None of these

Description : Maximum loss of water occurs through a. Cuticular transpiration b. Lenticular transpiration c. stomatal transpiration d. None of these

Last Answer : c. stomatal transpiration

Choose the right combination: (A) Quinine', antimalarial, isoquinoline alkaloid (B) Reserpine, -antihypertensive, indole alkaloid (C) Quantitative microscopy, stomatal number, myrrh (D) Palmitic acid, salicylic acid , fatty acids

Description : Choose the right combination: (A) Quinine', antimalarial, isoquinoline alkaloid (B) Reserpine, -antihypertensive, indole alkaloid (C) Quantitative microscopy, stomatal number, myrrh (D) Palmitic acid, salicylic acid , fatty acids

Last Answer : (B) Reserpine, -antihypertensive, indole alkaloid

Which of the following facilitates opening of stomatal aperture ? (1) Decrease in turgidity of guard cells (2) Radial orientation of cellulose microfibrils in the cell wall of guard cells (3) Longitudinal orientation of cellulose microfibrils in the cell wall of guard cells (4) Contraction of outer wall of guard cells

Description : Which of the following facilitates opening of stomatal aperture ? (1) Decrease in turgidity of guard cells (2) Radial orientation of cellulose microfibrils in the cell wall of guard cells (3) Longitudinal ... microfibrils in the cell wall of guard cells (4) Contraction of outer wall of guard cells

Last Answer : (2) Radial orientation of cellulose microfibrils in the cell wall of guard cells

Stomatal movement is not affected by (1) Temperature (2) Light (3) O2 concentration (4) CO2 concentration

Description : Stomatal movement is not affected by (1) Temperature (2) Light (3) O2 concentration (4) CO2 concentration

Last Answer : (3) O2 concentration

Conversion of starch to sugar is essential for (1) Stomatal opening (2) Stomatal closing (3) Stomatal formation (4) Stomatal growth

Description : Conversion of starch to sugar is essential for (1) Stomatal opening (2) Stomatal closing (3) Stomatal formation (4) Stomatal growth

Last Answer : Stomatal opening