General Science/Basic Science Plant Physiology Transpiration. Sample Test,Sample questions

Question:
17.Cuticle retards water loss through

1.Passage cells

2. Parenchyma cells

3.Epidermal cells

4.Mesophyll cells

Posted Date:-2021-10-11 17:28:37


Question:
19.A large quantity of transpirational water loss occurs through

1.Stomata

2.Cuticular

3.Lenticular

4.Hydathodes

Posted Date:-2021-10-11 17:28:37


Question:
20.The water vapour accumulates in the intercellular spaces creating a concentration gradient between

1.Atmospheric air and intercellular spaces of leaves

2.Atmospheric air and extracellular spaces of leaves

3.Atmospheric air and intercellular spaces of roots

4.Atmospheric air and intercellular spaces of stems

Posted Date:-2021-10-11 17:28:37


Question:
Accumulation K ions are enhances in the presence of

1. temperature

2.Light

3. Water

4.Oxygen

Posted Date:-2021-10-11 17:28:37


Question:
An ideal condition for transpiration in leaves depends on

1.Thin walls of mesophyll cells

2.Large number stomata

3.Large intercellular spaces

4.All the three

Posted Date:-2021-10-11 17:28:37


Question:
An inverted h shaped three limbed tube is used

1.To measure the rate of transpiration

2.To demonstrate transpiration pull

3.To demonstrate liberation CO? during respiration

4.To demonstrate that O? is evolved during photo synthesis

Posted Date:-2021-10-11 17:28:37


Question:
Differences in water potentials of the guard cells are caused by accumulation or loss of

1.Ca?? ions

2. K? ions

3.Cl? ions

4.Mg?? ions

Posted Date:-2021-10-11 17:28:37


Question:
Due to differences in water potentials of the guard cells  darkness promotes the loss of

1. K? ions

2. Ca?? ions

3. Cl? ions

4.Mg?? ions

Posted Date:-2021-10-11 17:28:37


Question:
Escape of water vapour from leaves takes place through

1.Lenticels

2.Stomata

3.Cuticle

4. Epidermal cells

Posted Date:-2021-10-11 17:28:37


Question:
Excess thermal energy is disposed by the plants

1.Respiration

2.Transpiration

3.Photosynthesis

4.Guttation

Posted Date:-2021-10-11 17:28:37


Question:
Guttation liquid is

1. Pure water

2. Pure solvent

3. Not pure water

4. Not pure solvent

Posted Date:-2021-10-11 17:28:37


Question:
In woody plants the bark tissue contain

1.Guard cells

2.Stomata

3.Lenticels

4.Epidermal cells

Posted Date:-2021-10-11 17:28:37


Question:
Leaf surface is coded by the process of

1.Guttation

2.Respiration

3.Photosynthesis

4.Transpiration

Posted Date:-2021-10-11 17:28:37


Question:
Loss of water in a liquid form along the margins of leaves is known as

1.Guttation

2. Transpiration

3.Photosynthesis

4. Respiration

Posted Date:-2021-10-11 17:28:37


Question:
Loss of water in the guard cells makes them

1.Turgid

2.Flaccid

3.Cupid

4.Rigid

Posted Date:-2021-10-11 17:28:37


Question:
Minute pores surrounded by two guard cells found on epidermis are called

1. Guard cells

2.Stomata

3.Lenticels

4.Epidermal cells

Posted Date:-2021-10-11 17:28:37


Question:
Photosynthetic carbon assimilation in guard cells is related to

1.Cuticular movement

2.Stomatal movement

3.Lenticular movement

4.Guttation

Posted Date:-2021-10-11 17:28:37


Question:
Relative density of mercury is

1.3.6 gms

2. 13.6 gms

3. 90 gms

4. 96.4 gms

Posted Date:-2021-10-11 17:28:37


Question:
Stomata open and close due to changes in the guard cells by

1.Osmotic pressure

2. Root pressure

3. Turgor pressure

4. Capillary pressure

Posted Date:-2021-10-11 17:28:37


Question:
The amount of absorbed water lost by plants in the form of vapour is

1.10%

2.50%

3.80%

4.90%

Posted Date:-2021-10-11 17:28:37


Question:
The apparatus used to measure the rate off transpiration isGanong s light screen

1.Ganong s respiroscope

2.Ganong s photometer

3.Ganong s light screen

4.Thistle funnel

Posted Date:-2021-10-11 17:28:37


Question:
The entry of water from adjacent cells to guard cells is caused by the differences in water potential of their Opt 1 : Protoplasts

1.Chloroplasts

2.Plastids

3.Carotenoids

4.rotoplasts

Posted Date:-2021-10-11 17:28:37


Question:
The entry of water from adjacent cells to guard cells or vice versa is caused by the differences in

1.Osmosis

2.Diffusion

3.Water potential

4.Imbibition

Posted Date:-2021-10-11 17:28:37


Question:
The entry of water makes guard cells as

1.Turgid

2.Flaccid

3.Rigid

4.Cupid

Posted Date:-2021-10-11 17:28:37


Question:
The escape of water vapour from leaves through stomata by diffusion is caused by

1.Active transport

2.Concentration gradient

3.Osmosis

4.Guttation

Posted Date:-2021-10-11 17:28:37


Question:
The humidity in atmosphere affects

1.respiration

2.transpiration

3.growth

4.photosynthesis

Posted Date:-2021-10-11 17:28:37


Question:
The ideal material for the disposal of solar energy from the plants is

1. Water

2. K? ions

3.Organic compounds

4. Pectic substances

Posted Date:-2021-10-11 17:28:37


Question:
The internal temperature of the plant cells become uniform and constant by

1.Photosynthesis

2.Respiration

3. Transpiration

4.Guttation

Posted Date:-2021-10-11 17:28:37


Question:
The stoma is open when the guard cells are

1.Flaccid

2.Rigid

3.Turgid

4.Cupid

Posted Date:-2021-10-11 17:28:37


Question:
The type of transpiration which is insignificant as compared to stomatal transpiration

1.Cuticular

2.Lenticular

3.Guttation

4.Hydathodes

Posted Date:-2021-10-11 17:28:37


Question:
This is not a type of transpiration

1.Stomatal

2.Cuticular

3.Lenticular

4.Guttation

Posted Date:-2021-10-11 17:28:37


Question:
Transpiration helps in absorption and translocation of mineral salts by means of the

1.Push and pull force

2.Pull and capillary force

3.Push and suction force

4.Pull and suction force

Posted Date:-2021-10-11 17:28:37


Question:
Transpiration through lenticels is called

1.Stomatal

2.Lenticular

3.Cuticular

4. Guttation

Posted Date:-2021-10-11 17:28:37


Question:
Water is translocated through xylem tissue to the

1.Mesophyll cells of leaves

2.Epidermal cells of leaves

3.Passage cells of roots

4.Parenchymal cells of stems

Posted Date:-2021-10-11 17:28:37


Question:
Water potential of the guard cells during day time is

1.High

2.Very high

3. Low

4. Very low

Posted Date:-2021-10-11 17:28:37


Question:
Water potential of the guard cells during night time isLow

1.Low

2.very low

3. High

4.vary high

Posted Date:-2021-10-11 17:28:37


Question:
Water vapour is escaped from leaves through stomata by

1.Osmosis

2. Guttation

3. Diffusion

4. Capillary force

Posted Date:-2021-10-11 17:28:37


Question:
When guard cells are flaccid the stoma is

1.Closed

2.Opened

3.Broadenced

4.Narrowed

Posted Date:-2021-10-11 17:28:37


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