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

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

1 Answer

Answer :

(3) O2 concentration
by

Related questions

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

Photo chemical smog is a result-ant of the reaction among – (1) High concentration of NO2, O3, and CO in the evening (2) CO, CO2 and NO2 at low temperature (3) CO, O2 and peroxy acetyl nitrate in the presence of Sunlight (4) NO2, O3 and peroxy acetyl nitrate in the presence of Sunlight

Description : Photo chemical smog is a result-ant of the reaction among – (1) High concentration of NO2, O3, and CO in the evening (2) CO, CO2 and NO2 at low temperature (3) CO, O2 and peroxy acetyl nitrate in the presence of Sunlight (4) NO2, O3 and peroxy acetyl nitrate in the presence of Sunlight

Last Answer : (4) NO2, O3 and peroxy acetyl nitrate in the presence of Sunlight Explanation: Photochemical smog is a unique type of air pollution which is caused by reactions between sunlight and pollutants like hydrocarbons and nitrogen dioxide (NO and NO2).

When you hold your breath, which of the following gas changes in blood would first lead to the urge to breathe? (a) Falling CO2 concentration (b) Rising CO2 and falling O2 concentration (c) Falling O2 concentration (d) Rising CO2 concentration

Description : When you hold your breath, which of the following gas changes in blood would first lead to the urge to breathe? (a) Falling CO2 concentration (b) Rising CO2 and falling O2 concentration (c) Falling O2 concentration (d) Rising CO2 concentration

Last Answer : (d) Rising CO2 concentration

Yawning occurs– (1) due to excess concentration of CO2 in blood (2) due to excess concentration of CO2 in lungs (3) due to excess concentration of O2 in lungs (4) None of these

Description : Yawning occurs– (1) due to excess concentration of CO2 in blood (2) due to excess concentration of CO2 in lungs (3) due to excess concentration of O2 in lungs (4) None of these

Last Answer : due to excess concentration of CO2 in blood

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

Photorespiration is favoured by (a) high temperature and low O2 (b) high humidity and temperature (c) high O2 and low CO2 (d) high CO2 and low O2.

Description : Photorespiration is favoured by (a) high temperature and low O2 (b) high humidity and temperature (c) high O2 and low CO2 (d) high CO2 and low O2.

Last Answer : (c) high O2 and low CO2

Efficiency of the combustion of a fuel is judged by the __________ the flue gas. (A) % of CO2 in (B) % of O2 in (C) Temperature of (D) Colour of

Description : Efficiency of the combustion of a fuel is judged by the __________ the flue gas. (A) % of CO2 in (B) % of O2 in (C) Temperature of (D) Colour of

Last Answer : (B) % of O2 in

All gases during throttling process at atmospheric temperature and pressure show a cooling effect except (A) CO2 (B) H2 (C) O2 (D) N2

Description : All gases during throttling process at atmospheric temperature and pressure show a cooling effect except (A) CO2 (B) H2 (C) O2 (D) N2

Last Answer : (B) H2

Answer the following S. No Statement Chose the correct answer OR Fill-in-the-blanks 1 Fyrite measures CO2, O2 and SO2 True/False 2 Ultrasonic Flow Meter uses the principle of____& ____ Fill in the blanks 3 Non Contact Infrared Thermometer cannot measure temperature of objects placed in hazardous places True/False 4 To measure the RPM of a Flywheel, ______ type of RPM meter is used and for a visible shaft-end _______ type of RPM meter is used. Fill in the blanks 5 In a switch yard, _____ instrument is used to identify the loose joints and terminations Fill in the blanks 6 Every Designated Consumer shall have its first energy audit conducted by ________ Energy Auditor within ______ months of

Description :  Answer the following S. No Statement Chose the correct  answer OR Fill-in-the-blanks 1 Fyrite measures CO2, O2 and SO2 True/False 2 Ultrasonic Flow Meter uses the principle of____& ____ Fill in the ... of RPM  meter is used and for a visible shaft-end _______ type of  RPM meter is used.

Last Answer : Sr  No Statement Chose the correct  answer OR Fill-in-the-blanks Solution 1 Fyrite measures CO2, O2 and  SO2 True/False False 2 Ultrasonic Flow Meter uses the  principle of____& ____ ... ]  10 In a gasification system the  reduction zone is above the  combustion zone True/False False

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.

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

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

Last Answer : Endosmosis

With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct? (a) Increasing atmospheric CO2 concentration up to 0.05% can enhance CO2 fixation rate.(b) C3 plants respond to higher temperature with enhanced photosynthesis while C4 plants have much lower temperature optimum. (c) Tomato is a greenhouse crop which can be grown in CO2-enriched atmosphere for higher yield. (d) Light saturation for CO2 fixation occurs at 10% of full sunlight.

Description : With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct? (a) Increasing atmospheric CO2 concentration up to 0.05% can enhance CO2 fixation rate. ( ... for higher yield. (d) Light saturation for CO2 fixation occurs at 10% of full sunlight.

Last Answer : (b) C3 plants respond to higher temperature with enhanced photosynthesis while C4 plants have much lower temperature optimum

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

In multistage equilibrium conversion of SO2 to SO3 (2SO2 + O2 ⇌ 2SO3 ), the reverse reaction becomes appreciable at a temperature of 550° C. The percentage equilibrium conversion of SO2 to SO3 can be increased by (A) Increasing the oxygen concentration (B) Putting more quantity of V2O5 catalyst in the converter (C) Removing some quantity of SO3 during intermediate stage (D) Maintaining low temperature & pressure in the converter

Description : In multistage equilibrium conversion of SO2 to SO3 (2SO2 + O2 ⇌ 2SO3 ), the reverse reaction becomes appreciable at a temperature of 550° C. The percentage equilibrium conversion of SO2 to ... some quantity of SO3 during intermediate stage (D) Maintaining low temperature & pressure in the converter

Last Answer : (C) Removing some quantity of SO3 during intermediate stage

Can humans survive breathing an 80/20 mix of CO2 and O2?

Description : Can humans survive breathing an 80/20 mix of CO2 and O2?

Last Answer : Humans breath Air which is a mixture of about 78% Nitrogen, 21% Oxygen and trace other gases including 0.03% Carbon Dioxide. Much higher levels of Oxygen would make it easy for things to catch ... can tolerate a higher level because they use the Carbon Dioxide. and water to make sugars and cells.

If 48.0 g of O2 and 4.4 g of CO2 are placed in a 10.0 L container at 21c. what is the pressure of mixture of gases?

Description : If 48.0 g of O2 and 4.4 g of CO2 are placed in a 10.0 L container at 21c. what is the pressure of mixture of gases?

Last Answer : Need answer

What of the following reactions demonstrates a synthesis reaction A) Mg plus H2SO4 and gt MgSO4 plus H2 B) 2NaCl and gt 2Na plus Cl2 C) C plus O2 and gt CO2 D) Zn plus 2HCl and gt ZnCl2 plus H2?

Description : What of the following reactions demonstrates a synthesis reaction A) Mg plus H2SO4 and gt MgSO4 plus H2 B) 2NaCl and gt 2Na plus Cl2 C) C plus O2 and gt CO2 D) Zn plus 2HCl and gt ZnCl2 plus H2?

Last Answer : C+O2 →CO2

If you start with 32 grams of CH4 and react it with O2 to form 88 grams CO2 and 72 grams H2O. How much O2 in grams was consumed?

Description : If you start with 32 grams of CH4 and react it with O2 to form 88 grams CO2 and 72 grams H2O. How much O2 in grams was consumed?

Last Answer : 128 g of oxygen are needed.

If you start with 32 grams of CH4 and react it with O2 to form 88 grams CO2 and 72 grams H2O. How much O2 in grams was consumed?

Description : If you start with 32 grams of CH4 and react it with O2 to form 88 grams CO2 and 72 grams H2O. How much O2 in grams was consumed?

Last Answer : 128 g of oxygen are needed.

The oxygen d issoc iat ion curve for hemoglobin is shifted to the right by (A) Decreased O2 tension (B) Decreased CO2 tension (C) Increased CO2 tension (D) Increased pH

Description : The oxygen d issoc iat ion curve for hemoglobin is shifted to the right by (A) Decreased O2 tension (B) Decreased CO2 tension (C) Increased CO2 tension (D) Increased pH

Last Answer : Answer : C

After re leas ing O2 at the tissues, hemoglobin transports (A) CO2 and protons to the lungs (B) O2 to the lungs (C) CO2 and protons to the tissue (D) Nutrients

Description : After re leas ing O2 at the tissues, hemoglobin transports (A) CO2 and protons to the lungs (B) O2 to the lungs (C) CO2 and protons to the tissue (D) Nutrients

Last Answer : Answer : A

Tubercular bacilli grow best in a. Absence of O2 b. Presence of CO2 c. Presence of O2 d. None of these

Description : Tubercular bacilli grow best in a. Absence of O2 b. Presence of CO2 c. Presence of O2 d. None of these

Last Answer : Ans: B

In a petrol engine, which of the following gas gets exhausted out without burning and without transformation? a. CO2 b. CO c. O2 d. N2

Description : In a petrol engine, which of the following gas gets exhausted out without burning and without transformation? a. CO2 b. CO c. O2 d. N2

Last Answer : ANSWER d. N2

Blood haemoglobin has high affinity for (a) CO2 (b) CO (c) O2 (d) H

Description : Blood haemoglobin has high affinity for (a) CO2 (b) CO (c) O2 (d) H

Last Answer : Ans:(b)

O2 released in the process of photosynthesis comes from (a) CO2 (b) Water (c) Sugar (d) Pyruvic acid

Description : O2 released in the process of photosynthesis comes from (a) CO2 (b) Water (c) Sugar (d) Pyruvic acid

Last Answer : Ans:(b)

The balance of CO2 and O2 in atmosphere is due to _____. (1) Transportation (2) Photosynthesis (3) Respiration (4) Evaporation

Description : The balance of CO2 and O2 in atmosphere is due to _____. (1) Transportation (2) Photosynthesis (3) Respiration (4) Evaporation

Last Answer : (2) Photosynthesis Explanation: Photosynthesis takes in the carbon dioxide produced by all breathing organisms and reintroduces oxygen into the atmosphere.

Which of the following is not a greenhouse gas? (1) Water vapour (2) O2 (3) O3 (4) CO2

Description : Which of the following is not a greenhouse gas? (1) Water vapour (2) O2 (3) O3 (4) CO2

Last Answer : (2) O2 Explanation: Greenhouse gases are those that can absorb and emit infrared radiation, but not radiation in or near the visible spectrum. The most abundant greenhouse gases in Earth's atmosphere are: Water ... , Carbon dioxide (CO2), Methane (CH4), Nitrous oxide (N2O), Ozone (O3) and CFCs.

Supersonic jet causes pollution by thinning of - (1) O3 layer (2) O2 layer (3) SO2 layer (4) CO2 layer

Description : Supersonic jet causes pollution by thinning of - (1) O3 layer (2) O2 layer (3) SO2 layer (4) CO2 layer

Last Answer : (1) O3 layer Explanation: Three forms (or allotropes) of oxygen are involved in the ozone-oxygen cycle: oxygen atoms (O or atomic oxygen), oxygen has (O2 or diatomic oxygen), and ... oxygen radicals. The atomic oxygen radicals then combine with separate O2 molecules to create two O3 molecules.

Which of the following gases makes bread or cake rise making them soft and spongy? (1) CO (2) H2 (3) CO2 (4) O2

Description : Which of the following gases makes bread or cake rise making them soft and spongy? (1) CO (2) H2 (3) CO2 (4) O2

Last Answer : (3) CO2 Explanation: Breads rise due to the process of fermentation, a chemical process by which molecules such as glucose are broken down an aerobically.

Corrosiveness of steam condensate is due to the presence of (A) CO2 (B) Dissolved O2 (C) Both (A) & (B) (D) Neither (A) nor (B)

Description : Corrosiveness of steam condensate is due to the presence of (A) CO2 (B) Dissolved O2 (C) Both (A) & (B) (D) Neither (A) nor (B)

Last Answer : (C) Both (A) & (B)

The supersonic jets cause pollution by the thinning of (a) O2 layer (b) O3 layer (c) CO2 layer (d) SO2 layer.

Description : The supersonic jets cause pollution by the thinning of (a) O2 layer (b) O3 layer (c) CO2 layer (d) SO2 layer.

Last Answer : (b) O3 layer

What gases are produced in anaerobic sludge digesters? (a) Methane and CO2 only (b) Methane, Hydrogen sulphide and CO2 (c) Methane, Hydrogen sulphide and O2 (d) Hydrogen sulphide and CO2

Description : What gases are produced in anaerobic sludge digesters? (a) Methane and CO2 only (b) Methane, Hydrogen sulphide and CO2 (c) Methane, Hydrogen sulphide and O2 (d) Hydrogen sulphide and CO2

Last Answer : (b) Methane, Hydrogen sulphide and CO2

Why must one control green plant growth in aquaculture or fish farming? [a] Plants compete with fish for available DO [b] Plants compete with fish for available O2 [c] Plants compete with fish for available CO2 [d] All of these [e] None of the above

Description : Why must one control green plant growth in aquaculture or fish farming? [a] Plants compete with fish for available DO [b] Plants compete with fish for available O2 [c] Plants compete with fish for available CO2 [d] All of these [e] None of the above

Last Answer : [a] Plants compete with fish for available DO

The lymph serves to (a) return the interstitial fluid to the blood (b) return the WBCs and RBCs to the lymph nodes (c) transport CO2 to the lungs (d) transport O2 to the brain

Description : The lymph serves to (a) return the interstitial fluid to the blood (b) return the WBCs and RBCs to the lymph nodes (c) transport CO2 to the lungs (d) transport O2 to the brain

Last Answer : (a) return the interstitial fluid to the blood

How the transport of O2 and CO2 by blood happens? (a) With the help of WBCs and blood serum (b) With the help of platelets and corpuscles (c) With the help of RBCs and blood plasma (d) With the help of RBCs and WBCs

Description : How the transport of O2 and CO2 by blood happens? (a) With the help of WBCs and blood serum (b) With the help of platelets and corpuscles (c) With the help of RBCs and blood plasma (d) With the help of RBCs and WBCs

Last Answer : (c) With the help of RBCs and blood plasma

What is true about RBCs in humans? (a) They carry about 20-25 percent of CO2. (b) They transport 99.5 percent of O2. (c) They transport about 80 percent oxygen only and the rest 20 percent of it is transported in dissolved state in blood plasma. (d) They do not carry CO2 at all.

Description : What is true about RBCs in humans? (a) They carry about 20-25 percent of CO2. (b) They transport 99.5 percent of O2. (c) They transport about 80 percent oxygen only and the rest 20 percent of it is transported in dissolved state in blood plasma. (d) They do not carry CO2 at all.

Last Answer : (a) They carry about 20-25 percent of CO2.

Identify the wrong statement with reference to transport of oxygen. (a) Binding of oxygen with haemoglobin is mainly related to partial pressure of O2. (b) Partial pressure of CO2 can interfere with O2 binding with haemoglobin. (c) Higher H+ conc. in alveoli favours the formation of oxyhaemoglobin. (d) Low pCO2 in alveoli favours the formation of oxyhaemoglobin.

Description : Identify the wrong statement with reference to transport of oxygen. (a) Binding of oxygen with haemoglobin is mainly related to partial pressure of O2. (b) Partial pressure of CO2 can interfere ... the formation of oxyhaemoglobin. (d) Low pCO2 in alveoli favours the formation of oxyhaemoglobin.

Last Answer : (c) Higher H+ conc. in alveoli favours the formation of oxyhaemoglobin.

The figure given below shows a small part of human lung where exchange of gases takes place. Select the option which represents labelled part (A, B, C or D) correctly identified along with its function. (a) C : Arterial capillary - Passes oxygen to tissues (b) A : Alveolar cavity - Main site of exchange of respiratory gases (c) D : Capillary wall - Exchange of O2 and CO2 takes place here (d) B : Red blood cells - Transport of CO2 mainly

Description : The figure given below shows a small part of human lung where exchange of gases takes place. Select the option which represents labelled part (A, B, C or D) correctly identified along with its function. ... Exchange of O2 and CO2 takes place here (d) B : Red blood cells - Transport of CO2 mainly

Last Answer : (b) A : Alveolar cavity - Main site of exchange of respiratory gases

Which combination of gases is suitable for fruit ripening? (a) 80% CH4 and 20% CO2 (b) 80% CO2 and 20% O2 (c) 80% C2H4 and 20% CO2 (d) 80% CO2 and 20% CH2

Description : Which combination of gases is suitable for fruit ripening? (a) 80% CH4 and 20% CO2 (b) 80% CO2 and 20% O2 (c) 80% C2H4 and 20% CO2 (d) 80% CO2 and 20% CH2

Last Answer : (c) 80% C2H4 and 20% CO2

R.Q. is (a) C/N (b) N/C (c) CO2/O2 (d) O2/CO2.

Description : R.Q. is (a) C/N (b) N/C (c) CO2/O2 (d) O2/CO2.

Last Answer : (c) CO2/O2

R.Q. is ratio of (a) CO2 produced to substrate consumed (b) CO2 produced to O2 consumed (c) oxygen consumed to water produced (d) oxygen consumed to CO2 produced

Description : R.Q. is ratio of (a) CO2 produced to substrate consumed (b) CO2 produced to O2 consumed (c) oxygen consumed to water produced (d) oxygen consumed to CO2 produced

Last Answer : b) CO2 produced to O2 consumed

The end product of fermentation are (a) O2 and C2H5OH (b) CO2 and acetaldehyde (c) CO2 and O2 (d) CO2 and C2H5OH.

Description : The end product of fermentation are (a) O2 and C2H5OH (b) CO2 and acetaldehyde (c) CO2 and O2 (d) CO2 and C2H5OH.

Last Answer : d) CO2 and C2H5OH.

In Orsat's apparatus, ammoniacal cuprous chloride is used for selectivity absorbing (A) CO (B) CO2 (C) O2 (D) H2O

Description : In Orsat's apparatus, ammoniacal cuprous chloride is used for selectivity absorbing (A) CO (B) CO2 (C) O2 (D) H2O

Last Answer : (A) CO

The combustion reaction, C + O2 = CO2 , is (A) Exothermic (B) Endothermic (C) Autocatalytic

Description : The combustion reaction, C + O2 = CO2 , is (A) Exothermic (B) Endothermic (C) Autocatalytic

Last Answer : (A) Exothermic

Incomplete combustion of fuel in the furnace is judged by high __________ of the flue gases. (A) CO content (B) Dew point (C) CO2 content (D) O2 content

Description : Incomplete combustion of fuel in the furnace is judged by high __________ of the flue gases. (A) CO content (B) Dew point (C) CO2 content (D) O2 content

Last Answer : (A) CO content

The sequence of absorption in flue gas analysis by Orsat's apparatus is respectively (A) CO2 , O2 , CO (B) CO, O2 , CO2 (C) CO2 , CO, O2

Description : The sequence of absorption in flue gas analysis by Orsat's apparatus is respectively (A) CO2 , O2 , CO (B) CO, O2 , CO2 (C) CO2 , CO, O2

Last Answer : (A) CO2 , O2 , CO

When incomplete combustion loss is high, the flue gas analysis shows large amount of (A) CO2 (B) CO (C) O2 (D) C

Description : When incomplete combustion loss is high, the flue gas analysis shows large amount of (A) CO2 (B) CO (C) O2 (D) C

Last Answer : (B) CO

If CO2 is not fully absorbed by the KOH solution meant for its absorption in the orsat apparatus, it will appear as (A) O2 (B) CO (C) N2 (D) SO2

Description : If CO2 is not fully absorbed by the KOH solution meant for its absorption in the orsat apparatus, it will appear as (A) O2 (B) CO (C) N2 (D) SO2

Last Answer : (D) SO2

A sample of natural gas containing 80% methane (CH4 ) and rest nitrogen (N2 ) is burnt with 20% excess air. With 80% of the combustibles producing CO2 and the remainder going to CO, the Orsat analysis in volume percent is (A) CO2 : 6.26, CO : 1.56, O2 : 3.91, H2O :15.66, N2 : 72.60 (B) CO2 : 7.42, CO : 1.86, O2 : 4.64, N2 :86.02 (C) CO2 : 6.39, CO : 1.60, O2 : 3.99, H2O:25.96, N2 :72.06 (D) CO2 : 7.60, CO : 1.90, O2 : 4.75, N2 : 85.74

Description : A sample of natural gas containing 80% methane (CH4 ) and rest nitrogen (N2 ) is burnt with 20% excess air. With 80% of the combustibles producing CO2 and the remainder going to CO, the Orsat analysis in volume percent is (A) CO2 : 6 ... 96, N2 :72.06 (D) CO2 : 7.60, CO : 1.90, O2 : 4.75, N2 : 85.74

Last Answer : (B) CO2 : 7.42, CO : 1.86, O2 : 4.64, N2 :86.02

The pyrogallol solution used in Orsat apparatus can absorb (A) Only O2 (B) Both O2 and CO2 (C) Both O2 and CO (D) All CO, CO2 , and O2

Description : The pyrogallol solution used in Orsat apparatus can absorb (A) Only O2 (B) Both O2 and CO2 (C) Both O2 and CO (D) All CO, CO2 , and O2

Last Answer : (B) Both O2 and CO2