Oxygen during photosynthesis comes from water was proved by `O^(18)` experiment

Oxygen during photosynthesis comes from water was proved by `O^(18)` experiment
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Oxygen during photosynthesis comes from water was proved by `O^(18)` experiment A. Ruben and Kamen B. Hill C. Warburg D. Blackman
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The oxygen evolved during photosynthesis comes from water molecules . Which one of the following pairs of elemnets is involved in this reaction ?

Description : The oxygen evolved during photosynthesis comes from water molecules . Which one of the following pairs of elemnets is involved in this reaction ?

Last Answer : The oxygen evolved during photosynthesis comes from water molecules . Which one of the ... Manganese and Potassium D. Magnesium and Molybdenum

The oxygen evolved during photosynthesis, comes from water molecules. Which one of the following pairs of elements is involved in this reaction?(a) Magnesium and Molybdenum (b) Magnesium and Chlorine (c) Manganese and Chlorine (d) Manganese and Potassium

Description : The oxygen evolved during photosynthesis, comes from water molecules. Which one of the following pairs of elements is involved in this reaction? (a) Magnesium and Molybdenum (b) Magnesium and Chlorine (c) Manganese and Chlorine (d) Manganese and Potassium

Last Answer : (c) Manganese and Chlorine

The oxygen liberated during photosynthesis comes from (1) Water (2) Carbon dioxide (3) Glucose (4) Chlorophyll

Description : The oxygen liberated during photosynthesis comes from (1) Water (2) Carbon dioxide (3) Glucose (4) Chlorophyll

Last Answer : Water

Oxygen liberated during photosynthesis comes from

Description : Oxygen liberated during photosynthesis comes from

Last Answer : Oxygen liberated during photosynthesis comes from A. Water B. `Co_(2)` C. Soil D. Atmosphere

Oxygen liberated during photosynthesis comes from

Description : Oxygen liberated during photosynthesis comes from

Last Answer : Oxygen liberated during photosynthesis comes from A. `CO_(2)` B. `H_(2)O` C. Phosphoglyceric D. Chlorophyll

Swan neck flask experiment proved :

Description : Swan neck flask experiment proved :

Last Answer : Swan neck flask experiment proved : A. biogenesis B. abiogenesis C. special creation D. both (1) and (2)

Rutherford's scattering experiment proved the presence of – (1) atoms in all matter (2) electrons in atoms (3) neutrons in atoms (4) nucleus in atoms

Description : Rutherford's scattering experiment proved the presence of – (1) atoms in all matter (2) electrons in atoms (3) neutrons in atoms (4) nucleus in atoms

Last Answer : (4) nucleus in atoms Explanation: On the basis of his experiment, Rutherford put forward the model of an atom, which had the following features: There is a positively charged centre in an atom called the nucleus.

Rutherford’s scattering experiment proved the presence of - (1) atoms in all matter (2) electrons in atoms (3) neutrons in atoms (4) nucleusin atoms

Description : Rutherford’s scattering experiment proved the presence of - (1) atoms in all matter (2) electrons in atoms (3) neutrons in atoms (4) nucleusin atoms

Last Answer : (4) nucleusin atoms Explanation: Ernest Rutherford and his fellows Geiger and Marsden proved between 1911 and 1913 the existence of the atomic nucleus. This scattering experirnent led to the development of the Rutherford model (planetary model) of the atom, and eventually to the Bohr model.

Who proved the Abiogenesis wrong and when? OR Write a note on Redi Experiment?

Description : Who proved the Abiogenesis wrong and when? OR Write a note on Redi Experiment?  

Last Answer : In 1668, an Italian scientist F. Redi performed experiments to disprove the abiogenesis. Redi's Experiment: i) He took two sets of four bottles each. ii) In first set, he put dead snakes ... are responsible. viii) He stated that maggots were the larvae, produced from the eggs of visited flies. 

Rutherford’s scattering experiment proved the presence of (1) atoms in all matter (2) electrons in atoms (3) neutrons in atoms (4) nucleus in atoms

Description : Rutherford’s scattering experiment proved the presence of (1) atoms in all matter (2) electrons in atoms (3) neutrons in atoms (4) nucleus in atoms

Last Answer : nucleus in atoms

Oxygen which is vital for life is a product of photosynthesis and comes from – (1) carbonates from soil (2) carbon dioxide (3) water (4) oxides of mineral elements

Description : Oxygen which is vital for life is a product of photosynthesis and comes from – (1) carbonates from soil (2) carbon dioxide (3) water (4) oxides of mineral elements

Last Answer : (3) water Explanation: The unusually high concentration of oxygen has on Earth is the result of the oxygen cycle. This biogeochemical cycle describes the movement of oxygen within and ... Photosynthesis releases oxygen into the atmosphere, while respiration and decay remove it from the atmosphere.

Oxygen which is vital for life is a product of photosynthesis and comes from (1) carbonates from soil (2) carbon dioxide (3) water (4) oxides of mineral elements

Description : Oxygen which is vital for life is a product of photosynthesis and comes from (1) carbonates from soil (2) carbon dioxide (3) water (4) oxides of mineral elements

Last Answer : water

Oxygen required for photosynthesis comes from

Description : Oxygen required for photosynthesis comes from

Last Answer : Ans. Water

Moll’s experiment explains that (a) Carbon dioxide is essential for photosynthesis (b) Chlorophyll and water are necessary for photosynthesis (c) Light and water are essential for photosynthesis (d) All of the above are correct

Description : Moll’s experiment explains that (a) Carbon dioxide is essential for photosynthesis (b) Chlorophyll and water are necessary for photosynthesis (c) Light and water are essential for photosynthesis (d) All of the above are correct

Last Answer : Ans. ((a))

18. “Increased diversity contributed to higher productivity” –was experimentally proved by ... a) David Tilman b) Paul Ehrlich c) Alexander Von Humbolt d) Robert May

Description : 18. “Increased diversity contributed to higher productivity” –was experimentally proved by ... a) David Tilman b) Paul Ehrlich c) Alexander Von Humbolt d) Robert May

Last Answer : a) David Tilman

In a paper on photosynthesis in a desert cactus in which section would you find a review of existing knowledge that is relevant to the experiment A.Introduction?

Description : In a paper on photosynthesis in a desert cactus in which section would you find a review of existing knowledge that is relevant to the experiment A.Introduction?

Last Answer : Feel Free to Answer

Prove with the help of experiment that Carbon dioxide is necessary for photosynthesis?

Description : Prove with the help of experiment that Carbon dioxide is necessary for photosynthesis? 

Last Answer : i) Take a de-starch potted plant. ii) Put some potassium hydroxide in flask and put a cork on its mouth. iii) Place the plant in light for photosynthesis. iv) Select a leaf of plant ... flask stored all of the Carbon dioxide and due to absence of carbon dioxide no photosynthesis takes place. 

Prove with experiment that chlorophyll is necessary for photosynthesis?

Description : Prove with experiment that chlorophyll is necessary for photosynthesis? 

Last Answer : i) De-starch a leaf of potted plant by wrapping it in aluminum foil. ii) Remove the leaf from plant. iii) Its outline is carefully drawn to note the position of chlorophyll. iv) ... vii) If photosynthesis is possible without chlorophyll than white part should also turn blue. 

Prove with experiment that light is necessary for photosynthesis?

Description : Prove with experiment that light is necessary for photosynthesis? 

Last Answer : i) De-starch a potted plant by keeping it in dark for two days. ii) Then transfer it to light and select two leaves of this plant for experiment iii) Now wrap one by black paper. ... blue while other part remain brown. viii) This shows that light is necessary for photosynthesis. 

Who proved that trees give up oxygen ?

Last Answer : : Joseph Priestley proved that trees give up oxygen

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 gas comes out during photosynthesis?

Description : Which gas comes out during photosynthesis?

Last Answer : Oxygen

During photosynthesis a plant uses energy from the sun to break apart glucose water and carbon dioxide. These molecules are used to make sugar to feed the plant and the plant then releases a by-product oxygen that humans breathe. this example shows that?

Description : During photosynthesis a plant uses energy from the sun to break apart glucose water and carbon dioxide. These molecules are used to make sugar to feed the plant and the plant then releases a by-product oxygen that humans breathe. this example shows that?

Last Answer : energy is not created but transferred to different forms (apex gang ;)

Algae often float on surface of water during the day but sink down during the night due to (a) Evolution and trapping of oxygen bubbles during the day in their photosynthesis (b) Becoming light as they consume most of their food in the night (c) Warming action of sun during the day (d) Release of absorbed air by warming of water

Description : Algae often float on surface of water during the day but sink down during the night due to (a) Evolution and trapping of oxygen bubbles during the day in their photosynthesis (b) Becoming light as they ... (c) Warming action of sun during the day (d) Release of absorbed air by warming of water

Last Answer : Ans:(a)

The liberation of oxygen during photosynthesis is due to - (1) hydrolysis of carbohydrates (2) photolysis of water (3) reduction of CO2 (4) breakdown of chlorophyll

Description : The liberation of oxygen during photosynthesis is due to - (1) hydrolysis of carbohydrates (2) photolysis of water (3) reduction of CO2 (4) breakdown of chlorophyll

Last Answer : (2) photolysis of water Explanation: In the process of photosynthesis, oxygen is produced from the photolysis of water. The photolysis of water occurs when light is used to renew split water and ... , also referred to as ATP. The hydrogen remains in the leaf and participates in further reactions.

Oxygen liberated during photosynthesis is coming from : (1) Carbon dioxide (2) Water (3) Bresk down of chlorophy II (4) Atmosphere

Description : Oxygen liberated during photosynthesis is coming from : (1) Carbon dioxide (2) Water (3) Bresk down of chlorophy II (4) Atmosphere

Last Answer : (2) Water Explanation: Oxygen liberated during photosynthesis is coming m6t.o create a stable, unstirred layer to support surface neutralization of acid and act as a protective physical barrier against luminal pepsin.

The source of oxygen generated during photosynthesis is: (1) water (2) carbon dioxide (3) chlorophyll (4) mesophyll cells

Description : The source of oxygen generated during photosynthesis is: (1) water (2) carbon dioxide (3) chlorophyll (4) mesophyll cells

Last Answer : (1) water Explanation: The source of oxygen produced during photosynthesis is the splitting of water molecule into hydrogen and oxygen. Photosynthesis uses carbon dioxide and water, releasing ... inside organelles called chloroplasts, while in bacteria they are embedded in the plasma membrane.

Molecular oxygen formed during plant photosynthesis is derived exclusively from: a) CO2 b) Water c) carbohydrates d) none of the above

Description : Molecular oxygen formed during plant photosynthesis is derived exclusively from: a) CO2 b) Water c) carbohydrates d) none of the above

Last Answer : ANSWER: B -- WATER

The liberation of oxygen during photosynthesis is due to (1) hydrolysis of carbohydrates (2) photolysis of water (3) reduction of CO2 (4) breakdown of chlorophyll

Description : The liberation of oxygen during photosynthesis is due to (1) hydrolysis of carbohydrates (2) photolysis of water (3) reduction of CO2 (4) breakdown of chlorophyll

Last Answer : photolysis of water

The source of oxygen generated during photosynthesis is : (1) water (2) carbon dioxide (3) chlorophyll (4) mesophyll cells

Description : The source of oxygen generated during photosynthesis is : (1) water (2) carbon dioxide (3) chlorophyll (4) mesophyll cells

Last Answer : water

Oxygen liberated during photosynthesis is coming from : (1) Carbon dioxide (2) Water (3) Bresk down of chlorophy II (4) Atmosphere

Description : Oxygen liberated during photosynthesis is coming from : (1) Carbon dioxide (2) Water (3) Bresk down of chlorophy II (4) Atmosphere

Last Answer : Water

If a plant is releasing carbon dioxide and taking in oxygen during the day, does it mean that there is no photosynthesis occurring ? Justify your answer. -Science

Description : If a plant is releasing carbon dioxide and taking in oxygen during the day, does it mean that there is no photosynthesis occurring ? Justify your answer. -Science

Last Answer : When photosynthesis occurs during the day, the carbon dioxide released by plants by respiration is all used up and not released. Similarly, some of the oxygen produced during photosynthesis is used up in ... and taking in oxygen even during the day, it means that no photosynthesis is taking place.

Which one of the following categories of organisms do not evolve oxygen during Photosynthesis

Description : Which one of the following categories of organisms do not evolve oxygen during Photosynthesis

Last Answer : Which one of the following categories of organisms do not evolve oxygen during Photosynthesis A. Red ... plants with Kranz anatomy D. Blue green algae

The source of oxygen evolved during photosynthesis is

Description : The source of oxygen evolved during photosynthesis is

Last Answer : The source of oxygen evolved during photosynthesis is A. `H_(2)S` B. `H_(2)O` C. `CO_(2)` D. `HCO_(3)`

Which one of the following categories of organisms do not evolve oxygen during Photosynthesis

Description : Which one of the following categories of organisms do not evolve oxygen during Photosynthesis

Last Answer : Which one of the following categories of organisms do not evolve oxygen during ... Photosynthetic green algae D. Photosynthetic bacteria

The gas released during photosynthesis : (1) Carbon dioxide (2) Oxygen (3) Carbon monoxide (4) Sulphur dioxide

Description : The gas released during photosynthesis : (1) Carbon dioxide (2) Oxygen (3) Carbon monoxide (4) Sulphur dioxide

Last Answer : (2) Oxygen Explanation: In plants, algae, and cyanobacteria, photosynthesis uses carbon dioxide and water, releasing oxygen as a waste product. Photosynthesis is vital for all aerobic life on Earth. In ... this process is: Carbon dioxide + Water + Light energy --> Carbohydrate + Oxygen + Water

During photosynthesis in plants, the gas evolved is - (1) Carbon dioxide (2) Nitrogen (3) Oxygen (4) Hydrogen

Description : During photosynthesis in plants, the gas evolved is - (1) Carbon dioxide (2) Nitrogen (3) Oxygen (4) Hydrogen

Last Answer : (3) Oxygen Explanation: Photosynthesis is a process used by plants and other organisms to convert the light energy captured from the sun into chemical energy that can be used to fuel the organism ... , through primary production, or indirectly, as the ultimate source of the energy in their food.

During photosynthesis the liberated gas is (1) Carbon dioxide (2) oxygen (3) Nitrogen (4) Hydrogen

Description : During photosynthesis the liberated gas is (1) Carbon dioxide (2) oxygen (3) Nitrogen (4) Hydrogen

Last Answer : (2) oxygen Explanation: Photosynthesis is a process used by plants and other organisms to convert the light energy captured from the sun into chemical energy that can be used to fuel the organism ... water, releasing oxygen as a waste product.' Photosynthesis is vital for all aerobic life on Earth.

Which of the following gases do plants and trees give out during photosynthesis? A. Hydrogen B. Nitrogen C. Oxygen (Answer) D. Carbon dioxide

Description : Which of the following gases do plants and trees give out during photosynthesis? A. Hydrogen B. Nitrogen C. Oxygen (Answer) D. Carbon dioxide

Last Answer : C. Oxygen (Answer)

How can you prove that oxygen is released during photosynthesis?

Description : How can you prove that oxygen is released during photosynthesis? 

Last Answer : Experiment: - i) Place a funnel over the shoot of hydra(water plant) in a beaker of water. ii) Invert a test tube filled with water over funnel. iii) Place funnel such that water can ... show that tube is rich with oxygen. viii) So it is proved that oxygen is released during photosynthesis. 

Which of the following is correct about the photorespiration? a. Photorespiration is more efficient in synthesizing glucose than photosynthesis. b. C3 plants are best adapted to handle c. Photorespiration is likely to occur when oxygen level is high and CO2 level is d. During photorespiration plants use oxygen to break down carbohydrates and release e. All of these

Description : Which of the following is correct about the photorespiration? a. Photorespiration is more efficient in synthesizing glucose than photosynthesis. b. C3 plants are best adapted to handle c. ... During photorespiration plants use oxygen to break down carbohydrates and release e. All of these

Last Answer : c. Photorespiration is likely to occur when oxygen level is high and CO2 level is

Oxygen is not produced during photosynthesis by (a) Green sulphur bacteria (b) Nostoc (c) Cycas (d) Chara.

Description : Oxygen is not produced during photosynthesis by (a) Green sulphur bacteria (b) Nostoc (c) Cycas (d) Chara.

Last Answer : (a) Green sulphur bacteria

Oxygen is not produced during photosynthesis by (1) Green sulphur bacteria (2) Nostoc (3) Cycas (4) Chara

Description : Oxygen is not produced during photosynthesis by (1) Green sulphur bacteria (2) Nostoc (3) Cycas (4) Chara

Last Answer : (1) Green sulphur bacteria

The gas released during photosynthesis : (1) Carbon dioxide (2) Oxygen (3) Carbon monoxide (4) Sulphur dioxide

Description : The gas released during photosynthesis : (1) Carbon dioxide (2) Oxygen (3) Carbon monoxide (4) Sulphur dioxide

Last Answer : Oxygen

During photosynthesis green plants absorb (1) nitrogen (2) carbon dioxide (3) carbon monoxide (4) oxygen

Description : During photosynthesis green plants absorb (1) nitrogen (2) carbon dioxide (3) carbon monoxide (4) oxygen

Last Answer : carbon dioxide

During photosynthesis in plants, the gas evolved is (1) Carbon dioxide (2) Nitrogen (3) Oxygen (4) Hydrogen

Description : During photosynthesis in plants, the gas evolved is (1) Carbon dioxide (2) Nitrogen (3) Oxygen (4) Hydrogen

Last Answer : Oxygen

During photosynthesis the liberated gas is : (1) Carbon dioxide (2) Oxygen (3) Nitrogen (4) Hydrogen

Description : During photosynthesis the liberated gas is : (1) Carbon dioxide (2) Oxygen (3) Nitrogen (4) Hydrogen

Last Answer : Oxygen

Which is the evidence to shoe that `O_(2)` is released in photosynthesis comes from water

Description : Which is the evidence to shoe that `O_(2)` is released in photosynthesis comes from water

Last Answer : Which is the evidence to shoe that `O_(2)` is released in photosynthesis comes from water A. Isotopic oxygen ... (2)O`and sulphur. D. All of the above

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)