Why is chlorophyll removed from the leaf before testing for starch?

Why is chlorophyll removed from the leaf before testing for starch?
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Why do we boil the leaf in alcohol when we are testing it for starch ? -Science

Description : Why do we boil the leaf in alcohol when we are testing it for starch ? -Science

Last Answer : We boil the leaf in Alcohol to remove all its green pigment called chlorophyll.

For testing the presence of starch in leaves, a boiled leaf is used. Why? -Science-7

Description : For testing the presence of starch in leaves, a boiled leaf is used. Why? -Science-7

Last Answer : When we boil leaf in alcohol, chlorophyll dissolves in warm alcohol. The leaf thus loses its green pigment and becomes colourless. This helps to clearly see any colour change on addition of Iodine.

Why is alcohol used on a green leaf to test for starch?

Description : Why is alcohol used on a green leaf to test for starch?

Last Answer : Alcohol is used on green leaf to test starch because removal of chlorophyll from leaf is done by boiling of alcohol .

Moisture can be removed from lubricating oil using (A) Tubular centrifuge (B) Clarifier (C) Sparkler filter (D) Vacuum leaf filter

Description : Moisture can be removed from lubricating oil using (A) Tubular centrifuge (B) Clarifier (C) Sparkler filter (D) Vacuum leaf filter

Last Answer : (A) Tubular centrifuge

In testing a pile by load test, pile platform is loaded with one and half times the design load and a maximum settlement is noted. The load is gradually removed and the consequent rebound is measured. For a safe pile, the net settlement (i.e. total settlement minus rebound) per tonne of test load should not exceed (A) 10 mm (B) 15 mm (C) 20 mm (D) 25 mm

Description : In testing a pile by load test, pile platform is loaded with one and half times the design load and a maximum settlement is noted. The load is gradually removed and the consequent rebound is measured. For a safe pile, the net ... load should not exceed (A) 10 mm (B) 15 mm (C) 20 mm (D) 25 mm

Last Answer : Answer: Option D

For the ladies: After you had Mirena removed, how long before your cycle started?

Description : For the ladies: After you had Mirena removed, how long before your cycle started?

Last Answer : I don’t understand what you mean by “your cycle started.” Your cycle is not interrupted with Mirena. If you mean menstruation, some women have it on Mirena and some don’t.

Hypothetical Question... If your comment gets removed, but you've received a number of great answer tags before removal, should you get to keep the great answer scores even thought the comment got pulled?

Description : Hypothetical Question... If your comment gets removed, but you've received a number of great answer tags before removal, should you get to keep the great answer scores even thought the comment got pulled?

Last Answer : You do keep lurve points received from removed quips or censored questions. Your lurve number won’t go down if something you say is moderated.

Why does jewellery have to be removed before an xray?

Description : Why does jewellery have to be removed before an xray?

Last Answer : Apart from hiding potential internal damage, I can think of no other reason.

What are the brown spots on rhubarb stems and should they be removed before using the rhyubarb?

Description : What are the brown spots on rhubarb stems and should they be removed before using the rhyubarb?

Last Answer : as long as there are no holes in it, I have notice different color on that plant. a lot of people in Pa mix that with strawberries and cook it for pie.

How should I save bulbs that must be removed from a area before the end of the growing season?

Description : How should I save bulbs that must be removed from a area before the end of the growing season?

Last Answer : depending on the bulbs digging them out and putting them in a sand mixture in a dry basement in a pail,cooler, etc.

i. A director can be removed before the expiry of his term. ii. Directors act as trustees of the company.

Description : i. A director can be removed before the expiry of his term. ii. Directors act as trustees of the company.

Last Answer : State whether the following statements are True or False: i. A director can be removed ... meetings. vi. Director can take decisions individually.

Do I have to notify the city or county before I have a tree removed?

Description : Do I have to notify the city or county before I have a tree removed?

Last Answer : It is unlikely that you would need permission to take down a tree on your private property. However, to be sure, check with the authorities in your city/county. Different municipalities set their ... regarding permits, etc. You certainly want assistance if any power lines are involved in the tree.

Introns in genes (A) Encode the amino acids which are removed during post-translational modification (B) Encode signal sequences which are removed before secretion of the proteins (C) Are the non-coding sequences which are not translated (D) Are the sequences that intervene between two genes

Description : Introns in genes (A) Encode the amino acids which are removed during post-translational modification (B) Encode signal sequences which are removed before secretion of the proteins (C) Are the non-coding sequences which are not translated (D) Are the sequences that intervene between two genes

Last Answer : Answer : C

Which of the following actions must be carried out before a voltage tester can be used to test the three line fuses to a three-phase motor? A. The fuses must be removed from the circuit. B. The starter must be placed in the STOP position to stop the motor. C. The three line connections in the motor terminal box must be disconnected and tagged. D. Nothing need be done as long as the motor is running under a light load.

Description : Which of the following actions must be carried out before a voltage tester can be used to test the three line fuses to a three-phase motor? A. The fuses must be removed from the circuit. B. The ... disconnected and tagged. D. Nothing need be done as long as the motor is running under a light load.

Last Answer : Answer: B

How is carbon dioxide removed from blood before it is exhaled?

Description : How is carbon dioxide removed from blood before it is exhaled?

Last Answer : In humans, carbon dioxide is generated in the tissues during oxidation of glucose, in order to liberate energy, which is resumed to perform body functions. Before exhalation through lungs the gas is transported ... than the tissue capillaries. Nearly 23 per cent of CO{-2} is transported this way.

Coal mines drainage waste water (acidic in nature) results from the earth's water percolating through the voids created in coal bed during mining. This polluted water which either drains out naturally to water courses or are removed before starting the mining is (A) Neutralised by alkali treatment (B) Left as such without any treatment (C) Diluted with fresh water to reduce its acidity (D) None of these

Description : Coal mines drainage waste water (acidic in nature) results from the earth's water percolating through the voids created in coal bed during mining. This polluted water which either drains out naturally to ... without any treatment (C) Diluted with fresh water to reduce its acidity (D) None of these

Last Answer : (A) Neutralised by alkali treatment

Which one of the following statements is true? a. Plasmids are circular molecules of RNA. b. RNA replicates by a conservative method of replication. c. Deletions or insertions of a nucleotide in a gene will cause a reading frameshift during translation. d. Okazaki fragments are removed from a RNA before translation occurs.

Description : Which one of the following statements is true? a. Plasmids are circular molecules of RNA. b. RNA replicates by a conservative method of replication. c. Deletions or insertions of a ... reading frameshift during translation. d. Okazaki fragments are removed from a RNA before translation occurs.

Last Answer : c. Deletions or insertions of a nucleotide in a gene will cause a reading frameshift during translation.

Temporary staging for casting PSC Box Girder for a ROB over the Railway span shall be removed a) after hardening of concrete b) before hardening of concrete c) during concreting d) after stressing the cables

Description : Temporary staging for casting PSC Box Girder for a ROB over the Railway span shall be removed a) after hardening of concrete b) before hardening of concrete c) during concreting d) after stressing the cables

Last Answer : d) after stressing the cables

Two taps P and Q can fill a cistern in 24 min and 32 min respectively. Both the taps are opened together for a certain time but due to some obstruction the flow of water was restricted to 7/4 of full flow in tap P and 5/3 of full in tap Q. This obstruction is removed after some time and cistern is now filled in 6min from that moment. How long was it before the full flow. A) 8 min B) 3 min C) 5.6 min D) 4.5 min

Description : Two taps P and Q can fill a cistern in 24 min and 32 min respectively. Both the taps are opened together for a certain time but due to some obstruction the flow of water was restricted to 7/4 of full flow in tap P and ... How long was it before the full flow. A) 8 min B) 3 min C) 5.6 min D) 4.5 min

Last Answer : D Let the obstruction remain for X min.  Hence, Part of cistern filled in X min + part of cistern filled in 6 min = full cistern [(7X/4*24)+(5X/3*32)]+[(6/24)+(6/32)] = 1 (12X/96)+(7/16) = 1 12x/96=9/16 Thus, X = 4.5 min.

What does chlorophyll do for homemade deodorant?

Description : What does chlorophyll do for homemade deodorant?

Last Answer : It would turn it green. It is used as colourant in foods.

The autotrophic mode of nutrition requires (i) carbon dioxide and water (ii) chlorophyll (iii) sunlight (iv) all of the above -Biology

Description : The autotrophic mode of nutrition requires (i) carbon dioxide and water (ii) chlorophyll (iii) sunlight (iv) all of the above -Biology

Last Answer : Autotrophic nutrition is the mode of nutrition in which green plants prepare their own food by the process of photosynthesis. It requires carbon dioxide, water, sunlight and chlorophyll. Hence, option (iv) is correct.

Apart from sunlight and chlorophyll, what other things are required to make food by photosynthesis ? -Science

Description : Apart from sunlight and chlorophyll, what other things are required to make food by photosynthesis ? -Science

Last Answer : Carbon dioxide and water.

Name the central element present in chlorophyll. -Biology

Description : Name the central element present in chlorophyll. -Biology

Last Answer : answer:

Chlorophyll termed as universal photosynthetic pigment is? -Biology

Description : Chlorophyll termed as universal photosynthetic pigment is? -Biology

Last Answer : answer:

The type of chlorophyll absent in prokaryote is? -Biology

Description : The type of chlorophyll absent in prokaryote is? -Biology

Last Answer : answer:

Chlorophyll traps what from the sun? -Biology

Description : Chlorophyll traps what from the sun? -Biology

Last Answer : answer:

Chlorophyll traps what from the sun? -Biology

Description : Chlorophyll traps what from the sun? -Biology

Last Answer : answer:

Chlorophyll is a naturally occuring chelate compound in, what is the which the central metal in this? -General Knowledge

Description : Chlorophyll is a naturally occuring chelate compound in, what is the which the central metal in this? -General Knowledge

Last Answer : answer:

When chlorophyll absorbs light, what does it gets excited and emits? -Do You Know?

Description : When chlorophyll absorbs light, what does it gets excited and emits? -Do You Know?

Last Answer : answer:

Chlorophyll is a naturally occuring chelate compound in, what is the which the central metal in this? -General Knowledge

Description : Chlorophyll is a naturally occuring chelate compound in, what is the which the central metal in this? -General Knowledge

Last Answer : answer:

What is the mineral component of chlorophyll? -General Knowledge

Description : What is the mineral component of chlorophyll? -General Knowledge

Last Answer : answer:

The function of chlorophyll is to?

Description : The function of chlorophyll is to?

Last Answer : Chlorophyll is vital for photosynthesis, which allows plants to absorb energy from light. Chlorophyll molecules are arranged in and around photosystems that are embedded in the thylakoid membranes of chloroplasts.

which part of a cell contains chlorophyll?

Description : which part of a cell contains chlorophyll?

Last Answer : if your tite + puke = baby's or kambal

Which waves of chlorophyll are absorbed by the sun ?

Description : Which waves of chlorophyll are absorbed by the sun ?

Last Answer : : Chlorophyll absorbs the red and blue waves of the sun.

How do chlorophyll molecules store energy from sunlight ?

Description : How do chlorophyll molecules store energy from sunlight ?

Last Answer : : The chlorophyll molecule absorbs photons from the sun's rays and stores energy from the absorbed photons.

Lack of Chlorophyll Disruption ?

Description : Lack of Chlorophyll Disruption ?

Last Answer : Lack of nitrogen interferes with chlorophyll production.

What is Chlorophyll ?

Last Answer : Chlorophyll is the green particle of plants.

What ? Chlorophyll No ?

Last Answer : fungus And In bacteria Chlorophyll No.

Do variegated leaves contain chlorophyll?

Description : Do variegated leaves contain chlorophyll?

Last Answer : Variegated leaves are leaves that has green and non-green parts. The green parts of the leaves do contain chlorophyll, or the photosynthetic pigment used by plants during photosynthesis. Meanwhile, the non-green parts do not contain chlorophyll and therefore do not absorb sunlight.

Electrons from excited chlorophyll molecule of photosystem II are accepted first by

Description : Electrons from excited chlorophyll molecule of photosystem II are accepted first by

Last Answer : Electrons from excited chlorophyll molecule of photosystem II are accepted first by A. Quinone B. Ferredoxin C. Cytochrome-b D. Cytochrome-f

The first acceptor of electrons from an excited chlorophyll molecule of phtosystem II is

Description : The first acceptor of electrons from an excited chlorophyll molecule of phtosystem II is

Last Answer : The first acceptor of electrons from an excited chlorophyll molecule of phtosystem II is A. Quinone B. Cytochorme C. Iron-sulfur protein D. Ferredoxin

The first acceptor of electrons from an excited chlorophyll molecule of phtosystem II is

Description : The first acceptor of electrons from an excited chlorophyll molecule of phtosystem II is

Last Answer : The first acceptor of electrons from an excited chlorophyll molecule of phtosystem II is A. Quinone B. Cytochorme C. Iron-sulfur protein D. Ferredoxin

Chlorophyll occurs in chloroplast

Description : Chlorophyll occurs in chloroplast

Last Answer : Chlorophyll occurs in chloroplast A. Stroma B. Outer membrane C. Inner membrane D. Thylakoids

In chloroplasts the chlorophyll is located in

Description : In chloroplasts the chlorophyll is located in

Last Answer : In chloroplasts the chlorophyll is located in A. Grana B. Pyrenoid C. Stroma D. Both grana and stroma

The wavelength of light most absorbed by chlorophyll-a during photosynthesis is

Description : The wavelength of light most absorbed by chlorophyll-a during photosynthesis is

Last Answer : The wavelength of light most absorbed by chlorophyll-a during photosynthesis is A. 460 nm B. 500 nm C. 600 nm D. 660 nm

Chlorophyll has ______ in its center.

Description : Chlorophyll has ______ in its center.

Last Answer : Chlorophyll has ______ in its center. A. Iron B. Magnesium C. Copper D. Sulfur

The wavelength of light most absorbed by chlorophyll-a during photosynthesis is

Description : The wavelength of light most absorbed by chlorophyll-a during photosynthesis is

Last Answer : The wavelength of light most absorbed by chlorophyll-a during photosynthesis is A. 400 nm B. 550 nm C. 660 nm D. 700 nm

Which chlorophyll does not possess phytol

Description : Which chlorophyll does not possess phytol

Last Answer : Which chlorophyll does not possess phytol A. Chl a B. Chl b C. chl c D. chl d

Chlorophyll -c is found in

Description : Chlorophyll -c is found in

Last Answer : Chlorophyll -c is found in A. Brown algae a,c B. Red algae a,d C. Green algae a,b D. Green algae and Embryophyta

A quantasome consists of 230 chlorophyll molecules and acts as a photosyntheic unit. It was discovered by

Description : A quantasome consists of 230 chlorophyll molecules and acts as a photosyntheic unit. It was discovered by

Last Answer : A quantasome consists of 230 chlorophyll molecules and acts as a photosyntheic unit. It was discovered ... Slack C. Pelletier dn Caventou D. Blackman