Give one example of each of the following:
(1) A water pollutant.
(2) An aquatic plant used in the lab to demonstate $O_{2}$ liberation during photosynthesis.
(3) An antibiotic.
(4) A nitrogenous base in DNA.

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Solution

1. Mercury is present in industrial waste which is dumped into the nearby water bodies.
2. Hydrilla is an aquatic plant used for demonstration of the liberation of O $_{2}$ during photosynthesis.
3. Streptomycin is an antibiotic obtained from Streptomyces griseus.
4. Guanine is the purine base of DNA.

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Similar questions

Q. Given one example of each of the following:
(1) A water pollutant
(2) An aquatic plant used in the lab to demonstrate

O_{2}

liberation during photosynthesis.
(3) An antibiotic.
(4) A nitrogenous base in DNA.

Q. Photosynthesis in an aquatic plant was measured by counting the number of

O_{2}

bubbles coming out ofthe cut end ofthe plant. What will happen to

O_{2}

production if you use a pipe to blow air from your mouth into water in the beaker?

Q. Write True (T) or False (F) against the following statements in the given brackets:
1. Plants need oxygen to prepare food during photosynthesis. ( )
2. Aquatic animals use dissolved oxygen from water. ( )
3. Moving air is called wind. ( )
4. Soil does not contain air. ( )
5. Atmosphere is essential for sustaining life on earth. ( )

Photosynthesis in an aquatic plant was measured by counting the number of $O_{2}$ bubbles coming out of the cut end of the plant. What will happen to $O_{2}$ production if you use a pipe blow air from your mouth into water in the beaker?

Q. To show that oxygen is produced during photosynthesis, aquatic plants like Hydrilla is used.

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Give one example of each of the following: (1) A water pollutant. (2) An aquatic plant used in the lab to demonstate O2 liberation during photosynthesis. (3) An antibiotic. (4) A nitrogenous base in DNA.

1. Mercury is present in industrial waste which is dumped into the nearby water bodies.2. Hydrilla is an aquatic plant used for demonstration of the liberation of O2 during photosynthesis.3. Streptomycin is an antibiotic obtained from Streptomyces griseus.4. Guanine is the purine base of DNA.

Give one example of each of the following:
(1) A water pollutant.
(2) An aquatic plant used in the lab to demonstate $O_{2}$ liberation during photosynthesis.
(3) An antibiotic.
(4) A nitrogenous base in DNA.