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2 years ago

18. In replication of DNA, the helix is opened and what is unzipped?

Biology

1 answer:

aalyn [17]2 years ago

4 0

Answer:

B) Hydrogen Bond

Explanation:

Those are the bonds that the restrictive enzymes unzip and the bonds that hold the complementary bases.

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Outline three examples of cycles of inorganic nutrients. For each, outline the uses of the nutrients in living organisms, its me

Serggg [28]

The three examples of cycles of inorganic nutrients are Nitrogen, carbon and sulphur cycle.

Nitrogen is required to make amino acids and DNA in organisms. Carbon is the main component of glucose through which organism make energy, about 18 per-cent of the human body comprises carbon. Sulphur is an important constituent of some proteins, amino acids and enzyme cofactors.

Explanation:

The biogeochemical cycles like the nitrogen cycle are responsible for converting nitrogen into many chemical forms as nitrates, nitrites, ammonia. This process involves degrade decomposing animal and plant matter and naturally cleaning the environment also nitrites and nitrates become biofertilizers. The plants take nitrogen through their roots and in turn primary consumer in food chain ie. organisms consume the plant and eventually releases nitrogen as a waste material, dead and decaying body to the soil and cycle goes on.

In the carbon cycle the carbon is exchanged from the atmosphere to the organisms and then again to the environment. Plants perform photosynthesis by using carbon dioxide, primary consumer eats it and gets nutrition to perform cellular respiration, in turn, gets energy which gets dissipated and stored as biomass eventually in the course consumer die and replenish the soil with carbon. The Carbon emitted will keep cycling through air, water and soil.

The sulphur cycle involves the movement of sulphur between rocks, water and living beings and plants. Plants ( producers) absorb sulphur dissolved in water and animal consume these plants to replenish their sulphur requirement. And when organism die, sulphur enter the cycle again.

There will be a transfer of these inorganic nutrients to the trophic level in food chain.

3 0

2 years ago

Count up the number of atoms on each side of the equation below and write this in the chart.

ivann1987 [24]

Answer:

The equation to this question is unclear. The clear equation is:

CH4 + 2O2 → CO2 + 2H2O

Please find the number of atoms of each element on the reactant and product side below.

Explanation:

An atom is the smallest indivisible part of an element. The atom retains the chemical properties of the chemical element. In order to ensure that a chemical reaction between molecules and compounds is BALANCED, the number of atoms of each element that makes up the molecule/compound must be the same on both the reactants and products side.

In this case, the chemical reaction involves:

CH4 + 2O2 → CO2 + 2H2O

1. Carbon atom (C):

Reactants side = 1 atom

Products side = 1 atom

2. Oxygen atom (O):

Reactants side = 4 atoms

Products side = 4 atoms

3. Hydrogen atom (H):

Reactants side = 4 atoms

Products side = 4 atoms

4 0

2 years ago

I can rush, I can be still, I can be hot, I can be cold, I can be hard, I can slip

Kitty [74]

Water? That’s my guess I mean it kinda makes sense Imao

3 0

2 years ago

Match the following

Brilliant_brown [7]

Answer:

Matches according to the terms

Explanation:

1. Stratosphere: The layer of the atmosphere that the ozone layer is part of

2.Recycle: the process by which certain waste materials, such glass, aluminum, and paper are prepared for reuse

3. Hazardous: the type of solid, liquid, or gas wastes that are

toxic,flammable, corrosive, reactive, or radioactive

4. Biodegradable: The type of wastes that can be broken down by other organisms into a reusable form

5.Nicotine: The addictive drug found in tobacco

6. Cancer: A disease frequently developed by smokers and passive smokers.

7.Diabetes: A disease of the pancreas in which insulin is not produced in

The correct amounts so that glucose can be converted into

energy or stored as fat (insulin not given in the option)

8.Ozone: Organic compounds (VOCs), and nitrogen dioxide (NO) are

acted upon by sunlight

9.Plastic: When burned, it can cause an increase of CO2, ozone, and sulfur dioxide in the atmosphere

10. Fossil fuel: Sulfur dioxide,aluminium,

11.Ozone: formed in the atmosphere when chemicals, called volatile

7 0

2 years ago

Which structure is most necessary for a mitochondria to produce new molecules?

ollegr [7]

Answer: Nucleus!

Explanation:

The structure necessary for a mitochondria to produce new cells is the nucleus.

Hope this helped!! :D

5 0

2 years ago

Read 2 more answers