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satela [25.4K]
4 years ago
6

Compare and contrast the events of the light reaction with the events of the dark reaction?

Biology
2 answers:
valkas [14]4 years ago
8 0
Light reaction occurs in presence of light while in dark reaction light is not needed
Nadusha1986 [10]4 years ago
8 0

Answer:

Light and dark reaction are the two different phases of photosynthesis.

Photosynthesis is a process of formation of food in green plants and algae using carbon dioxide and water in the presence of sunlight.

Light reaction ( light dependent phase) occurs in the thylakoid membrane of chloroplast and is the first phase of photosynthesis.

During this phase,  chlorophyll ( a green pigment in the chloroplast) absorbs energy from sunlight and converts it into chemical energy in the form of ATP and NADPH. Photolysis of water takes place in this reaction that produces oxygen as a waste product in the surrounding.

Dark reaction occurs in the stroma. During the dark reaction ( light independent phase) , this chemical energy is used in the formation of carbohydrates ( glucose) as ATP provides energy for this process wheres NADPH is a reducing agent, which gives electrons that are need for CO2 fixation so as to form glucose molecule.

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Drag the tiles to the correct boxes to complete the pairs. Match the soil conservation technique to its explanation.
oksian1 [2.3K]

Answer:

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6 0
3 years ago
What happens in cellular respiration if there is no oxygen?
Alex
If there is no oxygen...many cells die....but some can perform cellular respiration without oxygen too.....they are anaerobic. they usually use organic substance to survive !!!

as acidophilic bacteria survive without oxygen in acids ...so !!!
6 0
3 years ago
An uncharged atom of calcium has an atomic number of 20 and an atomic mass of 43. How many electrons does calcium have?
xenn [34]

Answer:

Since it has no charge it would have 20 electrons .

8 0
3 years ago
Which bond is the strongest ion, hydrogen, or covalent
Black_prince [1.1K]

Answer:

Ion

Explanation:

Covalent bonds are stronger than hydrogen bonds. Ionic bonds are stronger than covalent bonds because of the coulombic attraction between ions of opposite charges.

4 0
3 years ago
The chart shows the total amount of nitrogen oxides (NOx) and sulfur dioxide (SO2) that coal-fired utilities emitted between 199
horsena [70]

Answer:

Yes.

Explanation:

If the graph line comes lowers from 1999 to 2013 so it means that steps taken by the EPA and the factories were effective in reducing air pollution. The steps taken by the EPA and the factories were effective in reducing air pollution occurs from two pollutants i. e nitrogen oxides (NOx) and sulfur dioxide (SO2) if they install chimneys which collect these gases and reduce pollution. if the factories uses coal having less concentration of sulphur so less air pollution occurs.

4 0
3 years ago
Read 2 more answers
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