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sesenic [268]
3 years ago
10

The Greeks studied charges using

Biology
1 answer:
natka813 [3]3 years ago
4 0
Amber, they used amber
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A) Fats provide 12 kcals of energy per gram.

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3 years ago
BIOLOGY HOMEWORK
bulgar [2K]

Answer: The only reaction performed by chloroplast through its chlorophyll is photosyntesis. Therefore the chemical formular is below.

   C02         +          H20           →                   C6H1206    +       O2+           H20.

(carbondioxide) +    (Water)     Chlorophyll      (glucose)  +(oxygen)+     (water)

                                                       and                                                                                            

                                                   enzymes .                    

This is the single reaction of the process of photosynthesis.However two interconnected reactions are involved light dependent stage and light independent stage.

The first reaction takes place in presence of sunlight, and it is called Photolysis of water.it is the spiting of water to H+, electrons and Oxygen. This is  the source of oxygen seen above.

             4 H20→ 4H+ + 4e- + 02.

The light independent stage; the hydrogen ion from the photolysis is transfer to the light independent stage to reduce the C02 to produce glucose.In the first equation seen above.

Since chloroplast performs photosynthesis through action of its chlorophyll, The above reaction describes the chemical formula.

B.

The cell wall  of plants is made up of the middle lamella, the primary cell wall and the secondary cell wall .

<u>Cellulose</u><u> a complex carbohydrate is the major components</u>. It contains,  monomers of  glucose in small units  linked to one another by bonds.

C

Vacuole helps in plant turgidity needed for uprightness. when filled with water provides  turgor pressure increases as the cell membrane pushes against the cell wall. The resulted turgidity  helps the plants  to maintain resistance to external pressure and therefore resist the effects of gravity.

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3 years ago
Which one of the following statements provides the best evidence that prokaryotic cells are less complex than eukaryotic cells?
Stolb23 [73]

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The answer is C

Explanation:

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Select the elements that are considered to have a high level of attraction for surrounding electrons:
kotegsom [21]

Answer:

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Explanation:

Oxygen and nitrogen are very electronegative than any other element in the periodic table hence they have more tendency to attract an electron towards itself

6 0
3 years ago
Together, sewage treatment and drinking water treatment are used to _____.
Svet_ta [14]
The answer is c because if you treat the sewage water than you that means that the water will be clean so it prevents diseases
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