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Neporo4naja [7]
3 years ago
15

Which of the following is a function of chloroplasts?

Biology
2 answers:
Shalnov [3]3 years ago
6 0
The answer is B. Chloroplasts absorb sunlight to enable a plant to make food. This is because these organelles contain special pigments like chlorophyll that enable them to absorb sunlight and its energy to be used later by the cell!
Hope this helped!
tigry1 [53]3 years ago
4 0

Answer:

B Makes food during photosynthesis

Explanation:

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How many grams of O2 are needed to completely react with 2 moles of N2 ? Enter your answer as a number (do not enter the units o
soldi70 [24.7K]

Answer:

64

Explanation:

Nitrogen combines directly with oxygen at very high temperatures to form nitrogen(ii) oxide. This is the reaction that occurs during lightning flashes. Atmospheric nitrogen and oxygen combines during the high temperatures obtained in lightning flashes to form nitrogen (ii) oxide.

Equation of the reaction is given below:

N(g) + O(g) ---> 2NO(g)

From the equation of the reaction, 1 mole of nitrogen gas combines with one mole of oxygen gas to produce 2 moles of nitrogen (ii) oxide.

Therefore, 2 moles of oxygen gas will react with 2 moles of nitrogen gas

Mass of oxygen gas that is 2 moles of the gas is obtained from the formula; mass = number of moles * molar mass

Molar mass of oxygen gas = 32.0 g/mol

Mass of 2 moles of oxygen gas = 2 * 32.0 = 56 g

Therefore, the mass of oxygen required in grams is 64

6 0
3 years ago
The atmosphere is 80% nitrogen: why do you think plants and animals can't use nitrogen as it is found in the atmosphere?
Setler [38]

Answer: Atmospheric Nitrogen is unreactive

Explanation:

The atmosphere is made up of about 80% Nitrogen, 16% oxygen, about 4% carbon dioxide, rare gases etc.

However, the 80% Nitrogen is highly unreactive, and needs to be trapped by competent micro organisms known as nitrogen-fixing bacteria in the root nodules of legumes.

Then, it is converted to several forms like nitrites, nitrates (easily absorbed by plants), ammonia and finally escape to the atmosphere again.

This brief illustration explains the NITROGEN CYCLE, and it is the only means by which plants and animals can use the highly unreactive nitrogen

3 0
3 years ago
Read 2 more answers
Why is evolution considered the unifying concept in biology?
Jobisdone [24]
The answer is E I believe
4 0
2 years ago
Which processes contribute to the formation of chemical sedimentary rocks?
sp2606 [1]

Explanation:

Rock fragments squeeze together

6 0
2 years ago
______ is a non-specific response to disease, in which the body temperature rises.
steposvetlana [31]
The correct answer is fever
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