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mario62 [17]
3 years ago
5

What is the role of b cells in the human immune system

Biology
1 answer:
Natasha_Volkova [10]3 years ago
4 0
B cells mature in the bone marrow, which is at the core of most bones It recognises invaders by the shape of molecules -antigens- on their surfaces. With the help of T cells, B cells make proteins called antibodies. The antibodies will help your body become aware of intruders.
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Remember the law of conservation of mass. The human body uses cellular respiration to make energy. Using the chemical equation f
posledela

With the equation of cellular respiration C₆H₁₂O₆ + 6O₂ → 6CO₂+ 6H₂O, gaseous exchange takes place, glucose reacts with oxygen forming Adenosine Triphosphate used by cells.

About 21% of oxygen and 0.4% of carbon dioxide of air is inhaled while the air we breathe out contains 16.4% of oxygen and 4.4% of carbon dioxide because cells use oxygen inhaled to release energy and carbon dioxide as byproduct.

<h3>How does Cellular Respiration work?</h3>

Cellular respiration is how organisms convert fuel into energy and nutrients by combining oxygen with food molecules, sending the chemical energy for life sustaining activities while expelling carbon dioxide and water.

We inhale 21% of oxygen and 0.4% of carbon dioxide and exhale 16.4% of oxygen and 4.4% of carbon dioxide as by product during the process of cellular respiration.

Find out more on cellular respiration here: brainly.com/question/25921566

#SPJ1

5 0
1 year ago
S it possible to produce malleable cast iron in pieces having large cross-sectional dimensions?
ivolga24 [154]
IT IS NOT POSSIBLE to produce malleable cast iron in pieces having large cross sectional dimension. This is because, iron has a very rapid cooling rate and it will not be possible to achieve this rate at different cross sectional areas in a sheet of iron.  
8 0
3 years ago
WHICH STATEMENT IS the strongest evidence in support of endosymbiotic theory of eukaryote evolution
wlad13 [49]

Answer:

Please see my answer below.

If you like my response you can mark it as brainliest.

If you have any doubts (no joke) you can reach out to me in the comments.

Explanation:

<em><u>The endosymbiotic theory states that some of the organelles in eukaryotic cells were once prokaryotic microbes. Mitochondria and chloroplasts are the same size as prokaryotic cells and divide by binary fission. Mitochondria and chloroplasts have their own DNA which is circular, not linear.</u></em>

5 0
2 years ago
What is required for both the light dependent and light independent reactions to proceed
damaskus [11]

Answer:

for light dependent , chlorophyll The pigment, sunlight and water. while for light independent co2 , ribose sugar ATP, NADPH

3 0
3 years ago
A student examining leaf cross sections under a microscope finds many loosely packed cells with relatively thin cell walls. The
Ghella [55]

Answer:

The answer is spongy mesophyll.

Explanation:

Between the upper and lower epidermis of a leave, you can find the so called mesophyll tissue which is rich in chloroplasts. There are two types of mesophyll tissue: the palisade and the spongy mesophyll. Whereas the cells of the palisade mesophyll are tightly packed, the cells of the spongy mesophyll are loosely packed.

3 0
2 years ago
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