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White raven [17]
2 years ago
11

Describe the microscopic structures you would expect to see in the lungs.

Biology
1 answer:
Sati [7]2 years ago
5 0

Answer:

Alveoli

Explain:

They are the workhorses of your respiratory system. You have about 480 million alveoli, located at the end of bronchial tubes. When you breathe in, the alveoli expand to take in oxygen. When you breathe out, the alveoli shrink to expel carbon dioxide.

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An analysis of a cell indicated a high lipid content in the membranes, a high protein content in the vesicles being mobilized an
Anon25 [30]

The option that best illustrates the similarity and difference in the elemental makeup of these molecules is that carbohydrates and lipids both contain carbon, hydrogen, and oxygen atoms, while the proteins contain nitrogen in addition to those three elements. That is option B.

Carbohydrates are macromolecule found is food substances that plays a vital role of energy supply to the body.

It is made up of chemical elements such as carbon,hydrogen and oxygen in the ratio of 1:2:1.

Lipid is another macromolecule found in food which is an energy reserve for the body.

Lipids are made up of elements seen in carbohydrates such as carbon, hydrogen and oxygen but contain many more hydrogen atoms than oxygen atoms.

Proteins are another type of macromolecule found in food which helps in body building and repair of worn out tissues.

Proteins are made up of elements seen in carbohydrates and lipids with the addition of nitrogen atom.

Therefore, carbohydrates and lipids both contain carbon, hydrogen, and oxygen atoms, while the proteins contain nitrogen in addition to those three elements.

Learn more about proteins here:

brainly.com/question/10058019

5 0
2 years ago
the continental crust is ? a.made of rock 200 million years ago. b.composed of mostly granite. c. formed quickly cooled lava lay
Kryger [21]

Answer:

It's not C or D because the Crust is actaully around 36km thick so that means it's eitehr A or B and the crust is mostly made form granite so Ima say B is the answer

8 0
2 years ago
An excitatory postsynaptic potential (EPSP)
ella [17]

Answer: A is the correct answer.

Explanation: If it is an EPSP, it increases the likelihood of an action potential. Therefore only A and C make sense. To fire an action potential, the neuron has to depolarize; therefore A is the correct answer.

3 0
3 years ago
Item 2 In which sphere does a dolphin swim?
Romashka-Z-Leto [24]

Hydrosphere

Explanation:

  • The dolphin swims in the hydrosphere.
  • The hydropshere is the region occupied by water on the earth surface.
  • They are the oceans, lakes, rivers, glaciers e.t.c
  • The hydrosphere makes up 70% the total surface area on earth.
  • Ocean occupies a whooping 95% of all.
  • The hydrosphere is able to support aquatic life and this is why the dolphin with its streamlined body swims in this sphere.  

Learn more:

Atmosphere brainly.com/question/1851697

#learnwithBrainly

5 0
3 years ago
Explain the differences between the human egg and the chicken egg. Use what you see in the eggs and what you know about the way
Lady bird [3.3K]
So chickens are eateble but not humans unless theyre cannibalchick eggs are hard and theyre dont stay in mother stomach for long 
8 0
3 years ago
Read 2 more answers
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