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3 years ago

What are the most numerous cells in the lungs?

1 answer:

3 0

The most numerous cells in the lungs are dust cells, also known by their scientific term of alveolar marcrophages.
These cells are located in any person's lungs and are responsible for keeping your lungs and air pipes clean of any dust particles and other materials that may harm your body. Their role is to destroy any foreign substances, such as bacteria and others.

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In a typical epithelial cell na,k-atpase is restricted to:

andreev551 [17]

<span>In a typical epithelial cell na, k-atpase is restricted to the domain of the plasma membrane of the cell. The enzyme is distributed in a polarized manner within this restriction and is a crucial element in transporting substances across epithelia by creating the ionic gradients that drive the net movement of glucose, amino acides, and ions.</span>

4 0

3 years ago

During photosynthesis, light energy is converted to the energy in chemical bonds. What also happens according to the predictions

Bingel [31]

Answer:

The correct option is c. c. heat is released in the process.

Explanation:

Thermodynamics is the study of the behavior of heat energy and the ways in which energy is transformed into heat. The second law of thermodynamics indicates that from one form of energy to another (mechanical energy to chemical heat and vice versa) there is loss of energy in the form of heat. This form of energy, known as heat, is degraded energy, which is simply disorganized movement of molecules. The second law of thermodynamics implies that there is always a tendency towards greater disorder or entropy. To counteract entropy, that is to create order, energy must be used. This can be observed in a natural ecosystem: the energy emitted by the sun is captured by plants and converted into energy stored by photosynthetic processes.

Photosynthesis is the process in which the energy of light is converted into chemical energy in the form of sugars. The energy accumulated by plants during photosynthesis is called primary productivity. The solar energy that reaches the surface of an ecosystem is only used approximately 1%, because the losses are considerable until reaching primary production. In effect, approximately 45% of the available light is absorbable by photosynthetic organelles; a part of the potential radiation is reflected; another part is transmitted by the vegetal organs, that is to say, that passes through them, and the absorbed energy is transformed into heat.

5 0

4 years ago

Read 2 more answers

HELP ASAP!!!

ICE Princess25 [194]

Q: 5: Which of the following best describes anabolic reactions?

Answer:

Energy-storing reactions which link simple molecules together to make complex ones

Explanation:

Anabolism or anabolic reactions comprise the process during which simpler molecules are joined or linked to form complex compounds. These reaction require the input of energy but ultimately that energy is stored in complex molecules for later use.

Organisms employ the reactions which absorb the energy in several reactions. and this absorbed energy is then stored for later use to perform various activities of the body.

For example: Photosynthesis is the common example during which energy from the sun is used to create sugar based molecules like sucrose and glucose. The formation of glucose is an anabolic process because it makes complex compound from simple compounds and stores energy in them which is later used to by plants to perform daily activities and work.

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Q: 18: What are the folds of the inner membrane of mitochondria?

Answer:

Cristae

Explanation:

Cristea are the fodings present in inner mitochondrial membrane . The reason why there are called cristae came from Latin word crest that means wrinkled or irregular shape in a way that increases the surface area of the object.

If we look at cristea in mitochondria , its purpose is same, to provide a huge amount of surface area for the diverse types of reactions of cellular respiration that takes place in the inner mitochondrial membrane.

These folds not only enhance surface area but also support aerobic cellular respiration in a number of ways. there are large amount of proteins studded in cristaea like cytochromes and ATP synthases that make sure an efficient execution of the process of cellular respiration.

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Q 13: Which statement correctly describe one similarity between cellular respiration and photosynthesis?

Answer:

Cellular respiration and photosynthesis both have water and carbon dioxide in the reactions

Explanation:

If we talk about the processes of photosynthesis and Cellular respiration both are almost exact opposite in nature. The products of cellular respiration are the reactants of photosynthesis and vice versa.

The sunlight in mandatory for the execution of photosynthesis however, cellular respiration depends on the supply of glucose and ultimate three phases (glycolysis, kreb cycle and electron transport chain) to transform the glucose in the usable energy reservoir ATP.

But still, when we look at the equations of cellular respiration and photosynthesis, we see something is common. And what is that common thing is, Cellular respiration and photosynthesis both have water and carbon dioxide in the reactions . (please see attached figure).

In cellular respiration, water and carbon dioxide are the products along with energy, while in photosynthesis water and carbon dioxide are the reactants.

Hope it helps!

7 0

4 years ago

The immediate product of transcription is ________. The immediate product of transcription is ________. a protein an amino acid

AlekseyPX

Answer:

RNA

Explanation:

Transcription is the first process of protein synthesis and it involves copying the information encoded in the genetic material (DNA) to a RNA molecule. It involves making a complementary strand of mRNA from a DNA template.

The process of transcription commences when an enzyme called RNA polymerase binds to the promoter region of a gene on the DNA, signalling the unwinding of its double-stranded structure. The RNA polymerase then adds nucleotides to the growing RNA molecule, complementary to the ones it reads on the DNA. The RNA synthesized during transcription is called messenger RNA (mRNA).

The mRNA is then used as a template for amino acids synthesis during translation.

4 0

3 years ago

listen to the three examples of sound and related spectrogram. make one observation about each of the three spectrograms

beks73 [17]

Answer:

Explanation:

Sounds are wave. They are made through vibrations that travels or moves in the air.

Example-Bell rings- sounds gotten when a bell is ringed.

Spectogram is a way in which the strength of loudness can be represented with time visually. Example of spectogram

spectrogram(x) - It returns the Fourier transform of the input signal, x.

Spectogram x, window- This uses windows to separate signals into segments.

Spectogram, window, Nover lap - This make us of nover lap between adjoining segments.

4 0

3 years ago