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Wittaler [7]
2 years ago
8

Explain why red blood cells are unable to replace damaged proteins

Biology
1 answer:
Harman [31]2 years ago
3 0


The sole reason why red blood cells are unable to replace damaged proteins is that red blood cells lack DNA and cell organelles such as nucleus, ribosomes and mitochondria which are crucial for protein synthesis, assembly and repair. In other words they lack both the information and the machinery for making or repair of proteins.

Due to  lack of DNA and cell organelles, red blood cells cannot be able satisfy the central dogma which  summarizes synthesis of proteins as DNA → RNA → proteins.

DNA has the genetic information on how proteins should be made, RNA is responsible for transferring the information from DNA in the cell nucleus to the ribosomes  in the cytoplasm,  then translating or decoding  this information, which results in the making of  protein.

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If someone can just give me an idea of what the answer is you don’t have to type out a full crq
saveliy_v [14]

Explanation:

Actually, two organelles transport protein in a eukaryotic cell (multicellular organisms): (rough) Endoplasmic Recticulum and Golgi Apparatus.

The (rough) endoplasmic recticulum transport the newly synthesized proteins to the golgi apparatus from where they are transported to the various regions of the cell or outside the cell. Smooth endoplasmic recticulum is not associated with protein transport.

Proteins, carrying a signaling sequence, are transported from the endoplasmic recticulum, packaged into vesicles, to the golgi apparatus (or golgi complex or golgi bodies). These proteins are modified by enzymatic reactions as they move through the golgi apparatus. After processing, these proteins are either excreted from the cell or are sent to various locations within the cell. 

It is difficult to pinpoint the location of these organelles within the cell as locations are different for mammals, plants, yeasts, etc. Generally, the golgi apparatus is found adjacent to the endoplasmic recticulum, which in turn is found throughout the cell but has a higher density near the nucleus.  

3 0
3 years ago
A new bacteria was introduced to the Antarctic ecosystem which dissolves the outer shells of crustaceans. What animal would be m
Leno4ka [110]

Answer:

it would be Fragilariopsis curta  because it is part of the diatom subspecies of algae and has a hard bone like silica shell making it more like a crustacean than a true algae

3 0
2 years ago
The advantage of excreting nitrogenous wastes as urea instead of ammonia is that:________ a) urea requires more water for excret
ICE Princess25 [194]

Answer: B

Explanation:

Ammonia is so toxic that it can be transported and excreted only in large volumes of very dilute solution. As a result most terrestrial animals simply don't have access to sufficient water to routine excrete ammonia.

The main advantage of urea is its very low toxicity. Animals can transport urea in the circulatory system and store it safely in high concentrations. Also much less water is loss when a given quantity of nitrogen is excreted in a concentrated solution of urea than would be in a dilute solution of ammonia.

4 0
3 years ago
What’s the difference between alleles that are codominant and those that are incompletely dominant?
gulaghasi [49]

Answer:

Codominant- when both are expressed like in flower red and white are codominant so they mixes to get a pinks flower.

Incomplete Dominants- is when a where cow and brown cow mix the offspring are brown with white patches

5 0
3 years ago
What is fragmentation ?
finlep [7]

Fragmentation is the breaking of the body into parts and then the organism develops all the parts of the body. The fragmentation is the type of reproduction in lower organisms. The fragments which are produced can develop into new organisms.

6 0
2 years ago
Read 2 more answers
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