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yawa3891 [41]
3 years ago
13

A student records the mass of a piece of iron. The iron is then left outside until it rusts. What type of reaction occurs, and h

ow does the mass of the object after rusting compare with its original mass?
Biology
1 answer:
Vaselesa [24]3 years ago
5 0
The mass is the same but the reaction is called decay. 
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State the difference between the synthesis and the breakdown of a protein. thanks!
Vesna [10]

Synthesis of protein is the building up of protein molecule while the breakdown of protein is the degradation of the protein molecule.

<h3>What is protein?</h3>

Protein is one of the biological molecules that present in living organisms and contain it's building blocks known as amino acids.

The synthesis of protein is the process used by living organism to produce proteins from amino acids (that is the building block).

The breakdown of protein is the degradation of protein molecule which is also called catabolism.

Therefore, the difference between protein synthesis and breakdown is that synthesis of protein is the building up of protein molecule while the breakdown of protein is the degradation of the protein molecule.

Learn more about protein here:

brainly.com/question/884935

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3 0
2 years ago
If antibodies to fibronectin are exposed to an embryo through which neural crest cells are migrating
lidiya [134]

Answer:

Neural crest cell movements are inhibited.

Explanation:

Neural crest cells may be defined as the temporary group of cells that are unique for the chordata group. These cells arise from the embryonic ectoderm and give rise to future melanocytes.

Antibodies to fibronectin association is helpful to study the signalling factors. If these anitodies to fibronectin is shown in the embryonical stage. The neural crest migration is inhibited by its exposure to fibronectin and this might hinder the embryonic development.

Thus, the answer is neural crest cell movements are inhibited.

3 0
3 years ago
A scientist observes some cells under a compound microscope and needs to determine if they are bacteria or yeast. Aside from siz
djyliett [7]

Answer:

chitin and murein

Explanation:

The chemical compounds that distinguish bacteria cell from yeast cell are  

chitin and murein

Chitin is a polysaccharide present in the exoskeleton of fungi made up of chains of modified glucose known as N-acetylglucosamine. N-acetylglucosamine is derived from glucose

While murein is a mesh like structure made up of sugar and amino acids. Murein forms a layer outside the plasma membrane of bacterial cell.  

5 0
3 years ago
Read 2 more answers
A change is a single nitrogenous base can cause a mutation called which of the following
ziro4ka [17]
D. Zoomatic mutation.
6 0
3 years ago
Read 2 more answers
You are given two fat-like solid substances and upon analysis you determine that Sample A has a higher melting point than sample
cricket20 [7]

Answer:

c) has a lower number of carbon-carbon double bonds than sample B.

Explanation:

The two fat samples were compared on the basis of their melting point. Fats with no carbon-carbon double bonds in their hydrocarbon chains are called saturated ones. These fat molecules are packed tightly and have a higher melting point. On the other hand, the fats with one or more double bonds between carbon atoms are said to be unsaturated ones. These unsaturated fats have a lower melting point as the kink produced by double bonds does not allow their tight packing. Therefore, sample A with a higher melting point should have a less number of C-C double bonds than sample B.

4 0
4 years ago
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