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Ann [662]
4 years ago
10

How to determine if an atom will gain or lose electrons?

Biology
1 answer:
aalyn [17]4 years ago
7 0

non-metals gain electron and metals lose electrons,

 

<span>Iron is a metal, so when it reacts it loses an electron becomes a cation and form ionic bonds. Hydrogen is a non-metal, it gains an electron when reacting and forms covalent bonds or ionic bonds.</span>
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Sandra examined some animal cells using a compound microscope. Under normal conditions, the cells have an approximate salinity o
Greeley [361]

Answer:

If the cells are submerged in pure distilled water, each cell will absorb water from the environment where it is located, increase its volume and possibly break.

Explanation:

The cells maintain an osmotic balance relationship between their cytoplasm and the extracellular space, that is, the cell is isotonic with the medium.

When a cell is exposed to a hypotonic medium -such as that which provides pure distilled water- water will pass through osmosis from the extracellular space to the cytoplasm, causing the cell to increase in volume (swell) and the increase in internal pressure can Make it break.

<u>In osmosis, water passes from space with less concentration of solutes to the highest concentration</u>.

Learn more:

Isotonic solution brainly.com/question/13943541

3 0
4 years ago
Classify the following items based on the type of polymer they are made from: raincoats and leather shoes. All of these are made
PSYCHO15rus [73]

The question is confusing. You are saying leather shoes are made from natural polymers and, the next thing you say they are made from synthetic polymers. I do not understand.
5 0
3 years ago
why is protein synthesis different in prokaryotes and eukaryotes in prokaryotes dna is stored in the cytoplasm in prokaryotes dn
IRINA_888 [86]

In eukaryotes, it exists slowly because the pre- mRNA exists first synthesized in the nucleus and after splicing, the mature mRNA arrives in the cytoplasm for translation.

Therefore, the correct answer is option B. In prokaryotes, DNA is stored in the cytoplasm.

<h3>Why protein synthesis exists different in prokaryotes and eukaryotes? </h3>

The genetic material DNA in prokaryotes forms a cluster in one kind of cytoplasm. This exists named the nucleoid. This exists because they don't contain a well-structured nucleus with a nuclear membrane.

Due to this, the method of transcription in prokaryotes takes place in the cytoplasm, constituting a polycistronic mRNA. This mRNA later experiences translation to contain any number of proteins.

The method of protein synthesis exists faster in prokaryotes as the whole procedure takes place in the cytoplasm.

In eukaryotes, it exists slowly because the pre- mRNA exists first synthesized in the nucleus and after splicing, the mature mRNA arrives in the cytoplasm for translation.

Therefore, the correct answer is option B. In prokaryotes, DNA is stored in the cytoplasm.

To learn more about prokaryotes refer to:

brainly.com/question/1288013

#SPJ4

The complete question is:

Why is protein synthesis different in prokaryotes and eukaryotes?

A. In prokaryotes, DNA is a strand instead of a circle

B. In prokaryotes, DNA is stored in the cytoplasm

C. In prokaryotes, DNA is made of amino acids

D. In prokaryotes, DNA is made of nucleic acids

4 0
2 years ago
What is mitochondrial DNA?
PtichkaEL [24]

Answer:

Mitochondrial DNA is the small circular chromosome found inside mitochondria. The mitochondria are organelles found in cells that are the sites of energy production. The mitochondria, and thus mitochondrial DNA, are passed from mother to offspring.

4 0
3 years ago
HELP PLEASE
kap26 [50]

Answer:

A. CELLS

Explanation:

Mature xylem is made up of dead cells that do not have cell contents, while phloem contains living cells (albeit without nuclei). The structure of xylem and phloem is also different. While xylem is made up of tracheids and vessels, phloem is made up of sieve tubes which have many holes for transporting nutrients.

hope it helps ! love uuu!!! mark me brainliest pleasee! will help anytime ;))

4 0
3 years ago
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