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sergij07 [2.7K]
3 years ago
9

How can a human cell in prophase of mitosis be distinguished from human cell in prophase l of meiosis?A. By the presence of kine

tochores in the mitotic cell .B. By the presence of a spindle in the mitotic cell.C. By the presence of twice as many chromosomes in the meiotic cellD. By the presence of half as many chromosomes in the meiotic cell.E. By the presence of paired homologous chromosomes in the meiotic cell.
Biology
1 answer:
Len [333]3 years ago
7 0

Answer:

E. By presence of paired homologous chromosomes in the meiotic cell.

Explanation:

Differences between Mitotic Prophase and Prophase 1 of Meiosis:

  • The prophase of mitosis is relatively shorter than prophase 1 of meiosis.
  • Prophase of mitosis is characterized by the disintegration of the nuclear membrane and the movement of the duplicated centrioles towards the two poles of the cell.
  • Prophase 1 of meiosis is relatively longer and involves a number of consecutive events that do not occur in the mitotic prophase.
  • Prophase 1 of meiosis involves the disintegration of the nuclear membrane as well. But the most important event of this phase is the pairing of homologous chromosomes through a connection called a synapse. This is called chiasmata formation. Homologous chromosomes pair up in form of tetrads and exchange segments with each other. This process is called crossing over and it is crucial in the production of genetically varied daughter cells.  
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igor_vitrenko [27]

Answer:

Glycolysis occurs in the Cytoplasm

Electron Transport Chain occurs in the Mitchondria

Krebs Cycle also occurs in the mitchondria

Explanation:

Glycolysis is the first step in the breakdown of glucose to extract energy for cellular metabolism. Nearly all living organisms carry out glycolysis as part of their metabolism. The process does not use oxygen and is therefore anaerobic. Glycolysis takes place in the cytoplasm of both prokaryotic and eukaryotic cells.

The electron transport chain is the last stage of the respiration pathway. It is the stage that produces the most ATP molecules. The electron transport chain is a collection of carrier proteins found on the inner membrane of mitochondria. NADH  hydrogen ions and electrons into the transport chain.

The Krebs cycle happens only within the mitochondrial matrix. Pyruvate is formed in the cytosol of the cell, then imported into the mitochondria.

(Credits to websites)

7 0
3 years ago
The fat in adipose cells is broken down into fatty acids. Which pathway is involved in this process?
Airida [17]
<span>If the fat in adipose cells is broken down into fatty acids, the pathway involved in this process is called the catabolic pathway. Unlike anabolic pathways, which use a lot of energy to synthesize molecules, catabolic pathways are there to break down molecules into smaller units in order to release energy. </span>
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3 years ago
All BUT one is a function of the cell wall. That is
gulaghasi [49]

Answer:

The outer covering of plant cell that surrounds the plasma membrane of the plant cell is known as cell wall.

Explanation:

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7 0
3 years ago
What class of rock is basalt?
Georgia [21]
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3 years ago
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dybincka [34]

Answer:

b. Nucleotides  

Explanation:

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The nucleotide is a group formed by the association of 3 molecules - a nitrogen base, a phosphate group and a pentose glycide. Thus, we may have variations within these ligands, such as: in DNA we have the presence of pentose deoxyribose, while in RNA we have the presence of pentose ribose.

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3 years ago
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