Answer:
In the MIGHTY MITOCHANDRIA WHICH IS THE POWERHOUSE OF THE CELL.
Electrons are found in the nucleus of an atom.
The strength of a magnetic field increases with distance.
Electric engines change electricity into magnetism.
Answer:
The third one
Explanation:
electrons are found in the nucleus of an atom
b. resulting in variationasexual reproduction in the plants
c. resulting in variationgenes being expressed in different ways due to environmental conditions
d. a gene mutation that occurred after the clone was produced
Answer:
Option C, resulting in variation genes being expressed in different ways due to environmental conditions
Explanation:
Several genetic traits are affected by both internal and external environmental conditions. Some common examples are – height , color of eye, hair color, skin color, and even some genetic diseases.
The internal environmental factors include – gender, temperature etc.
While the external environmental factors include drugs, chemicals, temperature, and light.
Hence, the external environmental condition i.e pH of soil is producing different color of flowers in a given plant
Hence, option C is correct
Answer:
The correct statement would be - the bacterial cell due to the largest surface-to-volume ratio.
Explanation:
The surface area to volume ratio plays a very important role in determining the rate of the diffusion enter and exit from the cell body. If the surface-to-volume ratio is lower then the rate of diffusion would be lower to similarly with an increase in the ratio, the rate of diffusion also increases.
So, the bacteria like small organism have a cell which is exposed to a large surface area to the surrounding in comparison of the human egg cell.
Thus, the correct answer would be - the bacterial cell due to the largest surface-to-volume ratio.
A smaller spherical bacterial cell with a radius of 3μm can more efficiently exchange materials with the external environment compared to a larger human egg cell with a radius of 100μm, due to its higher surface area-to-volume ratio.
The statement that correctly indicates the cell that is able to more efficiently exchange materials with the external environment is that the spherical bacterial cell with a radius of 3μm can more efficiently exchange materials. This is because a smaller cell has a higher surface area-to-volume ratio, allowing for a faster exchange of materials through the cell membrane. On the other hand, the human egg cell with a radius of 100μm, being larger, has a lower surface area-to-volume ratio and is less efficient in exchanging materials with the external environment.
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The proteins for a cell made in the cells ribosomes
Proteins are made inside the cells. Protein synthesis is the condition where a cell makes a protein. The instructions how to make a protein are held in DNA molecules inside the cell nucleus. The two major stages in making a protein are called transcription and translation.
Transcription is when the cell makes a copy or "transcript" of the DNA. The copy of DNA is called RNA. It is used in the next step, which is called translation.
The next step in making a protein is called translation, where the RNA is converted or "translated" into a amino acids sequence that makes up the protein.
The proteins for a cell made in the cells ribosomes.
When the cell needs to make a protein, mRNA created in the nucleus. Then mRNA is sent out of the nucleus and to the ribosomes. When it is time to make the protein, the two subunits come together and combine with the mRNA. Then the subunits lock onto the mRNA and it start the synthesis of protein.
Grade: 9
Subject: biology
Chapter: proteins
Keywords: transcription, translation
The ribosomes are the organelles in which the proteins are made. Except for red blood cells (RCBs), all the other cells in the body make protein as each cell is made up of protein. The DNA present in the nucleus instructs the ribosomes in the cells to synthesize proteins.
Further Explanation:
The ribosomes are involved in the synthesis of proteins by taking part in the translation process. During translation, the nucleotide triplet or codon sequence present in the messenger RNA is read by the ribosome and translated into an amino acid sequence to form proteins.
The ribosomes are composed of one large subunit which creates a polypeptide chain that links the amino acids together and a small which reads the codon sequence in the mRNA. They are present in both eukaryotes and prokaryotes. The prokaryotes have no membrane-enclosed organelles, therefore the ribosomes are found floating free in the cytosol. While in eukaryotes, the ribosomes are present within the nucleus, surrounding the endoplasmic reticulum, as well as free ribosomes in the cytoplasm of the cell.
In eukaryotes, the large and the small subunit of the ribosome has been identified as 60S and 40S subunit respectively whereas, 50S and 30S are the respective large and small subunits present in the prokaryotes.
The overall protein synthesis involves two processes: transcription and translation. During transcription, the information present in the DNA is copied and transcribed into mRNA. This mRNA sequence is used during translation to be translated into desired protein.
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Answer Details:
Grade: High School
Subject: Biology
Chapter: Protein Synthesis
Keywords:
Ribosomes, protein synthesis, translation, mRNA, codon, membrane-enclosed organelles, prokaryotes, eukaryotes, transcription.