Answer:
the leucocytes, neutrophils, and monocytes can engulf foreign substances like bacteria
Explanation:
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Answer:
Cholesterol is a much needed component in the cell that is present in the plasma membrane and is also used as a hormone precursor. A lipoprotein complex (such as LDL or low density lipoprotein) is then used to transport the cholesterol to other cells in the body. On the surface of the cell is a LDL receptor that binds the LDL complex to begin the endocytic process. These receptors were synthesized in the Endoplasmic Reticulum (ER) and were then transported and processed in the Golgi. Once the receptor is bound to the complex on the surface of the cell, clathrins are recruited along with other proteins that aid in the process. The receptors cluster together to form clathrin-coated pits. The coated pits are pinched off, forming endocytic vesicles, and are then uncoated. After uncoating, the vesicle is delivered to an endosome. The low pH in the endosome causes a conformational change that releases the LDL particles. These particles are then directed to the lysosome for degradation, releasing the cholesterol into the cell.
Some Glimses are taken from the internet
b. natural gas
c. isobutanol
d. none of the above
The correct answer is isobutanol.
Genetic engineering is the branch in which a little manipulation in the DNA of the organism can help in production of the desired product. The cyanobacteria belongs to the phylum of bacteria that performs photosynthesis.
The synthesis of isobutanol cab be done by genetically modified cyanobacteria as these modified cyanobacteria produce biofuels, such as isobutanol with the help of solar energy and carbon dioxide. They grow faster as compared to plants and absorb sunlight more efficiently so they can replenish more isobutanol.
Answer:
It is c
Explanation:
b. hydrogen bonds within molecules are broken.
c. hydrogen bonds are broken and proteins are permanently denatured.
d. hydrogen bonds are broken, proteins are denatured, and membranes become too fluid.
Answer:
The correct answer is option d, that is, hydrogen bonds are broken, proteins are denatured, and membranes become too fluid.
Explanation:
The maximum growth temperature refers to the highest temperature at which growth can take place. Let us take an example of bacteria, it is found that each bacterial species possess a requirement of specific growth temperature, which is mainly determined by the requirement of the temperature of its enzymes. Each of the organism exhibits an optimum growth temperature, a minimum growth temperature, and a maximum growth temperature.
When for an organism, the temperature goes more than its maximum growth than it results in the dissociation of the hydrogen bonds, denaturation of the proteins, and even the membranes become too fluid. This can even result in the death of the species. However, there are some of the organisms, which can thrive high temperatures known as thermoduric organisms, but they fail to grow effectively at such temperatures.
Exceeding the maximum growth temperature of an organism can lead to the breaking of hydrogen bonds, denaturation of proteins and the over-fluidization of cell membranes.
At temperatures higher than the maximum growth temperature for an organism, d. hydrogen bonds are broken, proteins are denatured, and membranes become too fluid. When the temperature exceeds the maximum threshold for an organism, this exerts stress on the cell causing various biological consequences. For instance, hydrogen bonds within molecules can get disrupted, which can lead to protein denaturation. This means that the proteins lose their functional 3-dimensional shape, a process that can sometimes be irreversible. Moreover, excessive heat can increase the fluidity of cellular membranes to an extent such that they cannot function properly anymore, making the cell unviable.
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Answer:
Prokaryotes are the most primitive form of life that exist on earth. They came before eukaryotes.
The main difference is the presence of nucleus which is present in eukaryotes and absent in prokaryotes.
The genetic material of prokaryotes are dissolved in the cytoplasm whereas in case of eukaryotes the genetic material is in-tacked inside a double membrane organelle nucleus.
There are many more membrane bound cell organelles found in eukaryotes that are absent in prokaryotes.
A
displacement
B
distance
C
frame of reference
D
graph
Answer:
Correct answer is displacement. (A)
Explanation:
You can describe the motion of an object by its position, speed, direction, and acceleration. An object is moving if its position relative to a fixed point is changing. Even things that appear to be at rest move.