An enzyme is a protein catalyst that lowers the activation energy required to undergo a chemical reaction, which speeds up the rate of reaction.
A prokaryotic cell does not contain a nucleus, while a eukaryotic cell does contain a nucleus.
In eukaryotic cells, a nucleus holds the cell's DNA. Ribosomes is the site of protein synthesis. Cell membrane acts as a layer of protection for the organelles. The cytoplasm holds the cell's shape and suspends the organelles within the cell.
Plant cells contain chloroplast, chlorophyll, and a cell wall. Animal cells contain centrioles.
Particulates can penetrate in respiratory system so the correct answer is c. cause lung and heart disease.
PM stands for particulate matter, often known as particle pollution, which is the word used to describe an airborne mixture of solid and liquid droplets. Dust, grime, soot, and smoke are examples of particulate that are large enough or dark enough to be visible to the unaided eye. Some can only be seen with an electron microscope because they are so tiny.
The lungs can be reached by particles in the PM2.5 size range that can penetrate far into the respiratory system. Shortness of breath, coughing, sneezing, runny nose, eye, nose, throat, and lung irritation are just a few short-term health impacts that can result from exposure to tiny particles.
Additionally, exposure to particulate can impair lung function and make illnesses like asthma and heart disease worse.
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THE ATMOSPHERE.
hahahahaha
<span>Out of the following
given choices;</span>
mutation
recombination
differentiation
change
<span>The answer is
change and mutation. When there is a mismatch base pair the mismatch repair mechanism
of the polymerase enzyme kicks in. if the mismatch repair is defective, then a mutation will occur at the site of the mismatched base. These mutations can result in
changes in the phenotype of the cell that results
in disease. </span>
