Hairs are mostly fibrous proteins and are composed of keratin, and also the main constituent of skin, nails, wool, woof, feathers etc.
Keratin is the essential fibrous protein which has a structural and protective functions in the epithelium.
<h2><u>Full Question:</u></h2>
Which statement correctly compares and contrasts the three stages of cellular respiration that occur in the presence of oxygen? Each stage occurs in the mitochondria, but only the final stage produces ATP. Each stage produces ATP, but only the third stage occurs in the mitochondria. Each stage produces ATP, but only the first stage occurs in the cytoplasm. Each stage occurs in the cytoplasm, but only the final stage produces ATP.
<h2><u>
Answer</u>:</h2>
Each stage produces ATP, but only the first stage occurs in the cytoplasm.
<h3><u>Explanation</u>:</h3>
Cellular respiration is the process by which the glucose or any respiratory substrate is burned down inside a cell producing ATP or energy. This process of cellular respiration is seen in each and every living cell. The glucose is burned in the cytoplasm of the cell producing the pyruvate. This pyruvate is decarboxylated into Acetyl CoA and transferred inside the mitochondria. So the glycolysis or the 1st step of cellular respiration occurs in cytoplasm and rest inside the mitochondria.
ATP is produced from each astep of cellular respiration. So the correct option is option C.
It would have to be the third answer, "a strong thunderstorm destroys many of the nests of a bird population."
They form an ionic bond by exchanging one electron
The substance that yields a Cation plus the Hydroxyl ion in water is a Base.
A Cation is a positively charged ion. A Hydroxyl ion is an ion with a negative charge and is made up on one oxygen atom and one hydrogen atom. Bases are substances that promote chemical reactions. Dissociation is a process in which ionic compounds split into smaller particles.
<span>In this case, the base acts by dissociation to yield a Cation plus a Hydroxyl ion in water. </span>
