Answer:
6: Texas, Oklahoma, Colorado, Nebraska, South Dakota, Iowa
7: Canada
8: Gulf of Mexico
9: Mexico
Explanation:
There are two types of alveolar cells. The type I alveolar cells which lines the alveoli and much more abundant than type II alveolar cells. Then the type II alveolar cells lesser in number but functions differently than type I alveolar cells. Type II alveolar cells secrete surfactant (composed of lecitin and sphingomyelin) for the lungs. Surfactant reduces the surface tension inside the alveoli, preventing alveolar consolidation. This is important as babies with dysfunctional type II alveolar cells (usually preterm babies less than 32 weeks age of gestation) will have respiratory distress syndrome in the absence of surfactant.
B. 25% because Bb x Bb= Bb, Bb, Bb, and bb. The only one that will actually show the red feathers is the completely receive one: bb. This is only 1/4 which equals 25%
Answer:
Catalyst is a substance that influences the rate of reaction without being consumed in the reaction.
- They increase the rate of reaction by decreasing the activation energy of the reaction.
- As they are not used up in the reaction they are required in a small quantity.
- In biological system, enzymes are referred to as biological catalyst or biocatalyst. They are generally protein in nature and are very specific for their substrate. They also increases the rate of biological reaction by forming enzyme-substrate complex.
- Few examples of catalyst are: potassium permagnet, platinum, enzyme (like hexokinase, hydrolase etc) etc.
