Answer:
The correct answer will be option-D
Explanation:
Pulmonary Surfactant is a complex substance produced by the pneumocytes epithelial II cells in the alveolar sac.
The surfactant is composed of the proteins and lipids which plays a role in keeping alveoli open by reducing the surface tension formed between the air and liquid.
The surfactant act by forming a monolayer surface film which helps reduce the surface tension.
Thus, option-D is the correct answer.
Answer:
The thermosphere is the outer layer of the Earth's atmosphere, extending from about 53 miles to more than 370 miles above the surface. The temperature increases rapidly in this layer due to the absorption of huge amounts of incoming high energy solar radiation by atoms of nitrogen and oxygen.
Explanation:
At the end of week 8 of development, the perichondrium surrounding the diaphysis is invaded by blood vessels and becomes a component of bone-forming <u>Periosteum.</u>
The perichondrium functions in growth and repair of cartilage. It resists outward expansion when cartilage is subjected to pressure. The perichondrium is a dense layer of fibrous connective tissue that covers cartilage in various parts of the body. Perichondrium tissue commonly covers these areas: elastic cartilage in parts of the ear, nose and hyaline cartilage in the larynx. This means that the bone can only grow in length, not width. The epiphyses are pushed away from each other. After the chondrocytes have undergone hypertrophy, they die.
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Because the enzyme efficiency peaks at higher temperatures, the enzyme will work best at medium to high temperatures.
Since energy is used, the type of reaction photosynthesis is : ( A ) Endergonic reaction
<h3>What is Endergonic reaction ?</h3>
Endergonic reaction is a type of reaction that requires a free energy to continue, since photosynthetic organisms such as green algae require the use of free energy ( solar photons ) to reduce CO₂ and oxidation of H₂O to oxygen.
Therefore we can conclude that photosynthesis is an example of an endergonic reaction.
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