Answer:
Serum or urine components
Explanation:
Multiple myeloma is the cancer developed in the plasma cell that is a kind of white blood cell. The plasma cell helps in production of antibodies that protects the body from infection. Multiple myeloma causes the cancerous cells to aggregate in the bone marrow and covers the healthy cells.
The diagnosis of this type of cancer includes bone marrow biopsy, urine and blood tests. The bone marrow plasmocytosis includes the increase in plasma cells number in the bone marrow. The areas of bone damage that are due to cancerous plasma cell are the lytic bone lesions.
The proteins produced by the cancerous cells are detected in serum and urine samples. Thus, definitive diagnosis of multiple myeloma includes the triad of bone marrow plasmacytosis, lytic bone lesions, and <u>Serum</u>.
The Lock-and-key mechanism was first proposed by Emil Fischer which described as the enzymatic reactions whereby an enzyme with a single substrate binds temporarily to form a substrate complex.
The lock-and-key mechanism is usually associated with the complementary shapes of an enzyme with a single substrate, wherein the lock that is being referred to is the enzyme and the substrate is the key. One right sized substrate (key) fits into the active site (key hole) of the enzyme (lock).
The active site which is mentioned above is structurally complementary to the substrate. This is the temporary binding site on the enzymes. Just like a lock and key, the enzyme as the lock and the substrate as the key is said to fit together.
The exchange takes place in the millions of alveoli in the lungs and the capillaries that envelope them.
C) Natural selection
When something happens in nature and something changes all of a sudden, the animals tend to adapt to what gives them more chances of survival. As a result, a large amount of the population would attempt to adapt in a way that helps them survive.
