Structure L and I are the superior and inferior vena cava. They bring de-oxygenated blood from the body into the right atria.
Nutrients enter a cell up the concentration gradient by the process of active transport.
Answer:
The lectin pathway or lectin complement pathway is a type of cascade reaction in the complement system, similar in structure to the classical complement pathway, in that, after activation, it proceeds through the action of C4 and C2 to produce activated complement proteins further down the cascade.
Answer:
Yes, enzymes can be found in bacteria.
Explanation:
The process is known as proteolysis. Proteolysis occurs at the different rates for the different types of proteins present in the body.
