Question

Which of the following are true regarding homeostasis (select all that apply)?

Select one or more:

a. The process is determined by the optimal ranges of proteins and enzymes.

b. The process involves integration of multiple organ systems.

c. The process involves both positive and negative feedback mechanisms.

d. The process is found in multicellular and unicellular groups.

e. The process involves controlled systems and regulatory systems.

Answer 1

In brief words, homeostasis is a set of processes involved in the autoregulation of the organism’s body. The main goal of these processes is to keep constant and regulated all the metabolic functions of our body. For, this the homeostasis can regulate some reactions in a positive or in a negative feedback, so option c is correct. To accomplish homeostasis, several organs must function in a coordinated way, so b is also correct.

However, not only multicellular organisms can accomplish homeostasis. In fact, bacterial cells posses specialized proteins and enzymes that allows them to regulate the levels of iron, so d is correct. Finally, this process is controlled by the nervous and endocrine systems which means that e is correct.