Question

How is homeostasis achieved
Cells control voluntary movements
Cells control involuntary movements
Cells maintain internal stability
Cells secrete stomach enzymes

Answer 1

Homeostasis is achieved through various mechanisms in the body.

Cells play a crucial role in maintaining homeostasis by controlling voluntary movements. For example, skeletal muscle cells are responsible for voluntary body movements such as walking or reaching. These cells receive signals from the brain and nervous system to initiate and control these movements, ensuring that the body remains in a balanced state.

Similarly, cells control involuntary movements that are essential for homeostasis. For instance, smooth muscle cells in the digestive system are responsible for peristalsis, a wave-like contraction that propels food along the digestive tract. This movement helps to efficiently digest and absorb nutrients, thereby maintaining the body's energy balance.

Cells also contribute to maintaining internal stability by regulating various physiological functions. For instance, cells in the liver help in metabolizing nutrients and detoxifying harmful substances, while cells in the kidneys maintain water and electrolyte balance in the body. Additionally, cells in the endocrine system secrete hormones that regulate various bodily functions, including maintaining blood sugar levels, regulating metabolism, and controlling body temperature.

However, the statement "Cells secrete stomach enzymes" is not entirely accurate in the context of homeostasis. While cells in the stomach do secrete enzymes such as pepsinogen and gastric lipase, their primary function is involved in the process of digestion rather than maintaining overall homeostasis.