A required component of food that performs a physiological function in the body is called a .

What is the necessity of food in the context of cell and tissue functions?It provides energy and raw materialsIt controls organ functionsIt regulates brain activityIt prevents cell division

Substances you must obtain from food to meet the body's physiological needs are called nutrients.

It is required to fuel body functions, that comes from the food that is taken inside the body that goes through the process of chemical breakdown resulting to substances that cells can use as fuel.

Which of the following is not a function of the digestive system?Multiple ChoiceTransport of nutrients to the tissues of the bodyAbsorption of nutrientsIngestion of foodDigestion of food

Case-Based Question:To carry out a simple function such as eating food there has to be coordination of the eyes,hands and the mouth. The eyes have to focus on the food, the hands have to pick it up andtake it to the mouth where it will be chewed. All these actions have to be coordinated in sucha manner that they follow a particular sequence and the action is completed. A similarmechanism is also needed for internal functions of the body. This function is carried out bythe nervous system. It is composed of(a)Name the specialised cells which can detect, receive and transmit different kinds of stimuli.(b) Nerve fibres which are certain bundles of extended processes of nerve cells.