There four main types of physical activity. Which one can consume the greatest number of calories within the same amount of time

Answers on this paper or on your A4 papers 1. The energy spent on digestion of food is called ____________________ ______________________ . The energy required to digest ______________________ is higher than _______________________. (6 marks) 2. In the small intestine, the surface area is much increased with circular folds, the finger like mucosal projections called _______________________ and ______________________ on the surface the intestinal cells. 

1. Considering homeostasis. 

(a) What is homeostasis? Why is it important for living organism?

(b) Name 2 physiological parameters that are maintained in a homeostatic state normally.

Q.2 (a) Which monosaccharide will you get if starch is completely digested?           (1 mark)

(b) Which enzyme is required to breakdown, respectively, each of the following disaccharides into monosaccharides and what are the respective monosaccharides resulted?                                                                                                                  

Maltose

Enzyme:_______________  Monosaccharides:__________________________

Sucrose

Enzyme:_______________  Monosaccharides:__________________________

Lactose

Enzyme:_______________ Monosaccharides:__________________________

3. (a)  a word equation of the formation of triglycerides. (2 marks) 

(b) Trans fat is an unhealthy fat. (i) State one characteristics of trans fats compared to vegetable oils. (1 mark) 

(ii) Explain why trans fats are harmful to health. (2 marks)  

4 4. Considering energy balance and physical activities: 

(a) Which gender has a higher basal metabolic rate? Provide TWO reasons. (3 marks) 

(b) There four main types of physical activity. Which one can consume the greatest number of calories within the same amount of time? Why? (3 marks)