1.
The foodstuffs essential to us on a daily basis are:- (Select Five)
Correct Answer(s)
A. Proteins
B. Vitamins
C. Carbohydrates
E. Mineral Salts
F. Water
Explanation
The foodstuffs essential to us on a daily basis are proteins, vitamins, carbohydrates, mineral salts, and water. Proteins are important for growth and repair of tissues, vitamins are necessary for various bodily functions, carbohydrates provide energy, mineral salts help maintain proper bodily functions, and water is essential for hydration and various bodily processes.
2.
Water forms nearly one half of the body weight, and it is essential for life.
Correct Answer
B. False
Explanation
Water forms nearly one half of the body weight. This statement is false. While water is important for the body and makes up a significant portion of it, it does not make up nearly one half of the body weight. The actual percentage varies depending on factors such as age, sex, and body composition, but on average, water makes up about 60% of adult body weight.
3.
The Organs of Digestion are divided into:- (Select Two)
Correct Answer(s)
A. The alimentary canal - about nine metres long, starting at the mouth and ending at the anus.
B. The accessory organs which assist with digestion, absorption and storage of food substances. These are the pancreas, liver and gall bladder.
Explanation
The explanation for the given correct answer is that the organs of digestion are divided into two categories. The first category is the alimentary canal, which is about nine meters long and starts at the mouth and ends at the anus. This canal is responsible for the process of digestion, absorption, and elimination of food. The second category is the accessory organs, which include the pancreas, liver, and gall bladder. These organs assist in the digestion, absorption, and storage of food substances. Together, these two categories of organs work together to ensure proper digestion and absorption of nutrients from food.
4.
The Stomach is a hollow muscular organ lying inferiorly to the diaphragm in the lower left quadrant.
Correct Answer
B. False
Explanation
The given statement is false. The stomach is not located in the lower left quadrant, but rather in the upper left quadrant of the abdomen. It is a hollow muscular organ that lies below the diaphragm and is positioned between the esophagus and the small intestine.
5.
The colon is not as smooth as the small intestine, but is puckered due to three bands of longitudinal muscle fibres which are shorter than the bowel.
Correct Answer
A. True
Explanation
The statement explains that the colon is not as smooth as the small intestine because it is puckered due to three bands of longitudinal muscle fibers that are shorter than the bowel. This suggests that the statement is true, as it provides a clear explanation of the physical characteristics of the colon.
6.
The liver is the largest gland in the body and lies inferiorly to the diaphragm, and is the most important and very active organ. Its functions are:- (Select Four)
Correct Answer(s)
A. Excess amino acids are broken down into glucose and urea. Glucose is used as fuel and urea is excreted by the kidneys.
B. It converts fat which is stored in the body into a suitable form for combustion.
C. It stores iron and Vitamins A, B12, D, E and K.
E. It forms Vitamin A from carotene.
Explanation
The liver performs multiple important functions in the body. It breaks down excess amino acids into glucose and urea, with glucose being used as fuel and urea excreted by the kidneys. The liver also converts stored fat into a form that can be used for energy. It stores essential nutrients such as iron and vitamins A, B12, D, E, and K. Additionally, the liver has the ability to convert carotene into vitamin A. These functions highlight the vital role of the liver in metabolism, nutrient storage, and detoxification processes in the body.