Question

It has been estimated that in humans, there are more than _________ hormones present in the body.

		15
		1000
		150
		80

Which of the following statements best describes the role of hormones within the human body.

		All hormones elicit the same effect on the same tissue and the effects only last a few minutes.
		Each hormone only works on specific cell types in specific tissues and the effects can last from a few minutes to years.
		All hormones elicit the same effect on the same tissue and the effects can last from a few minutes to years.
		Each hormone elicits its effect only on the brain and the effect can last for only a few minutes.

Which of the following  secreted substances contributes to lipid digestion and absorption?

		Bile salts
		Amylase
		Insulin
		Pepsin

o avoid suffocation from liquids or solid foods which valve has to close the air passageways ?

		pharynx
		epiglottis
		trachea
		larynx

A new protein bar has been introduced containing 10 grams of lipids and 10 grams of carbohydrates and 10 grams of proteins. How many total calories does this new protein bar have?

		300
		120
		17
		170

Gina often goes through long periods of self starvation, where she avoids eating food for a long time. These long periods of not eating result in Gina losing too much weight and an imbalance in her metabolism. She might be suffering from:

		Osteoporosis
		Anorexia nervosa
		Bulimia nervosa
		Obesity

Match the neurotransmitter with its behavior or related disease.

1. Dopamine                     A) Arousal; Depression

            2. Serotonin                      B) Reward circuits; Parkinson’s disease / Schizophrenia

            3. Norepinephrine C) Depression; Aggression; Schizophrenia

		1A; 2C; 3B
		1B; 2C; 3A
		A. 1A; 2B; 3C
		1C; 2A; 3B

Answer 1

1. 80

The human body secretes and circulates some 50 different hormones.

2. Each hormone only works on specific cell types in specific tissues and the effects can last from a few minutes to years.

3. Bile salts

Bile salts help in the emulsification and thus digestion of lipids.

4. Epiglottis

epiglottis is a large, leaf-shaped piece of cartilage lying on top of the larynx; during swallowing the larynx elevates, causing the epiglottis to fall on the glottis (opening into larynx) like a lid, closing it off - this prevents food from entering the windpipe

4. 170 calories

Carbohydrates provide 4 calories per gram, protein provides 4 calories per gram, and fat provides 9 calories per gram.

Now as 1gm of carbohydrates provides 4 calories therefore 10 grams will provide- 10x4 =40 calories

protein provides 4 calories per gram, therefore 10grams of protein will provide 10 x4 = 40 calories

fat provides 9 calories per gram, therefore 10 grams of fats will provide 10 x9 = 90 calories.

Thus total calories = 40 + 40 + 90 = 170 calories

5. Bullimia nervosa

Bulimia nervosa is a serious, potentially life-threatening eating disorder characterized by a cycle of bingeing and compensatory behaviours.