Tag: busy at work - our internal organs

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Questions Related to busy at work - our internal organs

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

Consider the following statements: 
1. The force that blood exerts force against the wall of a vessel is called blood pressure. 
2. The pressure of blood inside the artery during contraction is called systolic pressure and pressure in an artery during relaxation is called diastolic pressure. 
3. Blood pressure is measured with an instrument called sphygmomanometer.
Which of the statements given above are correct?

  1. 1 and 2

  2. 1 and 3

  3. 2 and 3

  4. 1 , 2 and 3
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

All statements are accurate. Blood pressure is the force against vessel walls; systolic/diastolic pressures correspond to heart contraction/relaxation; and the sphygmomanometer is the standard clinical tool for measurement.

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

Which one of the following vitamins has a role in blood clotting?

  1. Vitamin A

  2. Vitamin D

  3. Vitamin E

  4. Vitamin K
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
A. Vitamin A takes part in the formation of visual retinal pigments like rhodopsin, iodopsin etc. and thus, it is required for normal vision.
B. Vitamin D regulates the metabolism of calcium and phosphorus and in turn affects the growth of body by affecting the growth of bone and teeth.
C. Vitamin E is necessary for maintaining sterility.
D. Vitamin K is necessary for the formation of prothrombin (important component of blood clotting mechanism) in the liver of human beings and thus, it is involved in clotting of blood.
So, the correct answer is 'Vitamin K'.
Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

Which of the following disease is caused when plaque blocks the arteries which supply blood to the heart?

  1. Coronary heart disease

  2. Haemophilia

  3. Arthritis

  4. Leukemia
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Coronary artery disease develops when the major blood vessels that supply our heart with blood, oxygen, and nutrients become damaged or diseased. The disease is caused when plaque blocks the arteries which supply blood to the heart.

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

The blood of many animals is red because of the presence of this pigment containing iron. What is it called?

  1. Chlorophyll

  2. Haemoglobin

  3. Biliverdin

  4. Bilirubin
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Hemoglobin is a protein present in the red blood cells. The hemoglobin carries oxygen in the blood and transfers it in our body, it is the element that gives red color to our blood. Iron works as a booster towards hemoglobin production in the blood.

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

Complete digestion takes place in which part of cockroach?

  1. In crop

  2. In Gizzard

  3. In stomach

  4. In oesophagous
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Cockroaches belong to phylum Arthropoda which has well developed the digestive system. The digestion of starch in the buccal cavity is followed by complete grinding of food in crop and gizzard which finally enters the stomach. The digestive enzymes secreted by the gastric caeca act upon the food in the stomach. These enzymes include amylase, maltase, invertase, tryptase and lipase. The remaining carbohydrates, proteins and fats are digested here.The digested food is absorbed through the stomach walls into the surrounding space which is called the haemocoel. The haemocoel consists of a large number of fat bodies which are fat cells having fat globules, protein granules and glycogen. They form storage structures which transport to different parts of the body. So, the correct answer is option C.

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

Strongest proteolytic enzyme is released by ............ part of alimentary canal.

  1. Ileum

  2. Pancreas

  3. Stomach

  4. Liver
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The oesophagus leads into the stomach. The stomach is a muscular sac. The stomach is the most important site of protein digestion. Stomach wall has peptic cells, chief cells secrete pepsinogen and oxyntic and parietal cells secrete hydrochloric acid. The pepsinogen is activated to pepsin on exposure to hydrochloric acid. The pepsin is a chief proteolytic enzyme of the alimentary canal. Another important enzyme of the stomach is lysozyme which is antibacterial. Thus, the correct answer is option C.

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

Pylorus is the constricted part of the alimentary canal which is situated in between 

  1. Oesophagus and stomach

  2. Stomach and duodenum

  3. Duodenum and ileum

  4. Ileum and rectum
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The pylorus is a narrow cone shaped constriction present at the end of the stomach and the beginning of the small intestine. It contains two region antrum which connects the parts of the stomach and pyloric canal which connects the stomach and small intestine.  Thus, the correct answer is option B.

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

The amount of gastric juice secreted per day from man's stomach is about

  1. 500 ml to 800 ml

  2. 1200 ml to 1500 ml

  3. 100 ml to 500 ml

  4. 10 ml to 15 ml
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The gastric mucosa is present is in the inner wall of the stomach which secretes 1.2 to 1.5 litres of gastric juice per day. Gastric juice is a mixture of HCl, mucous and digestive enzymes which makes food particles soluble, initiates protein digestion and converts the gastric contents to a semiliquid mass called chyme, thus preparing it for further digestion in the small intestine. This juice is highly acidic because of its hydrochloric acid content, and it is rich in enzymes.