Portal System

Q.

What is a venous heart?

Q. Which of the following statement is correct about chylomicrons?
I. Chylomicrons are produced in the epithelial cells of small intestine
II. It contains triglycerides, cholesterol and phospholipids
III. It is protein coated small vesicles
IV. Chylomicrons are released from the epithelial cell into lacteals

1. I and IV
2. II and III
3. I, III and IV
4. I, II, III and IV

Q. An example of unicellular gland is:

1. Salivary gland
2. Brunner's gland
3. Goblet cell
4. Gastric gland

Q. Hepatic portal system is a vascular connection between

1. heart and all other organs
2. digestive tract and liver
3. lungs and heart
4. none of the above

Q. Maximum reabsorption of useful substances back into the blood from the filtrate in a nephron occurs in:

1. Proximal convoluted tubule
2. Loop of Henle
3. Distal convoluted tubule
4. Collecting duct

Q. Function of DCT

Q.

Write the differences between:

Systole and Diastole

Q.

Most suitable salt which can be used for efficient clotting of blood will be:

1. Mg(HCO₃)₂

2. FeSO₄

3. NaHCO₃

4. FeCl₃

Q.

What hormone stimulates glycogenolysis?

Q.

4 Name the vascular connection that exists between the digestive tract and liver.

Q.

What is the significance of hepatic portal system in the circulatory system?

Q.

Why should glucose be converted to glycogen?and why is it again converted to glucose?

Q. _____________ carries deoxygenated blood from the intestine to the liver before it is delivered to the systemic circulation

1. Pulmonary vein
2. Pulmonary artery
3. Aorta
4. Hepatic portal vein

Q.

The blood circulation which starts in and ends into capillaries is

1. Renal circulation

2. Portal circulation

3. Hepatic circulation

4. Lymphatic circulation

Q. The principal function of blood vascular system in cockroach is

1. transportation of heat
2. distribution of absorbed nutrients
3. transportation of enzymes
4. distribution of oxygen

Q. Glycogenolysis is

1. Oxidation of sugar
2. Conversion of glycogen into glucose
3. Conversion of glucose into glycogen
4. Conversion of glycogen into fat

Q. Carbohydrates, proteins, fats and organic acids are the various respiratory substrates. Amongst these which is the most preferred substrate for respiration?

1. Carbohydrates
2. Proteins
3. Organic acid
4. Fats

Q. carries blood from the digestive tract to the liver and carries blood from the liver to the inferior vena cava.

1. Hepatic artery
2. Hepatic portal vein
3. Hepatic vein
4. Lacteal

Q. Which of the following is a part of the posterior choroid plexus?

1. Epithalamus
2. Hypothalamus
3. Thalamus
4. Medulla oblongata

Q. The diagram below represents the simplified pathway of the circulation of blood. Study the same and answer the questions that follow:

(e) Draw a diagram of the different blood cells as seen in a smear of human blood.

Q. The conversion of a protein waste, into urea, occurs in

1. Intestine
2. Liver
3. Kidneys
4. Lungs

Q. The part of the nephron most involved in reabsorption of sodium is

1. Bowman's capsule
2. Descending limb of Henle's loop
3. Distal convoluted tube
4. Proximal convoluted tubule

Q.

Match the functions of the cells in the Alveoli.

$\begin{array}{cc}ColumnI& ColumnII\\ i.Type1pneumocytes& a.Producessurfactant\\ ii.Type2pneumocytes& b.Macrophages\\ iii.Type3pneumocytes& c.Exchangeofgases\end{array}$

1. i) - c., ii) - b., iii) - a.

2. i) - c., ii) - a., iii) - b.

3. i) - b., ii) -c., iii) - a.

4. i) - a., ii) -c., iii) - b.

Q. The blood vessel that begins and ends in capillaries is the ______ (hepatic artery, hepatic portal vein, hepatic vein).

Q. There is a pair of bean-shaped organs P in the human body towards the back, just above the waist. A waste product Q formed by the decomposition of unused proteins in the liver is brought into organ P through blood by an artery R. The numerous tiny filters S present in organ P clean the dirty blood by removing the waste product Q. The clean blood goes into circulation through a vein T. The waste substance Q, other waste salts, and excess water form a yellowish liquid U which goes from organ P into a bag-like structure V through two tubes W. This liquid is then thrown out of the body through a tube X.
(c) What are tiny filters S known as ?

Q.
Blood from gastrointestinal tract goes to

1. Liver
2. Lungs
3. Feet
4. Heart

Q. The hepatic portal vein before reaching the liver, joins the

1. Dorso-lumbar
2. Gonadal veins
3. Anterior abdominal vein
4. Femoro-renal

Q. Which of the following is concerned with the formation of urea in rabbit :-

1. Blood
2. Kidney
3. Spleen
4. Liver

Q. The diagram below represents the simplified pathway of the circulation of blood. Study the same and answer the following questions.
(i) Name the blood vessels labelled 1 and 2.
(ii) State the function of blood vessels labelled 5 and 8.
(iii) What is the importance of the blood vessel labelled 6?
(iv) Which blood vessel will contain a high amount of glucose after a meal ?
(v) Draw a diagram of the different blood cells as seen in an amino acids smear of human blood.

Q. Both hepatic and renal portal systems are found in

1. Amphibians, Reptiles, Mammals
2. Reptiles, Aves, Mammals
3. Cyclostomes, Fishes, Amphibians
4. Fishes, Amphibians, Reptiles