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Recent questions tagged unit8

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Veins which carry blood to organs other than heart are called portal system.}\\\text{Reason:Hepatic portal system is present in all vertebrates and have 2 or 3 portal systems.}\end{array}$

asked Jul 11, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Bird's four chambered heart is superior to the four charbered heart of crocodiles .}\\\text{Reason:Crocodilian heart has both systemic arches joining resulting in mixing of blood in dorsal aorta.Avian heart has lost systemic arch.}\end{array}$

asked Jul 11, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:The S-A node acts as a pacemaker.}\\\text{Reason:The S-A node is located in the wall of the right atruim near the interatrial septun.}\end{array}$

asked Jul 11, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:The stem cells of bone marrow have lymphocytes and these occur in the blood,lymph and connective tissues.}\\\text{Reason:Lymphocytes migrate to bursal lymphoid tissue or to thymus and differentiate into B or T-cells.}\end{array}$

asked Jul 11, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:An adipose layer is absent under the skin of piokilothermic animals.}\\\text{Reason:These animals use fat in metabolism during hibernation.}\end{array}$

asked Jul 11, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Veins have valve which open away from the heart.}\\\text{Reason:Veins distribute blood to the various parts.}\end{array}$

asked Jul 11, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Prothrombin is essential for blood clotting.}\\\text{Reason:Prothrombin is synthesized in the liver in the presence of }Ca^{++}.\end{array}$

asked Jul 11, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Peyer's patches represent an endocrine tissue.}\\\text{Reason:Peyer's patches are located on the epithelium of colon.}\end{array}$

asked Jul 11, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Lymph capillaries are free and blind at one end.}\\\text{Reason:Lymph doe not flow in a circular manner.}\end{array}$

asked Jul 11, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Mild fever strengthens the defence mechanism of the body.}\\\text{Reason:High temperature is harmful and should be brought down by giving antipyretics and by applying cold packs.}\end{array}$

asked Jul 11, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Frequent vaginal douches should be avoided.}\\\text{Reason:Lactobacilli normally present in the ****** change glycogen of the broken off cells into lactic acid that kills foreign bacteria.}\end{array}$

asked Jul 11, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Lymphocytes arise in the bone marrow and differentiate in the bursal lymphoid tissues or in the thymus into B-cells and T-cells.}\\\text{Reason:B-cells and T-cells are prepared for providing humoral and cell-mediated immunity.}\end{array}$

asked Jul 11, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Aids spreads by contact between the blood of an infected person and a healthy person.}\\\text{Reason:Aids manifests as tumours or as pathogen infection.}\end{array}$

asked Jul 11, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Second infection of the same pathogen is quickly eliminated.}\\\text{Reason:Performed memory B-and T-cells mount a quick and vigorous attack on pathogens re-entering the body.}\end{array}$

asked Jul 11, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Interferons help eliminate viral infections..}\\\text{Reason:Interferons released cells reach the nearly uninfected cells and make them resistant to viral infection.}\end{array}$

asked Jul 11, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Phagocytes capture and digest microbes.}\\\text{Reason:Killer T-cells approach the body cells covered with viruses and destroy such cells before viruses can enter and multiply to spread infection .}\end{array}$

asked Jul 11, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Macrophages occur only in the connective tissue.}\\\text{Reason:Role of neutrophils is different from that of macrophages.}\end{array}$

asked Jul 11, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Macrophages are multipurpose cells of the body's defence mechanism.}\\\text{Reason:They carry on phagocytosis,display the antigens of the engulfed microbes to the lymphocytes and secrete interleukin-I.}\end{array}$

asked Jul 10, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Allergic persons are less likely to develop tumours than the others.}\\\text{Reason:Allergies do not run in families.}\end{array}$

asked Jul 10, 2014 by sreemathi.v

1 answer

Antiviral substances are

asked Jul 10, 2014 by sreemathi.v

1 answer

Viruses cannot be cultured in any artificial medium because they

asked Jul 10, 2014 by sreemathi.v

1 answer

The major phagocytic cells are

asked Jul 10, 2014 by sreemathi.v

1 answer

James phipps is associated with a viral disease of which has been fully eliminated from the world.It is

asked Jul 10, 2014 by sreemathi.v

1 answer

On stimulation by a foreign antigen in the body,the T-lymphocytes produce by division a clone of T-cells called

asked Jul 10, 2014 by sreemathi.v

1 answer

HIV attacks the

asked Jul 10, 2014 by sreemathi.v

1 answer

In allergy,inflammatory response is caused by the release of

asked Jul 10, 2014 by sreemathi.v

1 answer

Passive immunity is defined as immunity

asked Jul 10, 2014 by sreemathi.v

1 answer

Which of the following diseases is due to an alergic reaction?

asked Jul 10, 2014 by sreemathi.v

1 answer

Antiserum contains

asked Jul 10, 2014 by sreemathi.v

1 answer

HIV has a protein coat and a genetic material which is

asked Jul 10, 2014 by sreemathi.v

1 answer

An autoimmune disease is

asked Jul 10, 2014 by sreemathi.v

1 answer

Antibodies are

asked Jul 10, 2014 by sreemathi.v

1 answer

AIDS is transmitted through

asked Jul 10, 2014 by sreemathi.v

1 answer

Interferon acts against

asked Jul 10, 2014 by sreemathi.v

1 answer

Tissue affinity and portal of entry determine

asked Jul 10, 2014 by sreemathi.v

1 answer

Inflammatory response in allergy is due to release by mast cells of

asked Jul 10, 2014 by sreemathi.v

1 answer

A molecule that produces an immune response is

asked Jul 10, 2014 by sreemathi.v

1 answer

Hormone produced in allergic reaction is

asked Jul 10, 2014 by sreemathi.v

1 answer

A person has developed interferon in his body,he seems to carry infection of

asked Jul 10, 2014 by sreemathi.v

1 answer

Type of immunoglobulin present in colostrum is

asked Jul 10, 2014 by sreemathi.v

1 answer

Cornea transplantation has become common due to

asked Jul 10, 2014 by sreemathi.v

1 answer

Antibody production is assisted by

asked Jul 10, 2014 by sreemathi.v

1 answer

Antigens are found

asked Jul 10, 2014 by sreemathi.v

1 answer

What is induced in (polio) vaccination

asked Jul 10, 2014 by sreemathi.v

1 answer

A kind of all allery as

asked Jul 10, 2014 by sreemathi.v

1 answer

A compound formed in an organism for inhibiting growth of another organism is

asked Jul 10, 2014 by sreemathi.v

1 answer

Antibody

asked Jul 10, 2014 by sreemathi.v

1 answer

Antiserum has

asked Jul 10, 2014 by sreemathi.v

1 answer

Suspension of attenuated pathogen that stimulated antibody formation is

asked Jul 10, 2014 by sreemathi.v

1 answer

A noninfectious unnatural and unusual reaction to a substance or condition is

asked Jul 10, 2014 by sreemathi.v

1 answer

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