Questions · Page 2 of 3

One word answer.

Question 531 Mark

Whether goitre is an inherited or deficiency disease?

Answer

Goiters can occur when the thyroid gland produces either too much thyroid hormone (hyperthyroidism) or not enough (hypothyroidism). Much more rarely, the problem may arise when the pituitary gland stimulates thyroid growth to boost production of the hormone. It is a deficiency disease.

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Question 541 Mark

Define immunity.

Answer

The capability of the body to fight against infection owing to the presence of specific antibodies is called immunity.

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Question 561 Mark

What is acute disease?

Answer

An acute disease is a short duration disease which often has a relatively severe course.

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Question 571 Mark

Define antibiotics?

Answer

Antibiotic is a chemical produced by a microorganisms, which kills or prevents the growth of other microorganisms and save us from the attack of disease.

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Question 581 Mark

Name the external factor which is responsible for ringworm disease.

Answer

Excessive sweating, contact with infected human beings are two external factors of ringworm disease.

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Question 591 Mark

Write down the modes of transmission of tuberculosis.

Answer

It is transmitted directly (by sneezing, coughing) and indirectly (air borne disease).

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Question 601 Mark

Name the most common method to prevent infection?

Answer

Vaccination is one of the most effective method to prevent infection.

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Question 611 Mark

What is another name of tuberculosis?

Answer

White Plague and Pott’s disease are another name of tuberculosis.

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Question 621 Mark

Why is it difficult to develop vaccines for some diseases?

Answer

It may not be very easy to treat a communicable disease and so it is always a good idea to prevent them from happening because,

  1. A communicable disease can damage the body organ functioning.
  2. A treatment will take time, money and other resources. Moreover, the person may be bedridden for the period.
  3. A communicable disease can spread very fast that can be contracted by other people.

Therefore, prevention is always better than cure when it comes to communicable diseases.

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Question 631 Mark

Write any two basic conditions necessary for keeping good health.

Answer

Eating balanced diet and personal and domestic hygiene are two basic conditions necessary for keeping good health.

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Question 641 Mark

If a pregnant mother is suffering from AIDS, would her child get the disease via genes or placenta.

Answer

If a pregnant mother is suffering from AIDS, would her child get the disease via Placenta. (AIDS in a viral disease, it is not a genetic disease).

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Question 671 Mark

It is suggested to wear socks and full sleeves to prevent the attack from dengue. Why?

Answer

Wearing socks and full sleeves cover body which prevents mosquito bite. This helps in protecting the body against diseases which are caused by mosquito bites such as dengue, malaria etc. Since dengue spreads through mosquitoe' s bite covering your body would result in less chances of being bitten by mosquitoes it becomes easier to bite at night for mosquitoes because we re sleeping also dengue vector mosquitoe bite only at night. WE while slleping generally our legs are coverd with blankets hands are vulnerable.

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Question 681 Mark

Expand the following abbreviations:

NIDS.

Answer

The full form of NIDS is National immunisation days, e.g. 4 NIDs for PPIP.

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Question 721 Mark

What are contributing causes of disease?

Answer

Contributing causes are factors which make an individual prone to catch a disease, e.g. undernourishment, defective heredity, poor public health services.

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Question 731 Mark

Name the enzyme present in tears which prevents eye infections.

Answer

Lysozyme is the enzyme present in tears which prevents eye infections while crying.

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Question 751 Mark

Name the viral disease against which we have been able to develop drug.

Answer

AIDS is a disease against which we have been able to develop drug.

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Question 761 Mark

Define the word disease carrier.

Answer

Disease carrier is defined as an organism, place or thing that harbours germs of a disease but does not suffer from the disease is termed as carrier. Housefly is an example of disease carrier.

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Question 771 Mark

Expand the following abbreviations:

PPIP.

Answer

The full form of PPIP is Pulse polio immunisation programme.

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Question 781 Mark

It was diagnosed that Preeti suffers from Japanese encephalitis, which organ of Preeti’s body is affected?

Answer

Organ affected in Japanese Encephalitis–Brain.

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Question 791 Mark

Why female Anopheles mosquito feeds on human blood?

Answer

It requires protein of human blood to lay eggs and transmit the disease via blood.

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Question 801 Mark

Differentiate between healthy and disease free?

Answer

Healthy and Disease Free are basic states of normal humans. A healthy person can be disease free, but a disease free person cannot be a healthy person; i.e. healthy is a state of an individual, who is physically, mentally, emotionally and physiological well in their lifestyles. While, Disease-free is a state of the body, which merely implies freedom from diseases.

Healthy is a state wherein a person is fit and fine from all aspects, including all his physical, mental, psychological and emotional state. Being healthy refers to being free from any diseases. But, being diseases free does not refer to be healthy, i.e. a person who is disease free does not have any diseases but, they might not be stable from inside as that of a healthy person.

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Question 811 Mark

While going abroad, why it is essential to get vaccinated against certain diseases?

Answer

A person may be carrier of some disease. Such a person may take that particular disease to a foreign country. Therefore, all visitors to a foreign country are vaccinated against the disease which is not prevalent in that country. It also acts as preventive measure against diseases commonly found in foreign country. This way the traveller and the host country become disease free.

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Question 821 Mark

Which parameters to health are difficult to measure?

Answer

Mental health and social well being are abstract concepts and cannot be measured on any parameters.

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Question 851 Mark

Name the disease the child will not suffer from if BCG vaccine is given.

Answer

Tuberculosis will not happen if child is BCG vaccinated against it.

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Question 861 Mark

Name in which:

Antibiotic has no role.

Answer

The right answer is Malaria: In Malaria antibiotics have no role and show no resistance against disease.

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Question 881 Mark

Give one example acute and of chronic diseases.

Answer
  1. Acute disease example: Asthma.

  2. Chronic disease example: Heart failure.

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Question 891 Mark

What is correct?

Wearing socks and full sleeves at night will prevent the attack from dengue.

Answer

Wearing socks and full sleeves at night will not prevent the attack from dengue as dengue spreads at day time. Dengue is caused by bite of Aedes aegypti mosquito which is active during day time only.

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Question 901 Mark

Give scientific name of vector of dengue.

Answer

Aedes aegypti, the yellow fever mosquito, is a mosquito that can spread dengue fever, chikungunya, Zika fever, Mayaro and yellow fever viruses, and other diseases.

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Question 911 Mark

Give two examples of bacterial diseases.

Answer

Tuberculosis (T.B.) and Typhoid are examples of bacterial diseases.

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Question 921 Mark

Name in which:

Mass scale immunization is going on in India.

Answer

The right answer is Polio: Mass immunization campaigns, known as National Immunization Days (NIDs) is going on India.

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Question 931 Mark

Name in which:

Kissing does not spread the disease while sexual transfer the same.

Answer

The right answer is AIDS: Kissing does not spread the disease as saliva exchange does not transfer the virus. On the other hand sexual transfer leads to development of disease AIDS.

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Question 951 Mark

Name the target cells of Plasmodium (malaria pathogen).

Answer

Red blood corpuscles (erythrocytes) and liver cells are targeted by malarial pathogen.

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Question 971 Mark

Give one example of each of diseases caused by bacteria and virus.

Answer

Typhoid and polio respectively.

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Question 981 Mark

Name the chemical present in the stomach, which kills the microbes.

Answer

HCL in stomach kills the microbes.

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Question 991 Mark

Who were awarded Nobel Prize for discovery of treatment for peptic ulcers?

Answer

Barry Marshall and Robin Warren got Nobel prize for Physiology and Medicine, 2005 for discovery of treatment of peptic ulcers.

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Question 1001 Mark

Name three factors which may be responsible for the disease.

Answer

The three factors are the host, environment, and agents of disease.

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One word answer. - Page 2 - Science STD 9 Questions - Vidyadip