6. HUMAN HEALTH AND DISEASES
2020
SAY
1. Observe the
list of certain common diseases in human given below and answer the following:
(2)
Common cold, Malaria, Amoebiasis, Typhoid, Filariasis
(a)
Identify the
bacterial disease among the enlisted.
(b)
Name its
causative organism.
(c)
Mention any two
symptoms of it.
ü Answer:
(a) Typhoid.
(b) Salmonella typhi.
(c) Sustained high
fever, stomach pain, constipation, head ache etc.
2. Prepare a
pamphlet as part of an awareness programme in your school regarding the “Prevention
and control of Alcohol and Drug abuse in adolescents”. (3)
[Hint: Prevention and control measures]
ü Answer:
· Avoid undue peer pressure.
· Education and counselling.
· Seeking help from parents and peers.
· Looking for danger signs.
· Seeking professional and medical help.
2020
MARCH
1. Name any two
protozoan diseases, its causative organism and any two symptoms. (2)
ü Answer:
Protozoan disease 1: Malaria
Causative organism: Plasmodium sp.
Symptoms: Chill and high fever.
Protozoan disease 2: Amoebiasis.
Causative organism: Entamoeba histolytica.
Symptoms: Constipation, abdominal pain.
2. Complete the
illustration chart given below. (2)
ü Answer:
(a) Opioids
(b) Stimulates CNS.
(c) Papaver sominferum (Poppy plant)
(d) Cannabis sativa (Hemp plant)
3. Explain the
measures useful for prevention and control of alcohol and drugs abuse among
adolescents. (3)
ü Answer:
Avoid undue peer pressure.
Education and counselling.
Seeking help from parents and peers.
Looking for danger signs.
Seeking professional and medical help.
2019
SAY June
1. 'Don't die of
ignorance.' (2)
a.
About which it
is mentioned?
b.
List two
measures taken by WHO to prevent it.
ü Answer:
(a) AIDS
(b) Advocate safe sex and free distribution of condoms.
Make blood (from blood banks) safe from HIV.
2. Observe the
figure and answer the following questions: (2)
a.
Identify the
given molecule.
b.
Mention two
types of immune responses in human body.
ü Answer:
(a) Antibody (Immunoglobulin)
(b) Humoral immune response (AMI) and Cell mediated
immune response (CMI).
3. Write the
effect of the following drugs in human body: (3)
a.
Opioids
b.
Cannabinoids
c.
Coca alkaloids
ü Answer:
(a) Opioids: Depressants. Affect CNS.
(b) Cannabinoids: Acts in brain. Affects cardiovascular system.
(c) Coca alkaloids: Stimulates CNS.
2019
MARCH
1. Complete the
flow chart given below: (2)
ü Answer:
(a) Acquired immunity.
(b) Physiological barrier
(c) Cytokine barrier
(d) Cell mediated immunity.
2. List of some
diseases commonly occurring in man are given below. Arrange them based on
causative organism in the table. (2)
Malaria, Common cold, Filariasis, Typhoid, Ascariasis, Ringworms,
Amoebiasis, Pneumonia
|
Bacteria |
Fungus |
Virus |
Protozoan |
|
|
|
|
|
ü Answer:
|
Bacteria |
Fungus |
Virus |
Protozoan |
|
Typhoid Pneumonia |
Ringworms |
Common cold |
Malaria Amoebiasis |
2018
SAY
1. Identity the
bacterial disease from the following: (1)
a.
Typhoid
b.
Amoebiasis
c.
Malaria
d.
Filariasis
ü Answer:
(a) Typhoid
2. Classify the
following barriers of innate immunity under three suitable headings: (3)
Skin, Saliva, WBC, Monocyte, Mucus, Acid of stomach
ü Answer:
Physical barriers: Skin, Mucus.
Physiological barriers: Acid of stomach, Saliva.
Cellular barriers: WBC, Monocyte.
2018
MARCH
1. Innate immunity
is a non-specific type of defense and consists of four types of barriers.
Categorize the barriers and give one example for each. (2)
ü Answer:
Physical
barriers: E.g. Skin.
Physiological
barriers: E.g. Gastric HCl.
Cellular
barriers: E.g. Neutrophils.
Cytokine
barriers: E.g. Interferon.
2. Complete the
table given below: (2)
|
Column-I |
Column-II |
Column-III |
|
Typhoid |
…….. A…… |
Stomach pain, intestinal perforation |
|
……B……. |
Rhinovirus |
Sore throat, hoarseness |
|
Malignant malaria |
……. C…… |
Chill, high fever |
|
……. D……. |
Wuchereria |
Chronic inflammation of lymph gland |
ü Answer:
A
= Salmonella typhi
B
= Common cold
C
= Plasmodium falciparum
D
= Filariasis (Elephantiasis)
3. Consumption of
drug and alcohol affects the persons mental and physical health very badly.
List the warning signs of alcohol or drug abuse. (2)
ü Answer:
Drop
in academic performance and absence from school.
Lack
of interest in personal hygiene.
Withdrawal
and isolation.
Change
in sleeping and eating habits.
Loss of interest in hobbies.