Human Health and Disease focuses on understanding the factors that affect human health, the causes of diseases, and the body’s defense mechanisms. This category is designed for school students (Classes 9–12) , NEET aspirants , and undergraduate learners , with strong emphasis on NCERT concepts and exam relevance.
In this section, you will study:
Concepts of health and disease
Common infectious and non-infectious diseases and their causes
Pathogens such as bacteria, viruses, protozoa, and helminths
Immunity, immune system, and vaccination
Allergies, autoimmune disorders, and cancer
Drug and alcohol abuse and their effects
NCERT-based explanations, diagrams, MCQs, and exam-oriented questions
The content is structured to build clear understanding of health-related concepts , improve application-based answers , and help students score well in school examinations, NEET, and undergraduate assessments .
Develop a strong foundation in human health and disease to better understand the science behind illness, prevention, and immunity.
Q. Which plant is commonly used to treat digestive issues due to its high fiber content?
A.
Aloe Vera
B.
Psyllium
C.
Lavender
D.
Mint
Show solution
Solution
Psyllium is known for its high soluble fiber content, aiding in digestion.
Correct Answer:
B
— Psyllium
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Q. Which plant is commonly used to treat digestive issues due to its soothing properties?
A.
Aloe Vera
B.
Mint
C.
Ginger
D.
Chamomile
Show solution
Solution
Chamomile is well-known for its calming effects on the digestive system.
Correct Answer:
D
— Chamomile
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Q. Which plant is known for its ability to improve gut health due to its high fiber content?
A.
Broccoli
B.
Potato
C.
Banana
D.
Spinach
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Solution
Bananas are high in fiber, which is beneficial for gut health and digestion.
Correct Answer:
C
— Banana
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Q. Which plant is known for its ability to improve mood and reduce anxiety?
A.
Lavender
B.
Cactus
C.
Fern
D.
Moss
Show solution
Solution
Lavender is widely recognized for its calming effects and ability to reduce anxiety.
Correct Answer:
A
— Lavender
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Q. Which plant is known for its ability to improve respiratory health?
A.
Eucalyptus
B.
Cactus
C.
Fern
D.
Moss
Show solution
Solution
Eucalyptus is often used to relieve respiratory issues due to its soothing properties.
Correct Answer:
A
— Eucalyptus
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Q. Which plant is known for its antibacterial properties and is often used in traditional medicine?
A.
Garlic
B.
Rosemary
C.
Mint
D.
Basil
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Solution
Garlic contains allicin, which has well-documented antibacterial properties.
Correct Answer:
A
— Garlic
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Q. Which plant is known for its antibacterial properties and is often used in wound healing?
A.
Echinacea
B.
Garlic
C.
Ginger
D.
Chamomile
Show solution
Solution
Garlic contains allicin, which has strong antibacterial properties.
Correct Answer:
B
— Garlic
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Q. Which plant is known for its antimicrobial properties and is often used in natural remedies?
A.
Garlic
B.
Cilantro
C.
Parsley
D.
Oregano
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Solution
Garlic has strong antimicrobial properties and is used in various natural remedies.
Correct Answer:
A
— Garlic
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Q. Which plant is known for its high content of omega-3 fatty acids beneficial for heart health?
A.
Flaxseed
B.
Wheat
C.
Corn
D.
Rice
Show solution
Solution
Flaxseed is rich in omega-3 fatty acids, which are beneficial for heart health.
Correct Answer:
A
— Flaxseed
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Q. Which plant is known for its high vitamin C content and is often used to boost the immune system?
A.
Spinach
B.
Orange
C.
Potato
D.
Broccoli
Show solution
Solution
Oranges are well-known for their high vitamin C content, which is essential for a healthy immune system.
Correct Answer:
B
— Orange
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Q. Which plant is known for its potential to reduce anxiety and improve mood?
A.
Lavender
B.
Cactus
C.
Bamboo
D.
Fern
Show solution
Solution
Lavender is well-known for its calming effects and is often used in aromatherapy to reduce anxiety.
Correct Answer:
A
— Lavender
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Q. Which plant is often referred to as a 'superfood' due to its high nutrient density?
A.
Kale
B.
Potato
C.
Corn
D.
Rice
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Solution
Kale is considered a superfood because of its high levels of vitamins and minerals.
Correct Answer:
A
— Kale
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Q. Which plant is often referred to as a natural remedy for anxiety and stress?
A.
Valerian
B.
Basil
C.
Rosemary
D.
Sage
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Solution
Valerian root is commonly used for its calming effects and is a natural remedy for anxiety.
Correct Answer:
A
— Valerian
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Q. Which plant is often used for its antimicrobial properties in traditional medicine?
A.
Garlic
B.
Rosemary
C.
Basil
D.
Thyme
Show solution
Solution
Garlic is well-known for its antimicrobial properties and has been used in various traditional medicine practices.
Correct Answer:
A
— Garlic
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Q. Which plant is recognized for its ability to improve respiratory health and is often used in teas?
A.
Eucalyptus
B.
Lavender
C.
Rosemary
D.
Sage
Show solution
Solution
Eucalyptus is known for its respiratory benefits and is commonly used in herbal teas.
Correct Answer:
A
— Eucalyptus
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Q. Which plant is recognized for its high antioxidant content and potential cancer-fighting properties?
A.
Blueberries
B.
Potatoes
C.
Carrots
D.
Rice
Show solution
Solution
Blueberries are rich in antioxidants, which may help in cancer prevention.
Correct Answer:
A
— Blueberries
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Q. Which plant is recognized for its potential to alleviate anxiety and stress?
A.
Lavender
B.
Cactus
C.
Fern
D.
Moss
Show solution
Solution
Lavender is widely known for its calming effects and is often used in aromatherapy.
Correct Answer:
A
— Lavender
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Q. Which plant is recognized for its potential to improve cognitive function and memory?
A.
Ginkgo Biloba
B.
Lavender
C.
Rosemary
D.
Sage
Show solution
Solution
Ginkgo Biloba is often associated with improved cognitive function and memory.
Correct Answer:
A
— Ginkgo Biloba
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Q. Which plant is recognized for its role in traditional medicine for treating respiratory issues?
A.
Eucalyptus
B.
Lavender
C.
Rosemary
D.
Thyme
Show solution
Solution
Eucalyptus is often used for its decongestant properties in respiratory treatments.
Correct Answer:
A
— Eucalyptus
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Q. Which plant-derived compound is commonly used to lower cholesterol levels?
A.
Saponins
B.
Alkaloids
C.
Flavonoids
D.
Phenolics
Show solution
Solution
Saponins can help lower cholesterol levels by binding to bile acids.
Correct Answer:
A
— Saponins
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Q. Which plant-derived compound is known for its potential to lower cholesterol levels?
A.
Beta-glucans
B.
Saponins
C.
Alkaloids
D.
Terpenes
Show solution
Solution
Beta-glucans, found in oats and barley, are known to help lower cholesterol levels.
Correct Answer:
A
— Beta-glucans
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Q. Which plant-derived compound is known for its potential to reduce cholesterol levels?
A.
Beta-glucans
B.
Tannins
C.
Saponins
D.
Alkaloids
Show solution
Solution
Beta-glucans, found in oats and barley, are known to help lower cholesterol levels.
Correct Answer:
A
— Beta-glucans
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Q. Which plant-derived substance is commonly used to lower cholesterol levels?
A.
Psyllium
B.
Ginger
C.
Garlic
D.
Turmeric
Show solution
Solution
Garlic is known for its ability to lower cholesterol levels and improve heart health.
Correct Answer:
C
— Garlic
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Q. Which plant-derived substance is known for its ability to enhance immune function?
A.
Echinacea
B.
Lavender
C.
Chamomile
D.
Ginger
Show solution
Solution
Echinacea is widely recognized for its immune-boosting properties.
Correct Answer:
A
— Echinacea
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Q. Which plant-derived substance is known for its potential to lower cholesterol levels?
A.
Psyllium
B.
Caffeine
C.
Tannins
D.
Saponins
Show solution
Solution
Psyllium, a soluble fiber from the psyllium plant, can help lower cholesterol levels.
Correct Answer:
A
— Psyllium
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Q. Which plant-derived substance is known to have antimicrobial properties?
A.
Eucalyptus oil
B.
Coconut oil
C.
Olive oil
D.
Sunflower oil
Show solution
Solution
Eucalyptus oil has been recognized for its antimicrobial properties.
Correct Answer:
A
— Eucalyptus oil
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Q. Which plant-derived substance is known to lower cholesterol levels in humans?
A.
Psyllium
B.
Saponins
C.
Tannins
D.
Resins
Show solution
Solution
Psyllium, derived from the psyllium seed, is effective in lowering cholesterol.
Correct Answer:
A
— Psyllium
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Q. Which plant-derived substance is known to lower cholesterol levels?
A.
Beta-glucans
B.
Tannins
C.
Saponins
D.
Alkaloids
Show solution
Solution
Beta-glucans, found in oats and barley, are known to help lower cholesterol levels.
Correct Answer:
A
— Beta-glucans
Learn More →
Q. Which plant-derived substance is often used to treat anxiety and promote relaxation?
A.
Valerian root
B.
Echinacea
C.
Ginger
D.
Peppermint
Show solution
Solution
Valerian root is commonly used in herbal medicine for its calming effects and ability to reduce anxiety.
Correct Answer:
A
— Valerian root
Learn More →
Q. Which plant-derived substance is used to lower cholesterol levels?
A.
Psyllium
B.
Caffeine
C.
Tannins
D.
Saponins
Show solution
Solution
Psyllium, a soluble fiber from the psyllium plant, is effective in lowering cholesterol.
Correct Answer:
A
— Psyllium
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