Which of the following parts of the brain does regulate pituitary gland?

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Which of the following parts of the brain does regulate pituitary gland?

AThalamus

BHypothalamus

CCerebellum

DCerebrum

Akhilesh ? Apr 16 '25 at 23:06

correct answer is: option b (Hypothalamus)
Explanation: The hypothalamus directly regulates the pituitary gland through hormonal and neural signals. It controls the release of hormones from the anterior pituitary and directly releases hormones via the posterior pituitary.

• Option a: Thalamus primarily relays sensory and motor signals to the cerebral cortex and regulates consciousness, sleep, and alertness, but it does not directly regulate the pituitary gland.
• Option b: Hypothalamus is directly connected to the pituitary gland and controls its hormone secretion, thus regulating many bodily functions.
• Option c: Cerebellum is primarily involved in motor control, coordination, and balance, and does not regulate the pituitary gland.
• Option d: Cerebrum is the largest part of the brain and is responsible for higher-level cognitive functions, sensory processing, and voluntary motor control, but it does not directly regulate the pituitary gland.

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Lime water becomes milky due to which of the following gases?

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Lime water becomes milky due to which of the following gases?

ACO₂

BO₂

CNO₂

DN₂

Akhilesh ? Apr 16 '25 at 23:06

correct answer is: option a (CO₂)
Explanation: Lime water, which is an aqueous solution of calcium hydroxide (\(Ca(OH)_2\)), turns milky when carbon dioxide (\(CO_2\)) gas is passed through it. This is because \(CO_2\) reacts with \(Ca(OH)_2\) to form calcium carbonate (\(CaCO_3\)), which is an insoluble white precipitate, causing the milky appearance.

• Option a: \(CO_2\) reacts with lime water (\(Ca(OH)_2\)) to form insoluble \(CaCO_3\), making it milky.
• Option b: \(O_2\) does not react with lime water to produce a milky appearance.
• Option c: \(NO_2\) reacts with lime water but does not produce a milky appearance. It forms calcium nitrite and calcium nitrate.
• Option d: \(N_2\) is generally unreactive and does not react with lime water to produce a milky appearance.

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The famous book written by the scholar Al-Biruni is

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The famous book written by the scholar Al-Biruni is

AKitab ul-Hind

BHindustani

CAl-Hindustani

DSher-e-Hind

Akhilesh ? Apr 16 '25 at 23:06

correct answer is: option a (Kitab ul-Hind)
Explanation: Al-Biruni, a renowned scholar, is best known for his book Kitab ul-Hind (also known as Ta'rikh al-Hind), which provides a detailed and insightful account of the Indian subcontinent in the 11th century. This book covers various aspects of Indian society, culture, religion, philosophy, science, and geography.

• Option a: Kitab ul-Hind is the correct answer as it is the well-known and widely recognized book authored by Al-Biruni.
• Option b: Hindustani is a language and not a book written by Al-Biruni.
• Option c: Al-Hindustani is not a known title of any work by Al-Biruni.
• Option d: Sher-e-Hind (Lion of India) is a title, potentially a honorific, and not a book written by Al-Biruni.

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Which Vitamin is popularly known as the 'sunshine vitamin'?

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Which Vitamin is popularly known as the 'sunshine vitamin'?

AVitamin A

BVitamin C

CVitamin D

DVitamin B

Akhilesh ? Apr 16 '25 at 23:06

correct answer is: option c (Vitamin D)
Explanation: Vitamin D is known as the 'sunshine vitamin' because the body can synthesize it when exposed to sunlight. Ultraviolet (UV) rays from the sun trigger Vitamin D synthesis in the skin. This makes it different from other vitamins that need to be obtained solely from diet or supplements.

• Option A: Vitamin A is important for vision, immune function, and cell growth.
• Option B: Vitamin C is an antioxidant that supports immune function and collagen production.
• Option D: Vitamin B is a complex of several vitamins involved in energy metabolism and nerve function.

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Malaria is caused by :

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Malaria is caused by :

APlasmodium

BFemale Anopheles mosquito

CCulex mosquito

DVirus

Akhilesh ? Apr 16 '25 at 23:06

correct answer is: option a [Plasmodium]
Explanation: Malaria is caused by the parasite Plasmodium, which is transmitted to humans through the bite of infected female Anopheles mosquitoes. The mosquito is the vector, not the cause of the disease.

• Option a: Plasmodium is the actual parasitic protozoan that infects humans and causes malaria.
• Option b: While female Anopheles mosquitoes transmit the Plasmodium parasite, they are not the cause of malaria themselves, but rather the vector.
• Option c: Culex mosquitoes are vectors for other diseases like West Nile virus and filariasis, but not malaria.
• Option d: Viruses cause diseases like the flu and common cold, but not malaria, which is a parasitic disease.

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