Which of the following is a bacterial disease? MCQ with Answer and Explanation

Which of the following is a bacterial disease?
A. Typhoid
B. Malaria
C. AIDS
D. Influenza
Answer: Option A
Solution (By JKSSB Mock Tests)
Typhoid is caused by the bacterium Salmonella typhi, transmitted through contaminated food and water. Influenza (flu) is a viral disease, malaria is protozoan (Plasmodium), AIDS is viral (HIV). Common bacterial diseases include cholera, tuberculosis, diphtheria, tetanus. Typhoid fever is characterized by prolonged fever, headache, and rose spots on the skin. Widal test is used for diagnosis.

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Practice More Biology Questions

Question #1
In the endocrine system, the hormone 'Oxytocin' is synthesized in the hypothalamus but is stored and released by the:
A. Thyroid gland
B. Anterior pituitary
C. Posterior pituitary (Neurohypophysis)
D. Adrenal medulla

Correct Answer: Option C


Explanation:
Oxytocin (and ADH/vasopressin) are peptide hormones synthesized by the neurosecretory cells of the hypothalamus (supraoptic and paraventricular nuclei). They are transported down the axons of these neurons and stored in the nerve terminals of the posterior pituitary (neurohypophysis). Upon neural stimulation, they are released directly into the bloodstream from the posterior pituitary. The anterior pituitary synthesizes its own hormones.

This question belongs to: Science Biology
Question #2
The salivary gland located below the tongue is the:
A. Submandibular gland
B. Parotid gland
C. Sublingual gland
D. Lacrimal gland

Correct Answer: Option C


Explanation:
The sublingual glands are the smallest of the three paired salivary glands, located under the tongue. The parotid is near the ear, submandibular under the jaw.

This question belongs to: Science Biology
Question #3
What is the botanical name of the common mango plant?
A. Mangifera indica
B. Musa paradisiaca
C. Citrus sinensis
D. Ficus benghalensis

Correct Answer: Option A


Explanation:
Mangifera indica is the scientific name of mango. Musa paradisiaca is banana, Citrus sinensis is orange, Ficus benghalensis is banyan tree. The genus Mangifera refers to mango, 'indica' indicates its origin in India. It belongs to the family Anacardiaceae. Mango is the national fruit of India. Scientific naming follows binomial nomenclature, with genus and species epithet.

This question belongs to: Science Biology