Amoebiasis is caused by which protozoan? MCQ with Answer and Explanation

Amoebiasis is caused by which protozoan?
A. Giardia lamblia
B. Plasmodium vivax
C. Trypanosoma brucei
D. Entamoeba histolytica
Answer: Option D
Solution (By JKSSB Mock Tests)
Amoebiasis, also known as amoebic dysentery, is an intestinal infection caused by the protozoan parasite Entamoeba histolytica. It is transmitted through ingestion of cysts in contaminated food or water. Symptoms include abdominal pain, diarrhea, and dysentery (bloody stools). It can also spread to the liver, causing amoebic liver abscesses.

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Biology Questions

Question #1
The condition caused by the accumulation of uric acid crystals in joints is:
A. Gout
B. Osteoporosis
C. Osteoarthritis
D. Rheumatoid arthritis

Correct Answer: Option A


Explanation:
Gout is a form of arthritis resulting from hyperuricemia and deposition of monosodium urate crystals in joints, causing intense pain and inflammation. It is often diet-related. Rheumatoid arthritis is autoimmune, osteoarthritis is degenerative, osteoporosis is loss of bone mass.

This question belongs to: Science Biology
Question #2
The process by which water enters the root hairs from the soil is:
A. Transpiration pull
B. Diffusion
C. Osmosis
D. Active transport

Correct Answer: Option C


Explanation:
Water moves from the soil (high water potential) into root hair cells (lower water potential due to solutes) by osmosis across the semipermeable membrane. Active transport is for minerals, transpiration pull is for upward movement.

This question belongs to: Science Biology
Question #3
Growth hormone is secreted by which part of the pituitary?
A. Anterior lobe
B. Intermediate lobe
C. Hypothalamus
D. Posterior lobe

Correct Answer: Option A


Explanation:
Growth hormone (somatotropin) is produced by the anterior pituitary. It promotes growth of bones, muscles, and other tissues. Deficiency causes dwarfism; excess causes gigantism or acromegaly.

This question belongs to: Science Biology