Which of the following tissues in plants is responsible for transportation of water and minerals? MCQ with Answer and Explanation

Which of the following tissues in plants is responsible for transportation of water and minerals?
A. Epidermis
B. Phloem
C. Xylem
D. Cortex
Answer: Option C
Solution (By JKSSB Mock Tests)
Xylem is a complex permanent tissue composed of tracheids, vessels, xylem parenchyma, and xylem fibers. It conducts water and dissolved minerals from roots to aerial parts unidirectionally. Phloem transports organic nutrients bidirectionally. Cortex is ground tissue for storage, epidermis provides protection. Xylem vessels are dead at maturity, with lignified walls.

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Practice More Biology Questions

Question #1
The technique used to measure the concentration of a solution based on light absorption is:
A. Electrophoresis
B. Centrifugation
C. Chromatography
D. Spectrophotometry

Correct Answer: Option D


Explanation:
Spectrophotometry measures the absorbance of light by a solution at a specific wavelength, which is proportional to the concentration of the absorbing substance (Beer-Lambert law).

This question belongs to: Science Biology
Question #2
Identify the correct statement about the cell wall:
A. Bacterial cell walls contain cellulose.
B. Plant cell walls contain cellulose.
C. Animal cells have a chitinous cell wall.
D. Fungal cell walls are made of peptidoglycan.

Correct Answer: Option B


Explanation:
Plant cell walls are primarily cellulose. Fungal walls contain chitin, bacterial peptidoglycan, animal cells lack a cell wall.

This question belongs to: Science Biology
Question #3
The phenomenon where a single gene influences multiple, seemingly unrelated phenotypic traits is known as:
A. Polygenic inheritance
B. Pleiotropy
C. Incomplete dominance
D. Epistasis

Correct Answer: Option B


Explanation:
Pleiotropy occurs when a single gene affects two or more distinct phenotypic traits. This happens because the gene product (protein) may be used in multiple biological pathways or expressed in different tissues. Examples include phenylketonuria (PKU), sickle cell anemia, and Marfan syndrome. Epistasis involves the interaction of different genes, polygenic inheritance involves multiple genes affecting one trait, and incomplete dominance is a single gene interaction.

This question belongs to: Science Biology