Which plant tissue transports organic solutes from leaves to other parts? MCQ with Answer and Explanation

Which plant tissue transports organic solutes from leaves to other parts?
A. Collenchyma
B. Phloem
C. Xylem
D. Sclerenchyma
Answer: Option B
Solution (By JKSSB Mock Tests)
Phloem is the vascular tissue responsible for translocation of photosynthates (mainly sucrose) from source (leaves) to sink (roots, fruits, growing regions) via sieve tubes and companion cells. Xylem transports water and minerals upward. Collenchyma and sclerenchyma are mechanical tissues. Phloem is alive at maturity.

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Practice More Biology Questions

Question #1
Which structure is common to both prokaryotic and eukaryotic cells?
A. Ribosomes
B. Mitochondria
C. Golgi apparatus
D. Nuclear membrane

Correct Answer: Option A


Explanation:
Ribosomes are the only organelles common to both prokaryotes and eukaryotes, though sizes differ: 70S in prokaryotes, 80S in eukaryotes. Nuclear membrane, mitochondria, and Golgi are absent in prokaryotes. Ribosomes are the site of protein synthesis. This commonality supports the universal role of protein synthesis in all life forms. Mycoplasma, the smallest prokaryote, also has ribosomes.

This question belongs to: Science Biology
Question #2
The organelle that is the site of glycolysis is the:
A. Golgi body
B. Cytoplasm
C. Nucleus
D. Mitochondria

Correct Answer: Option B


Explanation:
Glycolysis, the breakdown of glucose to pyruvate, occurs in the cytoplasm of cells. The Krebs cycle and oxidative phosphorylation occur in mitochondria.

This question belongs to: Science Biology
Question #3
The scientist who coined the term 'cell' was:
A. Robert Brown
B. Antonie van Leeuwenhoek
C. Robert Hooke
D. Rudolf Virchow

Correct Answer: Option C


Explanation:
Robert Hooke, in 1665, observed thin slices of cork under a compound microscope and saw box-like structures he named 'cells'. Leeuwenhoek observed live cells, Brown discovered the nucleus, Virchow proposed cells arise from cells.

This question belongs to: Science Biology