Online Test — Anatomy of Flowering Plants
15 Questions • 15 min • Chapter MCQ
15:00
Question 1 of 15
The study of the internal structure of plants is:
Morphology
Anatomy
Ecology
Taxonomy
Explanation: Anatomy studies internal structure.
Question 2 of 15
Tissues with actively dividing cells are:
Permanent tissues
Meristematic tissues
Complex tissues
Cork
Explanation: Meristematic tissues consist of dividing cells responsible for growth.
Question 3 of 15
The apical meristem is responsible for increase in:
Girth
Length (primary growth)
Cork
Pith only
Explanation: Apical meristems at the tips increase length (primary growth).
Question 4 of 15
Thin-walled living tissue mainly meant for storage is:
Sclerenchyma
Collenchyma
Parenchyma
Xylem
Explanation: Parenchyma is thin-walled, living and stores food.
Question 5 of 15
Dead, lignified cells giving mechanical strength form:
Parenchyma
Collenchyma
Sclerenchyma
Phloem
Explanation: Sclerenchyma provides mechanical strength.
Question 6 of 15
Xylem and phloem are examples of ___ tissues.
Simple
Complex (conducting)
Meristematic
Cork
Explanation: Xylem and phloem are complex (conducting) tissues.
Question 7 of 15
Xylem mainly conducts:
Food downward
Water and minerals upward
Hormones
Oxygen
Explanation: Xylem conducts water and minerals upward.
Question 8 of 15
In a dicot stem, the vascular bundles are:
Scattered, closed
Arranged in a ring, open (with cambium)
Absent
Only in the pith
Explanation: Dicot stem bundles are in a ring and open (cambium present).
Question 9 of 15
Monocot stems usually show no secondary growth because their bundles are:
Open
Closed (no cambium)
In a ring
Very large
Explanation: Monocot bundles are closed (lack cambium), so no secondary growth.
Question 10 of 15
A dorsiventral leaf has mesophyll differentiated into palisade and:
Cork
Spongy parenchyma
Sclerenchyma
Cambium
Explanation: A dorsiventral (dicot) leaf has palisade and spongy mesophyll.
Question 11 of 15
Secondary growth increases the ___ of a plant.
Length
Girth (thickness)
Leaf number
Flower size
Explanation: Secondary growth increases girth via lateral meristems.
Question 12 of 15
The vascular cambium forms secondary xylem on the ___ side.
Outer
Inner
Upper only
It forms none
Explanation: Secondary xylem (wood) is added to the inner side.
Question 13 of 15
Small openings in the bark that permit gas exchange are:
Stomata
Lenticels
Hydathodes
Sieve pores
Explanation: Lenticels in the cork allow gas exchange.
Question 14 of 15
One annual ring is formed by:
One ring each of spring wood and autumn wood
Cork only
Two springs
Phloem only
Explanation: Spring wood + autumn wood make one annual ring per year.
Question 15 of 15
The darker, harder, non-conducting central wood that gives support is:
Sapwood
Heartwood
Cork
Phloem
Explanation: Heartwood is the central, non-functional wood that gives support.