Plant Ecological Adaptations - Xerophytes, Hydrophytes, and Halophytes
Questions about plant adaptations to various environmental conditions including desert, aquatic, and saline habitats, along with some angiosperm anatomy and classification concepts
Questions
Development of microsporangium in angiosperms and gymnosperms is of.
- Eusporangiate type
- Leptosporangiate type
- Monosporic type
- Tetrasporic type
In angiosperms normally after fertilization.
- The zygote divides earlier than the primary endosperm nucleus
- The primary endosperm nucleus divides earlier than the zygote
- Both the zygote and primary endosperm nuclei divide simultaneously
- Both the zygote and primary endosperm nuclei undergo a resting period
Which of the following Angiosperm families possess vessels in the wood?
a. Magnoliaceae
b. Degeneriaceae
c. Winteraceae
d. Annonaceae
Select the correct answer.
- $1, 2$ and $3$
- $1, 3$ and $4$
- $1, 2$ and $4$
- $2$ and $4$
Gnetum resembles angiosperms in showing which one of the following types of female gametophyte development?
- Monophonic
- Bishopric
- Endymion
- Tetrasporic
Monocot root differs from dicot root in having
- No vascular bundles
- Well developed pith
- Radially arranged vascular bundles
- Open vascular bundles
Plants whose seeds have more than one seed leaf (cotyledon) are
- Ferns
- Dicots
- Monocots
- Moss
Both a dicot root and monocot root possess six vascular bundles. The two can be distinguished by.
- Presence of lysigenous cavity in monocot root
- Occurrence of more metaxylem vessels in dicot root
- Presence of exarch condition in monocot root
- Outline of vessels
Monocot root differs from dicot root in having.
- Open vascular bundles
- Scattered vascular bundles
- Well developed pith
- Radially arranged vascular bundles
Which of the following plants have two seed leaves?
- Rice
- Maize
- Green gram
- None of these
Pick the odd one out
- Paddy
- Groundnut
- Maize
- Peas