Question:
Read the following statements A and B.
A : Many organs of aquatic plants float in water.
B : Large air gaps are present, in the collenchyma tissues of lotus leaf.
Select the correct answer.
Read the following statements A and B.
A : Many organs of aquatic plants float in water.
B : Large air gaps are present, in the collenchyma tissues of lotus leaf.
Select the correct answer.
Updated On: Apr 18, 2024
- Statement A is correct and B is wrong
- Statement B is correct and A is wrong.
- Statements A and B both are correct.
- Statements A and B both are wrong.
Hide Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Organs of aquatic plants are made of a special parenchyma tissue known as aerenchyma. It consists of a network of parenchyma cells which enclose very large air cavities. These air cavities store gases and make the aquatic plants light and buoyant. Collenchyma is a simple permanent tissue with pectocellulose thickening in its wall and no intercellular gaps.
Was this answer helpful?
0
0
Top Questions on Anatomy of Dicotyledonous and Monocotyledonous Plants
- Tegmina in cockroach arises from
- NEET (UG) - 2022
- Biology
- Anatomy of Dicotyledonous and Monocotyledonous Plants
- In the taxonomic categories which hierarchical arrangement in ascending order is correct in the case of animals?
- NEET (UG) - 2022
- Biology
- Anatomy of Dicotyledonous and Monocotyledonous Plants
- Stalk of the Stamen is
- KCET - 2022
- Biology
- Anatomy of Dicotyledonous and Monocotyledonous Plants
- Kranz anatomy can be seen in
- KCET - 2022
- Biology
- Anatomy of Dicotyledonous and Monocotyledonous Plants
- The transverse section of a plant shows following anatomical features:
(a) Large number of scattered vascular bundles surrounded by bundle sheath.
(b) Large conspicuous parenchymatous ground tissue.
(c) Vascular bundles conjoint and closed.
(d) Phloem parenchyma absent.
Identify the category of plant and its part- NEET (UG) - 2020
- Biology
- Anatomy of Dicotyledonous and Monocotyledonous Plants
View More Questions
Questions Asked in KCET exam
- Ten identical cells each emf 2V and internal resistance 1Ω are connected in series with two cells wrongly connected. A resistor of 10Ω is connected to the combination. What is the current through the resistor?
- KCET - 2023
- Cells in Series and in Parallel
- The speed of sound in an ideal gas at a given temperature T is v. The rms speed of gas molecules at that temperature is vrms. The ratio of the velocities v and vrms for helium and oxygen gases are X and X' respectively. Then \(\frac{X}{X'}\) is equal to
- KCET - 2023
- Thermodynamics
- If \(p(\frac{1}{q}+\frac{1}{r}),q(\frac{1}{r}+\frac{1}{p}),r(\frac{1}{p}+\frac{1}{q})\) are in A.P., then p, q, r
- KCET - 2023
- Arithmetic Progression
- A stretched wire of a material whose Young's modulus Y = 2 × 1011 Nm-2 has Poisson's ratio of 0.25. Its lateral strain εl = 10-3. The elastic energy density of the wire is
- KCET - 2023
- mechanical properties of solids
- A metallic rod of length 1 m held along east-west direction is allowed to fall down freely. Given horizontal component of earth’s magnetic field BH = 3 × 10-5 T. The emf induced in the rod at an instant t = 2s after it is released is ( Take g = 10 ms-2 )
- KCET - 2023
- Faradays laws of induction
View More Questions
Concepts Used:
Anatomy of Dicotyledonous and Monocotyledonous Plants
Dicot Root:
- Dicot plants have the taproot system.
- The outermost layer is called the epidermis. The epidermal cells sometimes project out which appear as the root hairs.
- The epidermis is followed by the multi-layered cortex, loosely made of the parenchyma cells with intercellular spaces.
- The inner layer of the cortex is called endodermis, which is tightly packed by the barrel shaped-cells.
- Endodermis is followed by pericycle, which are a few layers of thick-walled parenchyma cells.
- In dicots, the central pith is not distinct.
- There are two to four xylem and phloem.
- The xylem and phloem are remarked by a layer of parenchymatous cells known as conjunctive tissue.
Monocot Root:
Monocot roots do not show much difference in the anatomy from that of the dicot roots.
- Monocot plants possess an adventitious root system.
- As in the dicots, the epidermis forms the outermost layer, followed by cortex, pericycle, endodermis, vascular bundles (xylem and phloem) and pith (random order).
- Pith is conspicuous and large.
- The number of xylem in a monocot is six or more.
- Secondary growth is not seen in the monocot plants.