Plant Anatomy (GATE - XL)
Description: GAte | |
Number of Questions: 15 | |
Created by: Rachana Sahu | |
Tags: GAte Anatomy of Root Vascular System Plant cell Structure Stem and Leaves Plant Anatomy Meristems |
Which of the following statements is/are true regarding meristematic tissue?
P. Meristematic tissue cells have retaining ability. Q. Meristematic tissue cells are isodimetric and have bigger vacuoles than permanent tissue cells. R. The rate of respiration in meristematic tissue cells is low.
Which of the following characters are absent in monocotyledon roots?
A. Diarch vascular bundles B. Pith C. Hexarch vascular bundles D. Cambium
The ‘stele concept’ for root and shoot was given by
Which of the following are modifications of tap root?
- Potato
- Sweet potato
- Carrot
- Ginger
Which of the following are sub-aerial modifications of stem?
- Bulb
- Rhizome
- Runner
- Stolon
- Sucker
Which of the following statements is/are true about xylem?
P. Primary cell wall of xylem gives support to the plant. Q. The walls of tracheids are made up of lignin. R. Parenchyma cells of xylem provide mechanical support, defense and water transport.
Which of the following statements is/are false?
A. The waxy substance associated with the wall of cork cells is suberin. B. Abnormal secondary growth is observed in Withania. C. Intercalary meristem results in secondary growth.
Identify the incorrectly matched pair.
Root cap is not found in
- lithophytes
- hydrophytes
- xerophytes
Assertion (A): Sclerenchymatous cells are dead and lack protoplasm. Reason (R): They are the longest cells of the plant kingdom.
Select the correct option regarding the statements given above.
Match Group - I with Group - II and select the correct answer using the codes given below.
Group - I | Group - II |
P. Leeuwenhoek | 1. first saw and described a living cell |
Q. Kolliker | 2. named endoplasmic reticulum |
R. Porter | 3. discovered ribosomes |
S. Robinson and Brown | 4. firstly observed mitochondria |
Assertion (A): The cells of sapwood take part in conduction of water and storage of food. Reason (R): During the growth process, the rings of sapwood gradually process and gradually convert into heartwood.
Select the correct option regarding the statements given above.
Which of the following statements is not correct?
Assertion (A): Monocotyledonous plants have no secondary growth. Reason (R): Secondary growth takes place by the activity of cambium and cork cambium.
Select the correct option regarding the statements given above.
Assertion (A): According to apical cell theory, apical meristem is made up of a single cell called apical cell whose activity leads to the formation of the entire body of plant. Reason (R): The apical cells situated at root tip and shoot tip are responsible for growth of root and stem.
Choose the correct option regarding the statements given above.