The type of placentation seen in Argemone and Primrose are respectively
Axile and free-central
Parietal and free-central
Parietal and basal
Marginal and free-central
Marginal and free-central
Consider the following characters with respect to the gynoeciun of Fabaceae and choose the correct options given below.
(A) Ovary monocarpellary
(B) Many styles
(C) Placenta swollen
D) Superior ovary
(E) Axile placentation
(A), (D) and (E) only
(D) and (E) only
(A) and (B) Only
(A) and (D) only
(A) and (D) only
Which of the following characters are not applicable to the anatomy of dicot stem and choose the correct options given below.
(A) Collenchymatous hypodermis
(B) Polyarch xylem
(C) Presence of casparian strips on the endodermis
(D) Open vascular bundle
(E) Presence of medullary rays
(A), (D) and (E) only
(B) and (C) only
(B) and (E) only
(A), (B) and (C) only
(A), (B) and (C) only
Which of the followings are the characteristic features of Solanaceae?
(A) Exstipulate leaves
(B) Persistent calyx
(C) Racemose inflorescence
(D) Unilocular ovary
(E) Fruits are either berry or capsule
(A), (B) and (E) are correct
(A), (C) and (D) are correct
(A) only is correct
(B) only is correct
(B) only is correct
Pick out the wrong statement
Gymnosperms lack vessels in their xylem.
The cell wall of collenchyma is made up of cellulose, hemicellulose and pectin
The first formed primary xylem elements are called protoxylem
The cell wall of parenchyma is made up of pectin.
The cell wall of parenchyma is made up of pectin.
Which of these characters does/do not apply to the vascular bundle of monocot stem?
I. Conjoint
II. Endarch protoxylem
III. Open
IV. Phloem parenchyma is absent
I and II only
II and III only
III and IV only
III only
III only
When one wood is lighter in colour with a lower density, the other wood is darker with higher density. They are
Spring wood and autumn wood
Heart wood and late wood
Spring wood and early wood
Sap wood and spring wood
Sap wood and spring wood
Which of the following part of dicot root is made up of cells with suberin deposition in tangential as well as radial walls?
Epidermis
Endodermis
Cortex
Pericycle
Pericycle
Choose the matched ones.
(A) Vibrio - Rod like bacteria
(B) Mesosome - Helps in cell wall formation
(C) Smooth endoplasmic - Synthesis of lipid reticulum
(D) Vacuoles - Rich in hydrolytic enzymes
(B) and (C) only
(A) and (D) only
(A), (B) and (C) only
(B) and (D) only
(B) and (D) only
Which of these organelles does not contain ribosomes?
I. Rough endoplasmic reticulum
II. Chloroplast
III. Golgi apparatus
IV. Mitochondria
I and II only
I and IV only
IV only
III only
III only
D.
III only
Golgi apparatus does not contain ribosomes.