31.

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