Question

Examine the figure given below and select the right option giving all four parts ( A,B,C and D) correctly identified.

(a) (A) Archegoniophore, (B) Female thallus, (C) Gemma cup, (D)Rhizoids
(b) (A) Archegoniophore, (B) Female thallus, (C) Bud, (D) Foot
(c) (A) Seta, (B) Sporophyte, (C) Protonema, (D) Rhizoids
(d) (A) Antheridiophore, (B) Male thallus, (C) Globule, (D) Roots

Answer 1

Marchantia which is also called liverwort is dioecious in nature and is heterothallic. This implies it's two distinct male and feminine plant.s a plant that belongs to the kingdom of Bryophytes.

Complete step by step answer: The female thallus has the female sex organs and is called Archegonia on the stalk or special kid of branches which are called the Archegoniophore The female gametangiophore is named Archegoniophore. It grows up from the plant structure which consists of a stalk and an archegoniate head with pendant (hanging) lobes or fingers. The plant life plant body is named a plant structure, which suggests that it lacks vascular tissue xylem and phloem and so doesn't have a true stem, true leaf, or true root. The reproductive structure is cup-like structures containing gemmae. The gemmae are little discs of haploid tissue, and as we know they’re responsible for directly making new gametophytes. They're seen to spread from the reproductive structure by precipitation or rainfall. Rhizoids are hair-like protuberances that stretch from the lower cuticular cells of bryophytes, division, and pteridophytes. They're similar in structure and performance to the basis of hairs of tube land plants. Rhizoids absorb water by capillarity, during which water moves up between threads of rhizoids.

Hence, option A which is (A) Archegoniophore, (B) Female thallus, (C)Gemma cup, (D)Rhizoids
is the correct answer.

Note: Marchantia falls under the division Bryophyta within the kingdom. The mature sporogonium consists of three differentiated parts which are foot, seta, and capsule. Marchantia is a genus of nonvascular organism plants that consists of a bunch of liverworts. It shows differentiation and might be divided into- a higher assimilative half and lower storage give a definite higher stratum with air channels. In reproduction, the plant part (haploid) has little cup-like structures referred to as gemmae cups.