Question

write characteristics of Lichen ​

Answer 1

$\huge\mathfrak\red{ANSWER}$

✔A lichen is structurally organised entity consisting of the permanent association of a fungus and an algae.

✔The fungal component of lichen is called Mycobiont and algal component is called phychobiont.

✔Both Mycobiont and phychobiont live in symbiotic association.

For example:

➡Yeast

➡ Mushroom

Answer 2

Answer:

Structure of Thallus in Lichens:

The plant body of lichen is thalloid with different shapes. They are usually grey or greyish green in colour, but some are red, yellow, orange or brown in colour.

Lichens have a body called a thallus, an outer, tightly packed fungal layer called a cortex, and an inner, loosely packed fungal layer called a medulla . Lichens use hyphal bundles called rhizines to attach to the substrate.

Explanation: