Economic Importance of Fungi
abida(a) Role of fungi in Agriculture or crop production Decomposition and humus formation: Fungi decompose the dead animals and plants. Fungi change them into humus. rums is decomposed organic matter.…
TYPE 3: AGARICUS (Mushrooms)
The members of this genus are commonly called mushrooms. Mushrooms grow on soil. They are abundantly found on soil with decry plant material and moisture. The specie ,4garietts campsites is…
What is a Jackobson’s organ
rubabOlfactory senses are better developed in reptiles than in amphibians. In addition to having more olfactory epithelium, most reptiles (except crocodilians) possess blind-ending pouches that open into the mouth These …
PRIMARY GROWTH IN STEM
sanaPrimary growth takes place by the activity of apical meristematic cells of stem. Primary growth passes through following phases. Phase of Cell division: The numbers of cells are increased by…
Write a note on taste buds
Taste buds are barrel-shaped clusters of chemoreseptor cells called gustatory cells and supporting cells arranged like alternating segments of an orange. Extending from each receptor cell are gustatory hairs that…
TYPE 2: PUCCINIA (Rust)
Occurrence Puccinia is large genus. It has several obligatory parasitic species.tritici is a parasite of wheat. It completes its life cycle in two different hosts: wheat and barely. Thus it…
What is rhodopsin, and how does it functions?
What is rhodopsin, and how does it functions? Ans. Both rods and cones contain light sensitive pigments known as rhodopsins. Each rhodopsin molecule consists of a large protein, opsin, which…
Structure of Stem (Parts of Stem)
The internal structure of the stem is more complex. Stem is differentiated into nodes and internodes. The leaves are inserted on the nodes. The arrangement of leaves on the 'nodes…
BASIDIOMYCOTAi
TYPE 1: USTILAGO (Smut) Occurrence Usti.ago is parasite on the grasses like wheat. It is commonly called smut. It attacks on the ovaries of grasses. Sometimes, it completely destoy the…
What animals possess a median eye?
Vision is the dominant sense in most reptiles, and their eyes are similar to those of amphibians. Upper and lower eyelids, a nictitating membrane, and a blood sinus protect and…