Diversity of Life and Classification — BIOLOGY STD 9 — Question

Define the following: Pathogen

Describe the term: extensor

Name the part of the cell concerned with the following :
Synthesis of proteins

Give the one-word substitute for the following : Anti-rickets vitamin.

If you leave a piece of moist bread covered under a small bell jar at a warm place, mould grows on it in a few days. Answer the following with reference to this observation:
How does bread mould obtain nourishment? What type of nourishment is it- epiphytic, autotrophic, parasitic symbiotic, or saprophytic?

Deficiency of which vitamin causes night-blindness?

In order to study and prove a particular physiological process in plants, the following experiment was set up. Study the same and then answer the question that follow:

Represent the physiological process named in question 4.1 in the form of a chemical equation.

Name the following :
The layer of the endosperm of maize rich in protein.

Name the following:
Two simple tissues which provide mechanical support to plants

Which chemical compound inside a cell can be termed "Currency of Energy"?