Animal Kingdom — BIOLOGY STD 11 Science — Question

What is the role of afferent nerve fibres in the nervous system?

Name two sulphur-containing vitamins.

I What makes dough spongy when it is kept over night?

Name two elements that are immobile in plants.OR
Name two elements which produce deficiency symptoms first in younger leaves.

In which cell organelle does the Krebs' cycle take place?

Write the name of the respiratory organ in prokaryotic cell.

Identify the neurohormone that has its functioning in inhibiting the secretion of growth hormone from anterior lobe of pituitary.

Which organ absorbs the presence of lacteal fat in the duodenal bulb?

Who discovered viroids? Name a plant disease caused by viroids.

Name one ornamental plant each of family.Solanceae and Fabaceae.