CBSE Class 11   CBSE Class 11 Biology

Old people have weak immune system (2)
Give the name of the endocrine gland that produces calcitonin (2)
Terrestrial animals are generally either ureotelic or uricotelic, not ammonotelic, why? (2)
State whether true of false (2)
Explain the process of micturition (2)
What will happen if the stretch receptors of the urinary bladder (2)
How does ADH regulate body fluid volume? Explain (2)
Discuss the regulation of kidney function by the heart (2)
State the importance of counter current systems in renal functioning (2)
How do pigments gather in the body? Are they excreted? If so, how? (2)
Describe the role of alcohol and caffeine in the concentration of urine (2)
Which parts of nephron show permeability to urea in the counter current mechanism (2)
Give the name of the parts of Henle's loop that are responsible for the (2)
The glomerular filtrate in the loop of Henle gets concentrated in the descending (2)
During the group study at Vishaka's home, Anil got a severe pain in his stomach (2)
Give full form of ANF, Name the organ that secretes it (2)
How counter current system operates in kidney and what is its function? (2)
How is glomerular filtrate hypertonic and hypotonic in descending and (2)
(i) Study the given structure carefully and label the parts given as A, B, C, D and E (2)
During the biology class, teacher taught that water should be conserved (2)
Give the name of the layers through which the glomerular capillary (2)
What is ureotelism? Describe the process of formation of urea (2)
Name the two components of nephron that together form Malpighian (2)
Give the name of the excretory organ present in the following animals (2)
Give the name of the two actively transported substances in glomerular filtrate (2)
An abnormal type of secondary growth is called anomalous secondary growth (2)
Deciduous plants shed their leaves during hot summer or autumn (2)
What is the commercial source of cork? How is it formed in the plant? (2)
Describe briefly the anatomy of a dicot root (2)
Describe the internal structure of a dorsiventrai leaf with (2)