The figure shows a human urinary system with structure labelled A to D. Select option, which correctly identifies them and gives their characteristics and of function.
A - adrenal gland - located at the anterior part of kidney. Secrete catecholamines, which stimulate glycogen breakdown
B- pelvis -board funnel-shaped space inner to hilum, directly connected to loops of Henle
C - mediulla-inner zone of kidney and contains complete nephrons.
C - mediulla-inner zone of kidney and contains complete nephrons.
A.
A - adrenal gland - located at the anterior part of kidney. Secrete catecholamines, which stimulate glycogen breakdown
A - adrenal gland, B - Renal pelvis, C - Medulla, D - cortex.
Which one of the following statement is correct?
Hard outer layer of pollen is called intine
Sporogenous tissue is haploid
Endothecium produces the microspores
Endothecium produces the microspores
A diagram showing axon terminal and synapse is given. Identify correctly at least two of A-D.
|
A – Receptor |
C – Synaptic vesicles |
|
B – Synaptic connection |
D- K+ |
|
A – Neurotransmitter |
B- Synaptic cleft |
|
A – Neurotransmitter |
B- Synaptic cleft |
Parts A, B, C and D of the human eyes are shown in the diagram. Select the option, which gives correct identification along with its functions/ characteristics
A - retina - contains photoreceptors -rods and cones
B-blind spot- has only a few rods and cones
C - aqueous chamber - reflects the light which does not pass through the lens
C - aqueous chamber - reflects the light which does not pass through the lens
Read the following statements (IV) and answer the question which follows them
I. In liverworts, mosses and ferns gametophytes are free living.
II) Gymnosperms and some ferns are heterospores.
III) Sexual reproduction in Fucus, Volvox and Albugo is oogamous.
IV) The sporophyte in liverworts is more elaborate than that in mosses.
How many of the above statements are correct?
One
Two
Three
Three
The diagram given here is the standard ECG of a normal person. The P- wave represents the
Contraction of both the atria
initiation of the ventricular contraction
the beginning of the systole
the beginning of the systole
The figure shows a diagrammatic view of the human respiratory system with label A, B, C and D. Select the option. Which gives correct identification and main function and /or characteristic.
A - trachea - long tube supported by complete cartilaginous rings for conducting inspired air.
B - pleural membrane - surround ribs on both sides to provide cushion against rubbing
C - alveoli - thin walled vascular bag - like structure for exchange of gases
C - alveoli - thin walled vascular bag - like structure for exchange of gases
Figure shows schematic plan of blood circulation in human with labels A to D. Identify to label and give its function/s
A - pulmonary vein - takes impure blood from body parts,pO2 = 60 mmHg
B - pulmonary artery - takes blood from heart to lungs, pO2 = 90 mmHg
C - vena cava - takes blood from body parts to right auricle, pCO2 = 45 mmHg
C - vena cava - takes blood from body parts to right auricle, pCO2 = 45 mmHg
Age of tree can be estimated by
Its height of girth
biomass
number of annual rings
number of annual rings
