HELLO STUDENTS: DAY- 10 Evening
1.IMPORTANT CORRECT SEQUENCES OF STRUCTURES AND STEPS IN BIOLOGICAL CONCEPTS:
*Identify the correct sequence of events in a cardiac cycle:
Atrial systole>Ventricular systole>Joint diastole
*The cardiac impulse is initiated and conducted further up to ventricle.The correct sequence of conduction of impulse is :
SA Node >AV Node >AV Bundle>Purkinje fibres
*What is the right sequence of bones in the ear ossicles of a mammal starting from the tympanum inwards?
Malleus>Incus>Stapes
*Which of the following is showing the correct sequential order of vertebrae in the vertebral column of human beings?
Cervical>thoracic>lumbar>sacral>Coccygeal
*Identify the correct sequence of organs/regions in the organisation of human ear as an auditory mechanoreceptor organ:
Pinna>Auditory canal>Tympanic membrane>Malleus>Incus>Stapes>Cochlea>Auditory nerve
*Which of the following layers are present in the adrenal cortex from inner to outer?
Zona reticularis>zona fasciculata>zona glomerulosa
*Arrange the following steps of mechanism of vision in order:
1) Focussing of visible light on retina
2)Light induces dissociation of the retinal from opsin
3)Change in structure of opsin
4)Change in membrane permeability
5) Potential differences are generated in photoreceptor cells
6) Generation of AP in ganglion cell through bipolar cells
7)Action potential is transmitted via optic nerve to visual cortex
8)At visual cortex,nerve impulses are analysed and the image formed on retina is recognised based on the earlier memory and experience.
*Starting from the innermost part ,the correct sequence of parts in an ovule are:
Egg>Embryo Sac>Nucellus>Integument
*In a typical, complete, bisexual and hypogynous flower,the arrangement of floral whorls on the thalamus from the outermost to the innermost is :
Calyx>Corolla>Androecium>and Gynoecium
*Which of the following is correct?
Proembryo>Globular embryo>Mature embryo
Mr.R.Soundarapandian, MSc, MEd, MPhil,
PG Asst Zoology
SIR MCTM Boys Higher Secondary School,
SIR MCTM Boys Higher Secondary School,
Purasawalkam Chennai-84.
Post a Comment