Arrange the following in a logical sequence:
(a) Australopithecus, Cro-Magnon, Homo erectus, Neanderthal man.
(b) Pupil, Aqueous humour, Retina, Vitreous humour.
(c) Effector, Receptor, Motor neuron, Sensory neuron.
(d) Loop of Henle, Distal convoluted tubule, Bowman’s Capsule, Proximal convoluted tubule.
(e) Water vapour, Soil water, Leaves, Ascent of Sap.
(a) Australopithecus → Homo erectus → Neanderthal man → Cro-Magnon
(b) Aqueous humour → Pupil → Vitreous humour → Retina
(c) Receptor → Sensory neuron → Motor neuron → Effector
(d) Bowman’s Capsule → Proximal convoluted tubule → Loop of Henle → Distal convoluted tubule
(e) Soil water → Ascent of Sap → Leaves → Water vapour
More ICSE Moderate level questions
Name the following: (a) Unicellular outgrowths of the epidermis of roots. (b) The defect of the eye in which some parts of an object are focused while other parts appear blurred. (c) The tropic movement in response to chemicals. (d) The main nitrogenous waste in the human body. (e) The attachment of the fertilized ovum to the wall of the uterus.
Match the items in Column I with those in Column II: Column I Column II Leydig cells Lack of thyroxine in children Stoma 12 pairs Ova Testosterone Cranial nerve Diffusion of respiratory gases Cretinism Haploid cells 31 pairs Diploid cells
Write any two limitations of using a Ganong's Potometer to demonstrate the uptake of water.
Assertion: The sympathetic nervous system prepares the body for violent action. Reason: The sympathetic nervous system accelerates the heartbeat. (a) Both Assertion and Reason are true. (b) Assertion is true but Reason is false. (c) Assertion is false but Reason is true. (d) Both Assertion and Reason are false.
Mohan is fond of playing basketball. His concentration is on shooting the ball into the opponent’s basket as given in the picture. (a) Which part of the brain helps Mohan to concentrate in putting the ball into the basket? (b) Name the sense organ that helps to gauge the distance between the ball and the basket. (c) Name the part of the brain that co-ordinates all the voluntary muscles of his body.
A teacher drew the diagram of heart on the blackboard and told the students to copy it in their notebooks. Mahesh couldn’t see the diagram clearly as it appeared blurred to him. (a) Name the defect of the eye Mahesh is suffering from. (b) Where is the image formed in this defect? (c) Mahesh consults an eye doctor and is prescribed suitable lenses to correct the defect. Which type of lens do his spectacles have?
Read the explanations given below and name the structures: (a) The canal through which the testes descend down into the scrotum just before the birth of a male baby. (b) The part of the brain that regulates the peristaltic movement of the alimentary canal. (c) A structure that collects the soundwaves and conducts them through the external auditory canal. (d) The point of attachment of two chromatids of a chromosome. (e) Regulation of the opening and closing of stomata.
Structures shown: Renal medulla, Renal artery, Renal vein, Pelvis, Ureter and Renal cortex. Structure Label Function (a) Has Malpighian capsules (b) Carries oxygenated blood (c) Transports urine to urinary bladder (d) Has Henle's loops (e) Carries deoxygenated blood (f) Receives urine which flows into ureter Example: Pelvis - (f)
Give the biological/technical terms for the following: (a) The tropic movement wherein the tendrils of a pea plant twine around a support. (b) A defect in our eye in which some parts of the object are in focus while the other parts are blurred. (c) The type of waste generated in hospitals and pathological laboratories. (d) The surgical technique for females that can be used to prevent pregnancy. (e) The evolutionary process by which new species arise from the existing one.
Name the following: (a) The fully developed part of the ovary containing a mature ovum. (b) A waxy layer on the upper epidermis of leaves meant to reduce Transpiration. (c) The ear ossicle which opens into the oval window of Cochlea. (d) The physiological process which is the starting point of all food chains. (e) An insect which is a classic example of natural selection due to industrial melanism.
Arrange the terms in each group in the correct order. Write them in a logical sequence beginning with the term that is underlined. (a) Palisade cells, Cuticle, Upper epidermis, Spongy cells. (b) Hepatic portal vein, Stomach, Hepatic vein, Liver. (c) Cyton, Dendrites, Synaptic cleft, Axon endings. (d) Insulin release, High blood sugar, Lowers blood sugar, Stimulates glucose uptake from blood. (e) Sperm duct, Seminiferous tubule, Epididymis, Efferent ducts.
Bharat woke up late in the morning and missed the school bus. This situation stimulated the nerves of the sympathetic system which resulted in (a) Constriction of Coronary arteries (b) Muscle relaxation (c) Decrease in Respiration rate (d) Bronchodilation
