Practice free Zoology NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
The presence of external ears or pinnae is a characteristic feature of:
The NCERT text for Mammalia states: 'External ears or pinnae are present.'
Which of the following mammal examples belongs to the genus Panthera?
The examples provided include 'Panthera tigris (Tiger), Panthera leo (Lion)'. Thus, Panthera leo is an example from genus Panthera.
Mammals regulate their body temperature, meaning they are:
The NCERT text for Mammalia states: 'They are homoiothermous.' Homoiothermous means warm-blooded, capable of maintaining a constant body temperature irrespective of the external environment, contrasting with poikilothermous (cold-blooded).
The vertebral column in mammals, such as humans, is primarily composed of how many serially arranged units?
The 'LOCOMOTION_AND_MOVEMENT' chapter states: 'Our vertebral column (Figure 17.7) is formed by 26 serially arranged units called vertebrae and is dorsally placed.'
The vertebral column protects the spinal cord, supports the head, and serves as the point of attachment for:
The 'LOCOMOTION_AND_MOVEMENT' chapter states: 'The vertebral column protects the spinal cord, supports the head and serves as the point of attachment for the ribs and musculature of the back.'
In which subphylum are protochordates exclusively marine?
The NCERT text states: 'Subphyla Urochordata and Cephalochordata are often referred to as protochordates and are exclusively marine.'
Which of the following substances are actively reabsorbed in the renal tubules?
The context states: 'Substances like glucose, amino acids, Na+, etc., in the filtrate are reabsorbed actively…'. Nitrogenous wastes are absorbed by passive transport, and H+, K+, and ammonia are secreted, not primarily reabsorbed actively in bulk.
What percentage of the glomerular filtrate is reabsorbed by the renal tubules daily?
The passage highlights: 'A comparison of the volume of the filtrate formed per day (180 litres per day) with that of the urine released (1.5 litres), suggest that nearly 99 per cent of the filtrate has to be reabsorbed by the renal tubules.'
Which segment of the nephron is primarily responsible for the reabsorption of nearly all essential nutrients, and 70-80 percent of electrolytes and water?
The text states: 'Proximal Convoluted Tubule (PCT): PCT is lined by simple cuboidal brush border epithelium which increases the surface area for reabsorption. Nearly all of the essential nutrients, and 70-80 per cent of electrolytes and water are reabsorbed by this segment.'
Tubular secretion is an important step in urine formation because it primarily helps in:
The context mentions: 'Tubular secretion is also an important step in urine formation as it helps in the maintenance of ionic and acid base balance of body fluids.'.
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The bank mixes NEET previous year questions (PYQs) with practice questions, each tagged with its exam appearances where applicable.