Practice free NEET NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
The yellow color of urine is due to:
While not explicitly stated in the provided text, general biological knowledge (consistent with NEET syllabus) attributes the yellow color of urine to urochrome, a pigment formed from the breakdown of hemoglobin.
Approximately how much urea is excreted by an adult human per day?
The NCERT states, 'On an average, 25-30 gm of urea is excreted out per day.'
Analysis of urine can help in the clinical diagnosis of:
The NCERT mentions, 'Analysis of urine helps in clinical diagnosis of many metabolic disorders as well as malfunctioning of the kidney.'
What is the nature of the urine formed in terms of color and fluidity?
The NCERT describes urine as 'a light yellow coloured watery fluid'.
The neural mechanisms causing micturition are collectively called:
The NCERT text states, 'The process of release of urine is called micturition and the neural mechanisms causing it is called the micturition reflex.'
Which of the following components of sweat is directly mentioned as an excretory waste product?
The NCERT states, 'Sweat produced by the sweat glands is a watery fluid containing NaCl, small amounts of urea, lactic acid, etc.' It further clarifies that sweat 'helps in the removal of some of the wastes mentioned above.'
The substances like bilirubin and biliverdin, secreted by the liver, ultimately pass out along with:
The NCERT states, 'Liver, the largest gland in our body, secretes bile-containing substances like bilirubin, biliverdin... Most of these substances ultimately pass out alongwith digestive wastes.'
Which of the following describes the general pattern of species diversity from the equator towards the poles?
The NCERT text states: 'In general, species diversity decreases as we move away from the equator towards the poles.' This is the definition of the latitudinal gradient in biodiversity.
Globally, tropics are defined by which latitudinal range?
The NCERT text specifies: 'tropics (latitudinal range of 23.5° N to 23.5° S) harbour more species than temperate or polar areas.'
Which of the following countries is cited as an example of high bird diversity due to its proximity to the equator?
The text states: 'Colombia located near the equator has nearly 1,400 species of birds while New York at 41° N has 105 species and Greenland at 71° N only 56 species.'
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The bank mixes NEET previous year questions (PYQs) with practice questions, each tagged with its exam appearances where applicable.