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BiologyClass 10ICSE
The process of carrying food from the leaves to other parts of a plant is called: (a) transpiration (b) transportation (c) translocation (d) transformation
BiologyClass 10ICSE
Which one of the following has cytoplasm but no nucleus: (a) xylem vessel (b) sieve tube (c) tracheid (d) companion cell
BiologyClass 10ICSE
In which of the following are the largest amounts of nitrogen excreted from a mammalian body? (a) Breathe (b) sweat (c) urine (d) feces
BiologyClass 10ICSE
Which of the following has a three-chambered heart? (a) pigeon (b) lizard (c) fish (d) lion
BiologyClass 10ICSE
The phloem tissue in plants is responsible for the transport of: (a) water (b) water and minerals (c) sugar (d) all of the above
BiologyClass 10ICSE
It has been found that people living in very high mountains have many more red corpuscles in their blood than people living in plains. Which one of the following best accounts for this phenomenon? (a) the cold climate stimulates the production of red corpuscles to keep the body warm (b) people of high mountains breathe more quickly (c) the low air pressure requires more red corpuscles to supply the body cells with oxygen. (d) The low air pressure in high mountains speeds up the blood circulation so that more red corpuscles are needed
BiologyClass 10ICSE
Which blood vessel does not carry any carbon dioxide? (a) Pulmonary artery (b) vena cava (c) hepatic vein (d) pulmonary vein
BiologyClass 10ICSE
Which vein brings clean blood from the lungs into the heart? (a) renal vein (b) pulmonary vein (c) vena cava (d) hepatic vein
BiologyClass 10ICSE
In which of the following vertebrate group/groups, the heart does not pump oxygenated blood to different parts of the body? (a) Pisces and amphibians (b) amphibians and reptiles (c) amphibians only (d) Pisces only
BiologyClass 10ICSE
Which of the following is the correct path taken by urine in our body? (a) kidney → ureter → urethra → bladder (b) kidney → bladder → urethra → ureter (c) kidney → ureter → bladder → urethra (d) bladder → kidney → ureter → urethra
BiologyClass 10ICSE
What prevents the backflow of blood inside the heart during contraction? (a) thick muscular walls of ventricles (b) valves (c) thin walls of atria (d) all of the above
BiologyClass 10ICSE
The blood leaving the tissues becomes richer in: (a) carbon dioxide (b) water (c) hemoglobin (d) oxygen
BiologyClass 10ICSE
Blood is pumped from the heart to the entire body by the: (a) lungs (b) ventricles (c) atria (d) nerves
BiologyClass 10ICSE
A blood vessel which carries blood back to the heart is: (a) artery (b) vein (c) capillary (d) platelet
BiologyClass 10ICSE
Water absorption through roots can be increased by keeping the potted plants: (a) in the shade (b) in dim light (c) under the fan (d) covered with a polythene bag
BiologyClass 10ICSE
If a patient is put on dialysis, he is most likely suffering from a severe ailment of the: (a) circulatory system (b) respiratory system (c) excretory system (d) digestive system
BiologyClass 10ICSE
One of the following is not a constituent of blood. This one is: (a) red blood cells (b) white blood cells (c) sieve plates (d) platelets
BiologyClass 10ICSE
Which of the following carries substances upwards as well as downwards in a plant? (a) xylem (b) companion cells (c) phloem (d) tracheid’s
BiologyClass 10ICSE
An animal in which the oxygenation of blood does not take place in the lungs is: (a) cow (b) fish (c) frog (d) fox
BiologyClass 10ICSE