IIT JEE प्रश्न और उत्तर का अभ्यास करें

प्र: Spongy, porous bone tissue is also called 1440 0

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    Compact bone
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    Bone fissure
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    Yellow bone marrow
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    Cancellous bone
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उत्तर : 4. "Cancellous bone"
व्याख्या :

Answer: D) Cancellous bone Explanation: Spongy, porous bone tissue is also called cancellous bone.   Cancellous bone is found in bones that aren't generally under significant stress like in the shoulder blades, ribs, parts of the skull, and at the ends of long bones.

प्र: In general, which is the cause of a sea breeze? 1240 0

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    Pressure
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    Specific heat
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    Heat
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    All the above
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उत्तर : 2. "Specific heat"
व्याख्या :

Answer: B) Specific heat Explanation: The usual cause of sea breeze is the difference in specific heat capacity between land and water Land heats and cools more quickly than water.   What is the cause of a sea breeze? The air over the land is warmed and rises, to a greater temperature than that over the sea. This produces a convection current, with cooler air flowing in from over the sea to replace that rising from the land. At night the land cools more than the sea, so the action reverses to produce a land-breeze, blowing off the land.

प्र: What is the function of an antagonist in a story? 1011 0

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उत्तर :
व्याख्या :

The antagonist is the negative or opposing force in a story. It could be a human enemy, or it could be non-human, like an animal or something less tangible, like fear.   The antagonist plays an important role in story development.

प्र: What is the distance around a shape called? 1314 0

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    Volume
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    Area
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    Mass
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    Perimeter
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उत्तर : 4. "Perimeter"
व्याख्या :

Answer: D) Perimeter Explanation: The distance around a shape or figure I called Perimeter. A perimeter is a path that surrounds a two-dimensional shape.

प्र: Reuptake refers to the 2115 0

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    reabsorption of excess neurotransmitter molecules by a sending neuron
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    release of hormones into the bloodstream
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    movement of neurotransmitter molecules across a synaptic gap
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    inflow of myelin through an axon membrane
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उत्तर : 1. "reabsorption of excess neurotransmitter molecules by a sending neuron"
व्याख्या :

Answer: A) reabsorption of excess neurotransmitter molecules by a sending neuron Explanation: Reuptake refers to the process in the brain of neurons to retrieve chemicals that were not received by the next neuron. Neurons are cells in the brain that have miniscule spaces between them. They communicate with each other by sending chemicals across the space to the next neuron.

प्र: What is the major monosaccharide found in the body? 2070 0

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    Galactose
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    Sucrose
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    Fructose
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    Glucose
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उत्तर : 4. "Glucose"
व्याख्या :

Answer: D) Glucose Explanation: Glucose is the major monosaccharide found in the body. It is absorbed directly into the bloodstream duringdigestion and a vital carbohydrate as it is a source of energy.

प्र: Rust forms when _____ reacts with chemicals in rocks. 1551 0

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    Water
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    Oxygen
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    Nitrogen
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    Carbondioxide
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उत्तर : 2. "Oxygen"
व्याख्या :

Answer: B) Oxygen Explanation: Rust forms when oxygen reacts with chemicals in rocks, and that is often the case with many other elements in general. Like a copper nail being exposed to the air will rust.

प्र: What looks back but cannot see? 1119 0

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उत्तर :
व्याख्या :

Reflection is what which looks back but can't see.

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