| Class XII |
Chemistry |
Chemistry-II |
5 |
the body under very mild conditions. This occurs with the help of certain biocatalysts called enzymes. Almost all the enzymes are globular proteins... |
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| Class XII |
Chemistry |
Chemistry-II |
5 |
compounds required in the diet in small amounts to perform specific biological functions for normal maintenance of optimum growth 295 Biomolecules ... |
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| Class XII |
Chemistry |
Chemistry-II |
5 |
an elegantly simple structure that resembles a gently twisted ladder. The rails of the ladder are made of alternating units of phosphate and the su... |
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| Class XII |
Chemistry |
Chemistry-II |
5 |
Phosphate Sugar n Information regarding the sequence of nucleotides in the chain of a nucleic acid is called its primary structure. Nucleic acids h... |
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| Class XII |
Chemistry |
Chemistry-II |
5 |
is same for every cell and cannot be altered by any known treatment. DNA fingerprinting is now used (i) in forensic laboratories for identification... |
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| Class XII |
Chemistry |
Chemistry-II |
5 |
growth and development. Thyroxine produced in the thyroid gland is an iodinated derivative of amino acid tyrosine. Abnormally low level of thyroxin... |
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| Class XII |
Chemistry |
Chemistry-II |
5 |
important source of energy for mammals, is obtained by the digestion of starch. Monosaccharides are held together by glycosidic linkages to form di... |
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| Class XII |
Chemistry |
Chemistry-II |
5 |
which actually carry out the protein synthesis in the cell. Exercises 10.1 What are monosaccharides? 10.2 What are reducing sugars? 10.3 Write two ... |
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| Class XII |
Computer Science |
Computer Science |
1 |
a p te r C h Exception Handling in Python “Ilikemycodetobeelegantandefficient.Thelogic shouldbestraightforwardtomakeithardforbugstohide, thedepende... |
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| Class XII |
Computer Science |
Computer Science |
1 |
open a file that does not exist, division by zero and so on. Such types of errors might disrupt the normal execution of the program and are called ... |
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| Class XII |
Computer Science |
Computer Science |
1 |
3 Reprint 2026-27 4 KeyboardInterrupt It is raised when the user accidentally hits the Delete or Esc key while executing a program due to which the... |
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| Class XII |
Computer Science |
Computer Science |
1 |
program code. If the result after testing comes false, then the exception is raised. This statement is generally used in the beginning of the funct... |
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| Class XII |
Computer Science |
Computer Science |
1 |
categorises exceptions into distinct types so that specific exception handlers (code to handle that particular exception) can be created for each t... |
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| Class XII |
Computer Science |
Computer Science |
1 |
in which the error has occurred and the exception has been raised. If not found, then it searches the method from which this method (in which excep... |
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| Class XII |
Computer Science |
Computer Science |
1 |
Consider the Program 1-2 given below: Program 1-2 Using try..except block print ("Practicing for try block") try: numerator=50 denom=int(input("Ent... |
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| Class XII |
Computer Science |
Computer Science |
1 |
If no match is found, then the program terminates. However, if an exception is raised for which no handler is created by the programmer, then such ... |
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| Class XII |
Computer Science |
Computer Science |
1 |
terminate abruptly. • When an exception occurs during execution of a program and there is a built-in exception defined for that, the error message ... |
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| Class XII |
Computer Science |
Computer Science |
1 |
the division expression in the program. 5. Define the following: a) Exception Handling b) Throwing an exception c) Catching an exception 6. Explain... |
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| Class XII |
Computer Science |
Computer Science |
10 |
a p te r C h 10 Computer Networks “Hoaxesuseweaknessesinhuman behaviortoensuretheyarereplicatedand distributed. Inotherwords,hoaxespreyon theHumanO... |
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| Class XII |
Computer Science |
Computer Science |
10 |
each device that is a part of a network and that can receive, create, store or send data to different network routes is called a node. In the conte... |
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| Class XII |
Computer Science |
Computer Science |
10 |
SRI The term Internet was The Berners-Lee at CERN developed HTML coined, and URL, thus giving birth to World Wide Web First commercial use of (www)... |
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| Class XII |
Computer Science |
Computer Science |
10 |
LANs (Figure 10.7) via wired/wireless media. Large business, educational LAN, MAN, WAN or and government organisations connect their different any ... |
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| Class XII |
Computer Science |
Computer Science |
10 |
short) is a network adapter used to set up a wired network. It acts as an interface between computer and the network. It is a circuit board mounted... |
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| Class XII |
Computer Science |
Computer Science |
10 |
2 3 4 5 6 7 8 Find and list a few ISPs in your region. Figure 10.11: A network hub with 8 ports 10.4.6 Switch A switch is a networking device (Figu... |
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| Class XII |
Computer Science |
Computer Science |
10 |
wireless router can provide Wi-Fi access to smartphones and other devices. Usually, such routers also contain some ports to provide wired Internet ... |
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