Which of the following statements are true and which ones are false? Give reason in support of your answer.
Potometer is an instrument used for Demonstration of transpiration occurring from the lower surface of a leaf.
[5] Transpiration
Chapter: [5] Transpiration
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[5] Transpiration
Chapter: [5] Transpiration
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What is lenticular transpiration? Mention one major difference between lenticular transpiration and stomatal transpiration.
[5] Transpiration
Chapter: [5] Transpiration
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Droplets of water may sometimes be seen along the margins of the leaves of a banana plant, growing in wet soil, in the mornings. Are these dew drops? Comment upon your answer.
[5] Transpiration
Chapter: [5] Transpiration
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List three major landmarks in human history which contributed to the sudden rise in population of the world.
[15] Population: The Increasing Numbers and Rising Problems
Chapter: [15] Population: The Increasing Numbers and Rising Problems
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Write a sentence of the following:
Chromonemata
[2] Structure of Chromosomes, Cell Cycle and Cell Division
Chapter: [2] Structure of Chromosomes, Cell Cycle and Cell Division
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Name the two nucleic acids. Who discovered them?
[2] Structure of Chromosomes, Cell Cycle and Cell Division
Chapter: [2] Structure of Chromosomes, Cell Cycle and Cell Division
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What are nucleic acids made of?
[2] Structure of Chromosomes, Cell Cycle and Cell Division
Chapter: [2] Structure of Chromosomes, Cell Cycle and Cell Division
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Mention the names of the nitrogen bases present in DNA.
[2] Structure of Chromosomes, Cell Cycle and Cell Division
Chapter: [2] Structure of Chromosomes, Cell Cycle and Cell Division
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Mention three differences between DNA and RNA.
[2] Structure of Chromosomes, Cell Cycle and Cell Division
Chapter: [2] Structure of Chromosomes, Cell Cycle and Cell Division
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Write a short note on features of DNA.
[2] Structure of Chromosomes, Cell Cycle and Cell Division
Chapter: [2] Structure of Chromosomes, Cell Cycle and Cell Division
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Who described the detailed structure of DNA?
[2] Structure of Chromosomes, Cell Cycle and Cell Division
Chapter: [2] Structure of Chromosomes, Cell Cycle and Cell Division
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What is the importance of DNA?
[2] Structure of Chromosomes, Cell Cycle and Cell Division
Chapter: [2] Structure of Chromosomes, Cell Cycle and Cell Division
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What are the rungs of the "DNA ladder" made of?
[2] Structure of Chromosomes, Cell Cycle and Cell Division
Chapter: [2] Structure of Chromosomes, Cell Cycle and Cell Division
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Name the repeating components of each DNA strand lengthwise.
[2] Structure of Chromosomes, Cell Cycle and Cell Division
Chapter: [2] Structure of Chromosomes, Cell Cycle and Cell Division
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Fill in the blank:
DNA replicates in the ______ of the cell cycle.
[2] Structure of Chromosomes, Cell Cycle and Cell Division
Chapter: [2] Structure of Chromosomes, Cell Cycle and Cell Division
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Fill in the blanks:
There are two nucleic acids ______ and ______.
[2] Structure of Chromosomes, Cell Cycle and Cell Division
Chapter: [2] Structure of Chromosomes, Cell Cycle and Cell Division
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Fill in the blank:
DNA acts as director of ______ synthesis.
[2] Structure of Chromosomes, Cell Cycle and Cell Division
Chapter: [2] Structure of Chromosomes, Cell Cycle and Cell Division
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Fill in the blank:
DNA stands are made up of, pentose sugar and four types of ______ bases.
[2] Structure of Chromosomes, Cell Cycle and Cell Division
Chapter: [2] Structure of Chromosomes, Cell Cycle and Cell Division
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State whether the following sentence is true or false:
Each spiral of the DNA has 12 nucleotides.
[2] Structure of Chromosomes, Cell Cycle and Cell Division
Chapter: [2] Structure of Chromosomes, Cell Cycle and Cell Division
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