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Cork cambium results in the formation of...

Cork cambium results in the formation of cork which becomes impermeable to water due to the accumulation of:

A

resins

B

suberin

C

lignin

D

tannins.

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A colloidal solution is a type of mixture which consists of particles whose size varies between 1 and 1000 nanometres. In colloidal solution the particles are distributed evenly. During this process the particles do not settle down. This is one of the best know thing about colloidal solutions. Properties of colloids and their variation are a well-known area ever since the primitive age. The best example to prove their familiarity with us is that we know from very early times that coagulation of milk results in the formation of curd. Physical properties of colloids 1. The nature of the colloidal solution is heterogeneous i.e. unlike. These solutions dwell with two different phases : • Dispersed medium Dispersed phase. 2. Despite the fact that colloidal dispersions are unlike in description (nature), yet the dispersed fragments are not detectabJe by the human eye. This is due to the microscopic size of the particles in the solution. 3. The colour of the colloidal dispersion is determined by particles in the solution based on their size. The wavelengths of light that is absorbed will be longer ifthe size of the particle is large. 4. As a result of its size, the colloidal fragments can easily be passed through a traditional filter paper. However, these particles can be filtered by using membranes such as animal, cellophane, and ultrafilters. What type of phases of colloidal solutions ?

A colloidal solution is a type of mixture which consists of particles whose size varies between 1 and 1000 nanometres. In colloidal solution the particles are distributed evenly. During this process the particles do not settle down. This is one of the best know thing about colloidal solutions. Properties of colloids and their variation are a well-known area ever since the primitive age. The best example to prove their familiarity with us is that we know from very early times that coagulation of milk results in the formation of curd. Physical properties of colloids 1. The nature of the colloidal solution is heterogeneous i.e. unlike. These solutions dwell with two different phases : • Dispersed medium Dispersed phase. 2. Despite the fact that colloidal dispersions are unlike in description (nature), yet the dispersed fragments are not detectabJe by the human eye. This is due to the microscopic size of the particles in the solution. 3. The colour of the colloidal dispersion is determined by particles in the solution based on their size. The wavelengths of light that is absorbed will be longer ifthe size of the particle is large. 4. As a result of its size, the colloidal fragments can easily be passed through a traditional filter paper. However, these particles can be filtered by using membranes such as animal, cellophane, and ultrafilters. Give the name of membrane used for filteration ?

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Cork cambium forms tissues that form the cork. Do you agree with this statement? Explain

JBD PUBLICATION-ANATOMY OF FLOWERING PLANTS-EXAMPLE
  1. Cork cambium results in the formation of cork which becomes impermeabl...

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  2. Fill in the blanks: Vascular bundles are arranged in a ……………..in a dic...

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  3. Fill in the blanks: Vascular bundles are…………….in a monocot stem.

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  4. Fill in the blanks: Roots hairs are………………whereas stem hairs are………………....

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  5. Fill in the blanks: In monocot stems vessles are…………….in shape.

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  6. Fill in the blanks: ………………cavity is present in vascular bundle of mono...

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  7. Fill in the blanks

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  8. Fill in the blanks: Xylem is exarch in root and…………….. In stem.

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  9. Fill in the blanks: Cells of ………….are suberised.

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  10. Fill in the blanks: Lenticels are present in…………. .

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  11. Fill in the blanks: Guard cells are……………….shaped in monocot leaf.

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  12. Which tissue is living mechanical tissue?

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  13. What is bicollateral vascular bundle?

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  14. What is closed vascular bundle?

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  15. Where do you find bicollateral vascular bundle?

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  16. Name a monocot plant with secondary growth in stem.

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  17. What is conjuctive tissue?

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  18. Define intercalary meristem.

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  19. Name the most durable wood.

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  20. Name two plants with anomalous secondary growth.

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  21. Where do you find radial vascular bundles?

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