General Knowledge Quiz – Set Thirteen

1.Cell originally coined by ______ in 1600
a. Robert Hooke
b. Robert Brown
c. Janssen
d. Robert Von Leuwenhoek

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Answer a. Robert Hooke

2.Cells surrounding guard cells but differing from other epidermal cells are known as ____
a. Subsidiary cells
b. Outer guard cells
c. Dermal cells
d. Vascular cells

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Answer a. Subsidiary cells

3.When xylem and phloem elements are found in the same line the arrangements is called ______
a. Conjoints
b. Collateral
c. Bicollateral
d. Radial

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Answer a. Conjoints

4.The sclereids are commonly found in fruit wall and in seed coat and asterosclereids are _____
a. Round shaped
b. star shaped
c. Helical shaped
d. Spiral shaped

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Answer b. Star Shaped

5.Sieve tube member is associated with one or more specialized parenchyma cells called _____ and only seen in _____
a. Guard cells, gymnosperms
b. Stomatal cells, pteridiophytes
c. Sieve cells, ferns
d. Companion cells, angiosperms

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Answer d. Companion cells, angiosperms

6.When Oval shaped vascular bundles scatter throughout the ground tissue, this arrangement of vascular tissue is called _____
a. Atactostele
b. Piliferous
c. Amphicribal
d. Amphivasal

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Answer a. Atactostele

7.Xylem is a water conducting tissue, made up of tracheids, trachea, xylem fibers and _________
a. Xylem sclerenchyma
b. Xylem collenchyma
c. Xylem arenchyma
d. Xylem parenchyma

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Answer d. Xylem, Parenchyma

8.Companion cells are small cells, living, found and pressed to sieve tubes. Cells are rich in cytoplasm and actively metabolic. The function is _______
a. Provide high metabolic activity
b. To provide energy for transportation
c. To provide secondary thickening
d. To provide protection

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Answer b. to provide energy for transportation

9.In dicot root, the stomata is on ________
a. Both of epidermal layers
b. On lower epidermis
c. On upper epidermis
d. Remain absent

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Answer b. on lower epidermis

10.In cortex of trees, generally many phellogens arise, each one producing outer phellem and inner phelloderm. If such a process takes place, whatever tissues lie outer to the inner most phellogen, become suberized and dead. This structure is called bark. Bark Provides ______
a. Insulation
b. Protection
c. Thickening
d. Transportation

View Answer
Answer a. Insulation