11. Which branch of biology is known for the study of flowers?
[A] Dendrology
[B] Anatomy
[C] Agrostology
[D] Anthology
Show Answer
Correct Answer: D [Anthology]
Notes:
The study of flowers and flowering plants is known as anthology. Anthos means a flower and Logia means collection.
12. Who discovered cell differentiation?
[A] Walther Flemming
[B] Edwin John Butler
[C] Karl Ernst von Baer
[D] Parthasarthy Iyengar
Show Answer
Correct Answer: A [Walther Flemming]
Notes:
Cell differentiation is the process by which dividing cells change their functional or phenotypic type. All cells probably derive from stem cells and acquire their functions when they mature. Walther Flemming discovered cell differentiation.
13. Which of the following virus has its envelope from the host cell nucleus?
[A] Paramyxoviruses
[B] Retroviruses
[C] Orthomyxoviruses
[D] Herpesviruses
Show Answer
Correct Answer: D [Herpesviruses]
Notes:
The Herpesviridae are a large family of DNA viruses. It causes infections and some diseases in animals, including humans. Herpes viruses are divided into three groups: α herpesviruses, herpes simplex virus types 1 and 2.
14. What is the fusion of mature individuals that directly act as gametes called?
[A] Isogamy
[B] Anisogamy
[C] Hologamy
[D] Autogamy
Show Answer
Correct Answer: C [Hologamy]
Notes:
In Chlamydomonas, two mature individuals participate in sexual reproduction called hologamy.
15. In which of the following groups would you place a plant that produces spores and embryos but lacks seeds and vascular tissue?
[A] Fungi
[B] Bryophytes
[C] Pteridophytes
[D] Gymnosperms
Show Answer
Correct Answer: B [Bryophytes]
Notes:
Bryophytes are small, non-vascular plants. Examples are mosses, liverworts, and hornworts. They play an important role in regulating ecosystems because they provide an important buffer system for other plants that live together. They benefit from the water and nutrients that bryophytes collect.
16. Which of the following is a true moss?
[A] Club moss
[B] Reindeer moss
[C] Irish moss
[D] Bogg moss (Sphagnum)
Show Answer
Correct Answer: D [Bogg moss (Sphagnum)]
Notes:
Because club moss is pteridophyte and reindeer moss and Irish moss are lichens.
17. Fruits are not found in gymnosperm plants because__?
[A] They are seedless plants
[B] They are not pollinated
[C] They have no ovary
[D] Process of fertilization does not take place in them
Show Answer
Correct Answer: C [They have no ovary]
Notes:
Fruits are not found in gymnosperm plants because they have no ovaries. Gymnosperms belong to the Kingdom Plantae and the sub-kingdom Embryophyta.
18. What is the most important function of the leaves?
[A] Photosynthesis
[B] Transpiration
[C] Guttation
[D] Storage
Show Answer
Correct Answer: A [Photosynthesis]
Notes:
Photosynthesis is the major function performed by leaves, through which carbon dioxide, water and sunlight are converted into glucose and energy.
19. Which of the following serves as a storage room for starch in vegetables and fruits?
[A] parenchymatous
[B] collenchyma
[C] sclerenchyma
[D] All of the above
Show Answer
Correct Answer: A [parenchymatous]
Notes:
Parenchymatous serves as a storage room for starch in vegetables and fruits.
20. Which of the following is not a function of Ethylene?
[A] stimulates the conversion of starch and acids to sugars
[B] promotes germination in some cereals
[C] stimulate shoot elongation, seed germination
[D] fruit ripening, flower wilting, and leaf fall
Show Answer
Correct Answer: C [stimulate shoot elongation, seed germination]
Notes:
The function of Ethylene – stimulates the conversion of starch and acids to sugars, promotes germination in some cereals, and sprouting of bulbs and potatoes and is also associated with fruit ripening, flower wilting, and leaf fall.
