11. Which of the following branch of biology deals with the study of behavioral aspects of animals?
[A] Myrmecology
[B] Palaeozoology
[C] Psychobiology
[D] Parazoology
Show Answer
Correct Answer: C [Psychobiology]
Notes:
Psychobiology is branch of biology which deals with the study of behavioral aspects of animals.
12. Splanchnology is a branch of biology dealing with __?
[A] Study of visceral organs
[B] Study of species
[C] Study of bony joints and ligaments
[D] Study of forget including buccal cavity and stomach
Show Answer
Correct Answer: A [Study of visceral organs]
Notes:
Splanchnology is the study of the visceral organs, i.e. digestive, urinary, reproductive and respiratory systems.
13. Which of the following statements about the cell wall is false?
[A] cell wall is mainly composed of lipid
[B] cell wall is mainly composed of starch
[C] cell wall is mainly composed of protein
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
The cell wall is a structural layer surrounding cells, just outside the cell membrane. It can be hard, flexible and rigid.
14. Protein is made up of which of the following?
[A] Sugar
[B] Amino acid
[C] Carbohydrate
[D] Fatty acid
Show Answer
Correct Answer: B [Amino acid
]
Notes:
All proteins are linked by a peptide link and are polymers of amino acids. Amino acid is the building block of protein.
15. Zygotic meiosis is characterized by__?
[A]
Fucus
[B] Funaria
[C] Marchantia
[D] Chlamydomonas
Show Answer
Correct Answer: D [Chlamydomonas]
Notes:
Chlamydomonas is a genus of green algae that includes about 150 species. All these unicellular flagellates are found as “snow algae” in stagnant water and on moist soil, in freshwater, seawater and even ice. A zygotic meiosis is the meiosis of a zygote immediately following the karyotype, which is the fusion of two cell nuclei.
16. What is the stage in which a plant slows down its cellular activity and sheds its leaves?
[A] dormancy
[B] abscission
[C] tropisms
[D] None of these
Show Answer
Correct Answer: A [dormancy]
Notes:
Dormancy is the stage in which a plant slows down its cellular activity and sheds its leaves.
17. What are the reproductive parts of a flower?
[A] Stamen
[B] Pistil
[C] Both 1 and 2
[D] Neither 1 nor 2
Show Answer
Correct Answer: C [Both 1 and 2]
Notes:
The stamen is the male reproductive part of a flower, and the pistil is the female reproductive part of a flower. The stamen is surrounded by anthers and filaments and anthers produce pollen grains.
18. Which of the following are the features of Monocotyledons?
[A] leaves are simples and the veins are parallel
[B] seeds have a single cotyledon
[C] closed vascular bundles and large in number
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
The features of Monocotyledons are: leaves are simple and the veins are parallel, seeds have a single cotyledon, the group contains adventitious roots and closed vascular bundles and large in number.
19. The region where the leaves arise is__.
[A] internodes
[B] buds
[C] nodes
[D] stomata
Show Answer
Correct Answer: C [nodes]
Notes:
The region where the leaves arise is nodes and the region between the nodes is known as the internode.
20. Which of the following is not a stem modification?
[A] Corm of Colocasia
[B] Rhizome of Ginger
[C] Tuber of Potato
[D] Pitcher of Nepenthes
Show Answer
Correct Answer: D [Pitcher of Nepenthes]
Notes:
The corm of Colocasia, Rhizome of Ginger, and Tuber of Potato are stem modifications. Pitcher of Nepenthes is a leaf modification.
