11. Which among the following is not a connective tissue?
[A] Blood
[B] Skin
[C] Cartilage
[D] Bone
Show Answer
Correct Answer: B [Skin]
Notes:
The connective tissues include several types of fibrous tissue that vary only in their density and cellularity, as well as the more specialized and recognizable variants—bone, ligaments, tendons, cartilage, and adipose tissue. Skin is not a connective tissue. It is the body’s largest organ and consists of multiple layers, including the epidermis (outermost layer) and the dermis (deeper layer). Skin primarily serves as a protective barrier and regulates temperature, but it is mainly classified as an epithelial tissue due to its structure and function.
12. Which is the largest muscle in the human body?
[A] Gluteus maximus
[B] Biceps brachii
[C] Masseter
[D] Pectorlis major
Show Answer
Correct Answer: A [Gluteus maximus]
Notes:
Gluteus maximus is the largest muscle in the human body located at the lower back, it is also called as the buttocks.
13. Who introduced the three kingdoms of classification?
[A] RH Whittaker
[B] Ernest Haeckel
[C] Copeland
[D] Carolus Linnaeus
Show Answer
Correct Answer: B [Ernest Haeckel]
Notes:
Plantae, Protista and Animalia are the three kingdom of Classification introduced by Ernest Haeckel.
14. In which of the following hemocaelic body cavity is found?
[A] Cockroach
[B] Lizard
[C] Mosquito
[D] Honeybee
Show Answer
Correct Answer: A [Cockroach]
Notes:
Hemocoelic body cavity is a characteristic of Cockroach.
15. rRNA is synthesized by which of the following?
[A] Nucleus
[B] Nucleolus
[C] Golgi body
[D] Cytoplasm
Show Answer
Correct Answer: B [Nucleolus]
Notes:
Molecules of rRNA are synthesized by the nucleolus in a specialized region of the cell nucleus, which appears as a dense region within the nucleus and contains genes encoding rRNA.
16. In bryophytes, antherozoids are__?
[A] Biflagellate
[B] Multiflagellate
[C] Sometimes biflagellate and sometimes multiflagellate
[D] Biflagellate in a few species and multiflagellate in the rest
Show Answer
Correct Answer: A [Biflagellate]
Notes:
Antheridium is a type of spherical male sex organ that produces dizygotic spermatozoa (antherozoid). Both flagellae are similar, apically fused, and are whiplash-type.
17. Which of the following is wrong for bryophytes?
[A] Vascular tissue lacking clear
[B] Independent sporophyte absent clear
[C] Gametophyte reduced and dependent done
[D] Asexual reproduction by zoospores absent
Show Answer
Correct Answer: C [Gametophyte reduced and dependent done]
Notes:
The main plant of Bryophyta is the gametophyte. The gametophytic stage is independent.
18. Which of the following is not necessary during photosynthesis.
[A] Sunlight
[B] Oxygen
[C] Carbon dioxide
[D] Water
Show Answer
Correct Answer: B [Oxygen]
Notes:
Photosynthesis is a process that is performed by green plants to make their food. In this process, the leaves of the green plant absorb CO2 from the atmosphere and make food in the presence of sunlight and water.
19. An important product of the Krebs cycle is__?
[A] Water
[B] Methane
[C] ATP
[D] None of the above
Show Answer
Correct Answer: C [ATP]
Notes:
An important product of the Krebs cycle is ATP. Adenosine triphosphate (ATP) is a source of energy for use and storage at the cellular level.
20. In which part of the plant does photosynthesis usually takes place?
[A] Flowers
[B] Roots
[C] Leaves
[D] Stems
Show Answer
Correct Answer: C [Leaves]
Notes:
Leaves are the part of the plant where photosynthesis takes place, in which food is made for the plant.
