31. What is the classification of epithelial tissue based on?
[A] function
[B] type of matrix
[C] structural modification
[D] nonvoluntary or voluntary action
Show Answer
Correct Answer: C [structural modification]
Notes:
The classification of epithelial tissue based on the structural modification. The main functions of epithelial tissue are protection, secretion, absorption, and sensation.
32. How is the image formed on the retina of the human eye?
[A] virtual and inverted
[B] real and inverted
[C] real and erect
[D] virtual and erect
Show Answer
Correct Answer: B [real and inverted]
Notes:
Eye lens is of convex nature. Therefore, the image formed by it on the retina is real and inverted.
33. Beneath the Bowman’s capsule, the tubal coil forms the proximal tubule, and then it follows a hairpin turn called __
[A] loop of Henle
[B] nephron
[C] glomerulus
[D] Homeostasis
Show Answer
Correct Answer: A [loop of Henle]
Notes:
Beneath the Bowman’s capsule, the tubal coil forms the proximal tubule, and then it follows a hairpin turn called the loop of Henle.
34. What is the name of the part of the stomach attached to the esophagus?
[A] Fundus
[B] Pylorus
[C] Duodenum
[D] Cardia
Show Answer
Correct Answer: D [Cardia]
Notes:
Cardia is the part of the stomach that is closest to the esophagus and attached to it.
35. Which of the following female reproductive organs produces female hormones?
[A] Uterus
[B] Fallopian Tubes
[C] Ovaries
[D] None of these
Show Answer
Correct Answer: C [Ovaries]
Notes:
Ovaries are the female reproductive organs that are responsible for producing various hormones and produce female gametes.
36. Which of the following is an example of starch crops biomass feedstocks?
[A] Sugar cane
[B] Wheat straw
[C] Corn stover
[D] Orchard prunings
Show Answer
Correct Answer: A [Sugar cane]
Notes:
Sugar cane is an example of starch crops biomass feedstocks. Biomass feedstocks include forest product waste, agricultural residues, organic fractions of municipal solid waste, paper, cardboard, plastics, food waste, green waste, and other wastes.
37. Both, haemoglobin and myoglobin require ____ for formation:
[A] Vitamin A
[B] Vitamin B12
[C] Iron
[D] Calcium
Show Answer
Correct Answer: C [Iron]
Notes:
Haemoglobin is called as tetrameric hemoprotein, while myoglobin is called monomeric protein. Haemoglobin is found systematically all over the body, while myo-globin is found in muscles tissues only. The body requires iron for the synthesis of its oxygen transport proteins, in particular hemo-globin and myoglobin.
38. Which angiosperm is vesselless?
[A] Maize
[B] Trochodendron
[C] Hydrilla
[D] Wheat
Show Answer
Correct Answer: B [Trochodendron]
Notes:
Trochodendron is a genus of flowering plants with one living species. It is vesselless angiosperm. Fewer than 200 species of angiosperms have the primitive feature of vesselless wood. With two exceptions— Trochodendron and Tetracentron; all vesselless angiosperms occur in the Magnolidae.
39. What is the transplantation of graft between genetically identical individuals?
[A] Autograft
[B] Xenograft
[C] Iso-graft
[D] Allograft
Show Answer
Correct Answer: C [Iso-graft]
Notes:
An isogenic graft or Isograft is a graft between genetically identical individuals (i.e. monozygotic twins). This type of graft donot pose any form of tissue rejection threat by recipient’s body.
40. Smut of wheat is caused by ____:
[A] Puccinia graminis
[B] Colletotrichum falcatum
[C] Ustilago maydis
[D] Ustilago tritici
Show Answer
Correct Answer: D [Ustilago tritici]
Notes:
Smut of wheat is caused by Ustilago tritici. Rust is caused by Puccinia grlaminae. Mild symptoms may be present prior to heading, including yellowish leaf streaks and stiff, dark green leaves. Affected plants head out early, producing sterile heads with clumped, sooty olive-black spores in place of healthy glumes and kernels.
