31. Which of the following helps to protect the stomach wall from its secretion of hydrochloric acid?
[A] Pepsin
[B] Trypsin
[C] Amylase
[D] Mucus
Show Answer
Correct Answer: D [Mucus]
Notes:
Mucus helps to protect the stomach wall from its secretion of hydrochloric acid.
32. Which of the following is present in the oral cavity or buccal cavity?
[A] teeth
[B] tongue
[C] salivary glands
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
Teeth, tongue, and salivary glands are present in the oral cavity or buccal cavity.
33. The type of placenta found in humans is called __.
[A] Discoidal
[B] Cotyledonary
[C] Zonary
[D] Diffuse
Show Answer
Correct Answer: A [Discoidal]
Notes:
Placenta found in humans is called discoidal. It is a placenta in which the chorionic villi are arranged in a circular plate.
34. Which of the following is correctly matched?
[A] Measles – Bacteria
[B] Influenza – Virus
[C] Tuberculosi – Protozoa
[D] Whooping cough – Fungi
Show Answer
Correct Answer: B [Influenza – Virus]
Notes:
Influenza is caused by Influenza Virus. Whereas Measles is also caused by viruses, Tuberculosi,s and Whooping cough is caused by bacteria.
35. Which of the following is not a Degenerative disease?
[A] Hypertension
[B] Atherosclerosis
[C] Obesity
[D] Alzheimer’s disease
Show Answer
Correct Answer: C [Obesity]
Notes:
Obesity is not a Degenerative disease. Degenerative diseases are those diseases, which occur due to aging and result in malfunction or deficiency.
36. The root nodules for nitrogen fixation of a non-legume tree are?
[A] Frankia
[B] Rhizobium
[C] Azotobacter
[D] Thiobacillus
Show Answer
Correct Answer: A [Frankia]
Notes:
The root nodules for nitrogen fixation of a non-legume tree are Frankia. It is a genus of nitrogen-fixing bacteria that live in symbiosis with actinorhizal plants.
37. What is Bed Method in Vermicomposting?
[A] beds of chemicals matter are prepared
[B] beds of organic matter are prepared
[C] beds of phosphorus are prepared
[D] All of the above
Show Answer
Correct Answer: B [beds of organic matter are prepared]
Notes:
In Vermicomposting, the Bed Method in which beds of organic matter are prepared.
38. Which of the following forestry materials can be used as biomass?
[A] Logging residues
[B] Tallow
[C] Fish oil
[D] Manure
Show Answer
Correct Answer: A [Logging residues]
Notes:
The forestry material used as biomass is accumulating residues. Tallow, fish oil, and manure belong to animal products used as biomass.
39. When we touch leaves of “Touch me not plant”, they close, these movements are called ____:
[A] Seismonastic movements
[B] Photonastic movements
[C] Nyctinastic movements
[D] Chemonastic movements
Show Answer
Correct Answer: A [Seismonastic movements]
Notes:
These types of mechanism have been termed seismonastic movements. The movement occurs when specific regions of cells lose turgor pressure, which is the force that is applied onto the cell wall by water within the cell vacuoles and other cell contents.
40. Haemoglobin has highest affinity for ____:
[A] Carbon monoxide
[B] Nitrogen
[C] Oxygen
[D] Carbon dioxide
Show Answer
Correct Answer: C [Oxygen]
Notes:
Haemoglobin is the iron-containing oxygen-transport metaloprotein in the red blood cells. It is responsible for binding oxygen in the lung and transporting the oxygen throughout the body to be used up in aerobic metabolic pathways.
