1. Which among the following is called ‘queen of spices’?
[A] Cardamom
[B] Clove
[C] Turmeric
[D] None of the above
Show Answer
Correct Answer: A [Cardamom]
Notes:
Cardamom (Botanical name: Elettaria cardamomum) is called the Queen of Spices because of its rich aroma and many uses as a medicine and as a flavoring in food and drink.
2. A four chambered heart is found in which of the following?
[A] mammals only
[B] mammals and fish
[C] mammals & Birds
[D] mammals and Amphibians
Show Answer
Correct Answer: C [mammals & Birds]
Notes:
Archosaurs (crocodilians and birds) and mammals show complete separation of the heart into two pumps, for a total of four heart chambers;
3. What is the average life of Red Blood cells in our body?
[A] 30-40 days
[B] 70-80 days
[C] 100-120 days
[D] 160-180 days
Show Answer
Correct Answer: C [100-120 days]
Notes:
Red blood cells (RBCs) have an average lifespan of 100-120 days and are produced in the bone marrow, while the spleen is where they are broken down. Macrophages break down RBCs into globin and heme, recycling amino acids and iron for various purposes, including protein synthesis. Some parts of old RBCs are reused in creating new ones. The average lifespan of cells in the human body is 7 to 10 years, but it varies across cell types and organs. Neutrophil cells, for example, last about two days.
4. The relationship between algae and fungi is an example of _?
[A] Symbiotic
[B] Parasitism
[C] Mutualism
[D] Commensalism
Show Answer
Correct Answer: A [ Symbiotic ]
Notes:
First option is the correct answer
Symbiotic relationships are a special type of interaction between species. Sometimes beneficial, sometimes harmful, these relationships are essential to many organisms and ecosystems. Mutualism is when both organisms involved are benefitted.
5. Great Zebra, Lesser Zebra and Spotted Zebra are species of:
[A] Butterfly
[B] Fish
[C] Monkey
[D] Dog
Show Answer
Correct Answer: A [ Butterfly]
Notes:
The Great Zebra, Lesser Zebra and Spotted Zebra are the swallowtail butterfly found in the Southeast Asia, which are relatively common and not threatened species.
6. Which organs have different basic structures, yet present a similarity in appearance and perform analogous functions?
[A] Kidney and liver
[B] Heart and lungs
[C] Wings of a bat and a bird
[D] Brain and spinal cord
Show Answer
Correct Answer: C [Wings of a bat and a bird]
Notes:
This is a unique example of convergent evolution in which organs can serve similar purposes but originate from very different original structures. Wings of a bat and bird serve the same purpose, flight, yet they have different underlying structures, resulting from a different evolutionary path.
7. ‘Pace-maker’ is associated with which of the following body organs?
[A] Liver
[B] Brain
[C] Heart
[D] Lungs
Show Answer
Correct Answer: C [Heart]
Notes:
A pacemaker is a small device that’s placed in the chest or abdomen to help control abnormal heart rhythms. This device uses electrical pulses to prompt the heart to beat at a normal rate.
8. Which part of the human body is affected by Alziemer’s disease?
[A] Brain
[B] Lungs
[C] Heart
[D] Kidneys
Show Answer
Correct Answer: A [Brain]
Notes:
Alziemer’s is a disease which attacks the neural system, It results in continuous decline in the number brain cells which leads to loss of memory.
9. Which vitamin is also called as retinol?
[A] Vitamin A
[B] Vitamin C
[C] Vitamin D
[D] Vitamin K
Show Answer
Correct Answer: A [Vitamin A]
Notes:
Vitamin A is also called as retinol deficiency of which results in xeropthalmia. Chemical formula for Vitamin A is C20H30O.
10. What is a common feature of archaebacteria?
[A] Structure of cell membrane
[B] Structure of cell wall
[C] Has fatty acid synthetase
[D] Structure of flagellin protein
Show Answer
Correct Answer: C [Has fatty acid synthetase]
Notes:
Archaebacteria are primitive bacteria that have a cell wall consisting of branched lipids that help them to endure adverse conditions.
