1. “Minimata Disease ” is a severe neurological syndrome caused by eating fish and discovered in Japan. What was factor behind this disease?
[A] Arsenic Poisoning
[B] Mercury Poisoning
[C] Lead Poisoning
[D] Cadmium Poisoning
Show Answer
Correct Answer: B [Mercury Poisoning]
Notes:
Minamata disease, sometimes referred to as Chisso-Minamata disease, is a neurological syndrome which is caused by severe mercury poisoning. Some of the symptoms of the disease are numbness in the hands and feet, ataxia, general muscle weakness, etc.
2. Chlorophyll absorbs which of the wavelength of the Sun light ?
[A] Green & Blue
[B] Green & Red
[C] Red & Blue
[D] Red & Yellow
Show Answer
Correct Answer: C [Red & Blue]
Notes:
Chlorophyll absorbs red and blue light but reflects green light.
3. Which antigen is present in O blood group?
[A] Either A or B
[B] Both A and B
[C] Neither A nor B
[D] O
Show Answer
Correct Answer: C [Neither A nor B]
Notes:
There are no antigens present in Blood group O. It has both anti-A and anti-B antibodies in the plasma and also some special “anti-A,B” antibodies. Blood group AB has both A and B antigens, but no antibodies.
4. The name of Karl Landsteiner is associated with the discovery of which of the following ?
[A] Human Endocrine System
[B] Human Blood Groups
[C] Vitamin B Group
[D] Proteins
Show Answer
Correct Answer: B [Human Blood Groups]
Notes:
The name of Karl Landsteiner is associated with the discovery of Human Blood Groups. He was given the Nobel Prize for Physiology or Medicine in 1930 for his discovery in 1901 of, and outstanding work on, the blood groups.
5. Which among the following is the smallest Human Chromosome?
[A] Chromosome 10
[B] Chromosome 16
[C] Chromosome 20
[D] Chromosome 21
Show Answer
Correct Answer: D [Chromosome 21]
Notes:
Made up of 47 million nucleotides, Chromosome 21 is the smallest Human Chromosome.
6. Which of the following is the correct taxonomical arrangement?
[A] Species<Genus<Order<Class
[B] Genus<Species<Order<Class
[C] Species<Genus<Class<Order
[D] Species<Order<Class<Genus
Show Answer
Correct Answer: A [ Species<Genus<Order<Class ]
Notes:
First option is the correct answer.
7. Identify the organelle with the help of given information:
- It is a double membrane organelle.
- It is found only in eukaryotic cells.
- It is responsible for ATP production.
Select the correct option from codes given below:
[A] Centriole
[B] Lysosome
[C] Endoplasmic Reticulum
[D] Mitochondria
Show Answer
Correct Answer: D [ Mitochondria]
Notes:The organelle is the “Mitochondrion.” Here’s how the information matches:
- It has a double membrane: Mitochondria are enclosed by a double membrane structure.
- Found only in eukaryotic cells: Mitochondria are a characteristic feature of eukaryotic cells and are not found in prokaryotic cells.
- Responsible for ATP production: Mitochondria are often referred to as the “powerhouses” of the cell because they are responsible for producing ATP (adenosine triphosphate), which is the primary energy currency of the cell.
So, the correct answer is the “Mitochondrion.”
8. Which of the following drug is an antihistamine?
[A] Dimetapp
[B] Seldane
[C] Cetrizine
[D] All of the above
Show Answer
Correct Answer: D [ All of the above]
Notes:
All of the above belongs to a class of drugs known as antihistamines. They interfere with the natural action of histamine by competing with histamine for binding sites of receptor where histamine exerts its effect.
9. Which of following is the primary photosynthetic pigment?
[A] Chlorophyll-b
[B] Carotenoid
[C] Chlorophyll-a
[D] Anthocyanin
Show Answer
Correct Answer: C [Chlorophyll-a]
Notes:
Chlorophylla-a is the primary pigment for photosynthesis in plants. Chlorophyll a is a specific form of chlorophyll used in oxygenic photosynthesis. It absorbs most energy from wavelengths of violet-blue and orange-red light.
10. In humans, the sound is produced by the which of the following?
[A] epiglottis
[B] oesophagus
[C] larynx
[D] medulla
Show Answer
Correct Answer: C [larynx]
Notes:
The larynx is another name for the voice box. It’s a tube about 2 inches (5cm) long in adults. It sits above the windpipe (trachea) in the neck and in front of the food pipe.
