1. Excessive consumption of which substance may lead to the development of cirrhosis?
[A] Alcohol
[B] Tobacco
[C] Caffeine
[D] Carbonated soft drinks
Show Answer
Correct Answer: A [Alcohol]
Notes:
Cirrhosis is a late stage of scarring (fibrosis) of the liver caused by many forms of liver diseases and conditions, such as hepatitis and chronic alcoholism. Alcoholism is the most common cause of cirrhosis in the world. It occurs when the liver is damaged over time and cannot function properly, leading to scarring and eventually cirrhosis.
2. Which among the following are the building blocks of human body ?
[A] Muscles
[B] Cells
[C] Neurons
[D] Proteins
Show Answer
Correct Answer: B [Cells]
Notes:
The building blocks of the human body are cells. Cells are the smallest unit of life and they perform all the functions necessary for the body to function. There are many different types of cells in the body, including muscle cells, nerve cells, and blood cells. These cells are organized into tissues, which are groups of similar cells that work together to perform a specific function. Tissues are then organized into organs, which are structures made up of multiple tissues that work together to perform a specific function, such as the heart or the liver. Organs are then organized into systems, which are groups of organs that work together to perform a specific function, such as the respiratory system or the circulatory system. Together, these building blocks allow the body to function as a whole.
3. Which of the following plant growth hormone was recognized by Japanese scientists?
[A] Auxin
[B] Gibberellins
[C] Abscisic acid
[D] Cytokinin
Show Answer
Correct Answer: B [Gibberellins]
Notes:
Gibberellins, first recognized in 1926 by a Japanese scientist, Eiichi Kurosawa. He was studying foolish seedling disease in Rice called as bakanae
4. What name has been given to the fear of crossing roads?
[A] Arthrophobia
[B] Atychiphobia
[C] Aichmophobia
[D] Agyrophobia
Show Answer
Correct Answer: D [Agyrophobia]
Notes:
The fear of crossing roads is called Agyrophobia. This phobia is considered to be independent from the fear of cars, as even crossing a deserted intersection still initiates the fear reaction.
5. Gargling with a solution of table salt is known to provide relief for a sore throat because ____ ?
[A] It kills bacteria
[B] It works as analgesic
[C] It dehydrates water from inflammatory tissues by Osmosis
[D] None of the above reasons
Show Answer
Correct Answer: C [ It dehydrates water from inflammatory tissues by Osmosis]
Notes:
Gargling with a solution of table salt is known to provide relief for a sore throat because it dehydrates water from inflammatory tissues by Osmosis. Gargling with salt water helps cure the throat infection.
6. Human body has how many vertebrae?
[A] 32
[B] 35
[C] 33
[D] 47
Show Answer
Correct Answer: C [33]
Notes:
The human vertebral column is made of vertebrae that collectively protect the spinal cord and support the entire skeletal framework of the body. The human body has a total of 33 vertebrae. These consist of 7 cervical vertebrae in the neck, 12 thoracic vertebrae in the upper back, 5 lumbar vertebrae in the lower back, 5 sacral vertebrae in the pelvis, and 4 coccygeal vertebrae in the tailbone. These vertebrae are essential for providing support and flexibility to the spine.
7. Which of the following Vitamin is responsible for anti-sterile activities?
[A] Vitamin A
[B] Vitamin B
[C] Vitamin E
[D] Vitamin D
Show Answer
Correct Answer: C [Vitamin E]
Notes:Vitamin E is known as anti-sterility vitamin or fertility vitamin. It is chemically called as tocopherol. Vitamin E deficiency occurs rarely in adults. Much like vitamin C, vitamin E is another powerful anti-oxidant. Vitamin E is used during testosterone synthesis. Sperm production or spermatogenesis requires vitamin E as well as zinc. Following symptoms have been associated with vitamin E deficiency in humans:
- Muscular weakness & dystrophy, nocturnal muscle cramps
- Neurological disorders
- Degeneration of liver (hepatic necrosis)
- Shortened life-span of RBCs
8. Which one of the following is useful for biological control of pests?
[A] Honey bees and locusts
[B] Scorpions and spiders
[C] Wasps and birds
[D] Parrots and kites
Show Answer
Correct Answer: B [Scorpions and spiders]
Notes:
Spiders, mites, scorpions, and several related groups are not insects, but belong to the arthropod class Arachnida. About 15 families of spiders are frequently encountered in crops, where they provide benefit as natural control agents.
9. In the branch of biology, what is the transmission of paternal traits to progeny called?
[A] Genetics
[B] Heredity
[C] Gerontology
[D] Genetic Engineering
Show Answer
Correct Answer: B [Heredity]
Notes:
The transmission of characteristics from parent to offspring is called heredity, and can be inferred from inherited characteristics.
10. Exobiology refers to the study of which of the following?
[A] Organism
[B] Endodermis
[C] Life in the air
[D] Life on the other planets
Show Answer
Correct Answer: D [Life on the other planets]
Notes:
Exobiology is the study of the origin, evolution and distribution of life in the context of cosmic evolution.