General Science - Biology MCQs
1. Which of the following statements is incorrect about the Lysosome?
[A] It is a membrane-bound organelle found in plant as well as animal cells
[B] It is also called the suicidal bag of the cell
[C] It helps in the synthesis of protein
[D] It acts as a dispatch station of protein products received from the endoplasmic reticulum (ER)
Show Answer
Correct Answer: D [It acts as a dispatch station of protein products received from the endoplasmic reticulum (ER)]
Notes:
Golgi apparatus acts as a dispatch station of protein products received from the endoplasmic reticulum (ER). Lysosomes are membrane-bound organelles. They are also called suicide bags because in case of disturbance of their cellular metabolism they digest their own cell by releasing own enzymes. Though lysosomes are not commonly-found in plant cells, but some plant cells do contain lysosomes.
2. Which of the following protects the body against infectious disease and foreign invaders?
[A] Leukocytes
[B] Red blood cells
[C] Endoplasmic reticulum (ER)
[D] Golgi apparatus
Show Answer
Correct Answer: A [Leukocytes]
Notes:
White blood cells (WBCs), also called leukocytes or leucocytes, are the cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders. All white blood cells are produced and derived from multipotent cells in the bone marrow known as hematopoietic stem cells.
3. Presence of which among the following salts in water causes “Blue Baby Syndrome”?
[A] Sulphates
[B] Chlorides
[C] Carbonates
[D] Nitrates
Show Answer
Correct Answer: D [Nitrates]
Notes:
Blue Baby Syndrome is caused due to contamination nitrate contamination in ground water.
4. In which of the following plants, you can find Leghemoglobin?
[A] Wheat
[B] Soyabean
[C] Potato
[D] Brinjal
Show Answer
Correct Answer: B [Soyabean]
Notes:
Legume nodules possess special protein called LEGHEMOGLOBIN. The synthesis of leghemoglobin is the result of symbiosis because neither bacteria alone nor legume plant alone possess the protein
5. Which part of the Human Body stores Glycogen?
[A] Liver
[B] Intestine
[C] Pancreas
[D] Skin
Show Answer
Correct Answer: A [Liver]
Notes:
In liver Simple sugars (monosaccharides) which are in excess are converted into complex polysaccharides like glycogen
6. Which among the following plants is used as Green Manure?
[A] Wheat
[B] Sunhemp
[C] Cotton
[D] Rice
Show Answer
Correct Answer: B [Sunhemp]
Notes:
Sunhemp is used as Green Manure. Sunhemp as a green manure is needed be ploughed in 2 months after sowing when the plants begin to flower as it decomposes more rapidly and it will have a positive N balance at this stage.
7. Which among the following Vitamins helps in clotting of Blood?
[A] Vitamin C
[B] Vitamin D
[C] Vitamin E
[D] Vitamin K
Show Answer
Correct Answer: D [Vitamin K]
Notes:
Vitamin K is naturally produced by the bacteria in the intestines, and plays an essential role in normal blood clotting, promoting bone health, and helping to produce proteins for blood, bones, and kidneys.
8. In which among the following diseases, Seed Therapy is used now a days for treatment?
[A] AIDS
[B] Tuberculosis
[C] Cancer
[D] Asthama
Show Answer
Correct Answer: C [Cancer]
Notes:
Seed Therapy which is based on Sujok Therapy deals with the application of seeds or other parts of plants and attaching it with a tape at a corresponding point in the hand or foot of a person feeling pain. This is used now-a-days for cancer treatment.
9. Least generative power is a feature of which among the following cells of Human Body?
[A] Brain
[B] Bones
[C] Skin
[D] Liver
Show Answer
Correct Answer: A [Brain]
Notes:
The human brain is the central organ of the human nervous system, and with the spinal cord makes up the central nervous system. It is considered to have the Least generative power.
10. Chronic exposure to which among the following minerals/ salts in groundwater may cause Black-Foot Disease?
[A] Fluoride
[B] Nitrates
[C] Arsenic
[D] Lead
Show Answer
Correct Answer: C [Arsenic]
Notes:
Arsenicosis or Black foot is caused by exposure over a period of time to Arsenic in drinking water. It may also be due to intake of arsenic via food or air. Kindly note that Itai-itai disease is caused by Cadmium poisoning.
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