General Science Multiple choice questions for GK paper in SSC, NDA, CDS, UPSC, UPPSC and State PSC Examinations. These questions are part of GKToday’s 35000+ MCQs Bank Course in GKToday Android App
1. In context with biology, which among the following is a Zoophyte?
[A] A plant that resembles an animal
[B] An animal that resembles a plant
[C] A plant that grows on an animal
[D] An animal that grows on a plant
Show Answer
Correct Answer: B [An animal that resembles a plant]
Notes:
A zoophyte is an animal that visually resembles a plant.
2. Which among the following is a common end product of Anaerobic Respiration?
[A] Acetic Acid
[B] Carbonic Acid
[C] Lactic Acid
[D] Hydrochloric Acid
Show Answer
Correct Answer: C [Lactic Acid]
Notes:
Lactic Acid is a common end product of Anaerobic Respiration. Anaerobic respiration is the type of respiration through which cells can breakdown sugars to generate energy in the absence of oxygen.
3. William Harvey, Alexander Fleming & Louis Pasteur are related to respectively __________?
[A] Vaccination, Blood Circulation, Penicillin
[B] Penicillin, Blood circulation , Vaccination
[C] Blood Circulation, Penicillin, Vaccination
[D] Vaccination,Blood Circulation, Penicillin
Show Answer
Correct Answer: C [Blood Circulation, Penicillin, Vaccination]
Notes:
William Harvey, Alexander Fleming & Louis Pasteur are related to blood circulation, penicillin, vaccination respectively. Louis Pasteur is renowned for his discoveries of the principles of vaccination, microbial fermentation and pasteurization.
4. Which among the following is essential for both activation and action of thrombin ?
[A] Na+
[B] Cl-
[C] Ca2+
[D] Mg2+
Show Answer
Correct Answer: C [Ca2+]
Notes:
Thrombin is a naturally occurring enzyme that converts fibrinogen into fibrin, which is an integral step in clot formation. Ca2+ is essential for both activation and action of thrombin.
5. Which among the following indicates Vitamin B12?
[A] Niacin
[B] Pyridoxine
[C] Cobalamine
[D] Thiamine
Show Answer
Correct Answer: C [Cobalamine]
Notes:
Cobalamine indicates Vitamin B12. It is a water-soluble vitamin and plays an essential role in the production of your red blood cells and DNA, as well as the proper functioning of our nervous system.
6. A particular cell organelle is sometimes referred certain enzymes that can break down the cell components or even the whole cell. which one of the following is such an organelle ?
[A] Lysosome
[B] Mesosome
[C] Phagosome
[D] Ribosome
Show Answer
Correct Answer: A [Lysosome]
Notes:
Lysosomes are membrane-bound cell organelles that contains digestive enzymes and are involved with various cell processes. They break down excess or worn-out cell parts and may be used to destroy invading viruses and bacteria.
7. The scientific name of Onion is Allium cepa. What does cepa denotes here?
[A] Class
[B] Family
[C] Species
[D] Genus
Show Answer
Correct Answer: C [Species]
Notes:- Species is a group of individuals with similar morphological characters. They are able to breed among themselves and produce their own kind.
- Cepa in Allium cepa (the scientific name of Onion) denotes species in the level of Taxonomic Hierarchy.
8. Which of the following units is the smallest in terms of length?
[A] micron
[B] nanometer
[C] fermi
[D] angstrom
Show Answer
Correct Answer: C [ fermi ]
Notes:
Out of the given options, fermi is the smallest unit for measurement of distance. 1 micron = 10-6 m 1 nanometre = 10-9 m 1 angstrom = 10-10m 1 fermi = 10-15m The above four units are used for the measurement of small distances.
9. What is represented by the slope of a straight line joining two points on a velocity-time graph?
[A] Average velocity
[B] Instantaneous acceleration
[C] Average acceleration
[D] None of the above
Show Answer
Correct Answer: C [Average acceleration]
Notes:
The slope of a straight line joining two points on a velocity-time graph gives the average acceleration between these two points. Depending on the sign of slope, the average acceleration can be positive or negative.
10. The forces acting at a point are called as:
[A] Collinear forces
[B] Coplanar forces
[C] Concurrent forces
[D] Unit forces
Show Answer
Correct Answer: C [Concurrent forces]
Notes:
The forces which are acting at a point are called as concurrent forces. Note: When concurrent forces in equilibrium act on a body, the state of the body shall remain unchanged i.e. if the body is at rest, it will continue to be at rest. Similarly, a body will continue to move uniformly along the same straight line, if concurrent forces in equilibrium are applied on the body.
