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121 Biology GK MCQ question & Answer in English हिन्दी
Biology is the science that studies life and its physicochemical processes. The research is separated into numerous branches for convenience, including botany, zoology, morphology, etc. Let's do a fun quiz about life science that will help us better our knowledge and prepare for competitive exams.
In humans, which type of cell division is responsible for producing gametes (sperm and egg cells)?
Meiosis is the type of cell division that creates egg and sperm cells. Mitosis is a fundamental process for life. During mitosis, a cell duplicates all of its contents, including its chromosomes, and splits to form two identical daughter cells.
Which of the following is responsible for breaking down cellular waste and cellular debris?
Lysosomes function as the digestive system of the cell, serving both to degrade material taken up from outside the cell and to digest obsolete components of the cell itself.
What is the main function of the nervous system?
It is an organ system that is composed of the brain, spinal cord, nerves, ganglia, and receptors. This system is responsible for creating, sending signals throughout the body and processing them, and sending the response as signals to the effective organ.
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Which process allows plants to lose water vapor from their leaves, creating a pulling force that helps transport water from roots to leaves?
Transpiration is the loss of water from a plant in the form of water vapor. Water is absorbed by roots from the soil and transported as a liquid to the leaves via xylem. In the leaves, small pores allow water to escape as a vapor and CO2 to enter the leaf for photosynthesis.
Which part of a cell is responsible for protein synthesis?
Ribosomes are the important cell organelles that are involved in protein synthesis. Proteins are required for the proper functioning of the cell. Ribosomes have RNA and proteins which help in converting genetic code into proteins.
Which scientist is known for proposing the theory of natural selection as a mechanism for evolution?
Charles Darwin was a British naturalist who proposed the theory of biological evolution by natural selection.
Which kingdom of organisms includes multicellular eukaryotes that obtain nutrients through absorption?
A multicellular/unicellular eukaryotic organism that obtains its food by absorbing nutrients from the environment belongs to the kingdom Fungi.
Which of the following is responsible for carrying oxygen throughout the body?
Hemoglobin (Heme + Globin) The protein hemoglobin is a molecule which is responsible for carrying almost all of the oxygen in the blood. It is composed of four subunits, each with a heme group plus a globin chain.
What is the process by which plants convert light energy into chemical energy in the form of glucose?
Photosynthesis is the process in which light energy is converted to chemical energy in the form of sugars. In a process driven by light energy, glucose molecules (or other sugars) are constructed from water and carbon dioxide, and oxygen is released as a byproduct.
Which organelle is responsible for producing energy in a eukaryotic cell?
A mitochondrion is a round to oval-shaped organelle found in the cells of almost all eukaryotic organisms. It produces energy, known as ATP, for the cell through a series of chemical reactions.
Which one of the following eye conditions is referred to as "lazy eye"?
Which hormone is administered as a last resort in the event of a heart attack?
The water that is easily accessible to plants for root absorption is
Which kingdom are common bacteria a part of?
The importance of the skeletal system is due in part to
Which of the following muscle fiber types has many nuclei?
bases containing nitrogen in DNA and RNA?
Which of the following determines the sex of an offspring?
How many amino acids are required to make one protein?
Which one of the following systems transports blood from the heart to the kidneys?
Which phrase best encapsulates genetic mutations?
Which of the following is a disease caused by protozoa?
Which best describes the transformation in bacteria?
Rajat struggles with hyperopia. The ophthalmologist will advise what kind of lens to correct his vision.
The variable number of tandem repeats (VNTRs) in the DNA molecule is highly useful in
Which of the following contributes significantly to photosynthesis?
For a significant infestation, the best way of eradication is
How many parathyroid glands are found on the human thyroid's reverse side?
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