Biology MCQs

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Monosaccharides are simple carbohydrates molecules that cannot be broken down into smaller molecules of other carbohydrates. Glucose and fructose are examples of Monosaccharides.

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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.

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Polymerase enzyme plays an important role in adding the building blocks to the primer in a sequence determined by the DNA template. It synthesizes long chains of polymers or nucleic acids.

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The mitochondria are common in Eukaryotic cells. Bacteria is Prokaryotic

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The protein responsible for the maintenance of osmotic pressure in the blood is albumin. Albumin, produced by the liver, constitutes about 60% of the total protein in plasma and plays a crucial role in regulating oncotic pressure, which helps retain fluid within the blood vessels. Low levels of albumin can lead to edema and other complications. In contrast, beta macroglobulin and gamma globulin (immunoglobulins) are involved in immune responses and do not primarily function in osmotic pressure regulation.

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Bombay Blood Group is an extremely rare ABO group, called so because it was first discovered among some people in Bombay. Their red cells lack ABH antigens and their sera contain anti-A and anti-B and anti-H. The anti-H would not be detected in the ABO group but would be detectable in pretransfusion tests. People who have Bombay phenotype can donate to any member of the ABO blood group system (unless some other blood factor gene, such as Rhesus, is incompatible), but they cannot receive any member of the ABO blood group system`s blood (which always contains one or more of A and B and H antigens), but only from other people who have Bombay phenotype

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In mammals and the more complex life forms, the two lungs are located near the backbone on either side of the heart.Mammalian lungs have an enormous number of minute alveoli (air sacs).

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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.

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Sexual reproduction in flowering plants involves the production of male and female gametes, the transfer of the male gametes to the female ovules in a process called pollination. After pollination occurs, fertilization happens and the ovules grow into seeds within a fruit.

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Typhoid fever is a systemic infection caused by bacteria Salmonella typhi, usually through ingestion of contaminated food or water. The acute illness is characterized by prolonged fever, headache, nausea, loss of appetite, and constipation or sometimes diarrhoea.