Biology MCQs

Notes:
Cinnamon is obtained from the inner bark of cinnamon trees. Specifically, the bark is peeled off during the rainy season when it is still moist and flexible. After being removed, the bark is processed and dried to produce the spice we recognize as cinnamon.

Notes:
The acidic medium of gastric juice and the enzyme pepsin break down proteins into smaller parts known as peptones. Pepsin is the main enzyme involved in protein digestion. It breaks down proteins into smaller peptides and amino acids that can be easily absorbed in the small intestine.
The gastric juice contains hydrochloric acid, which helps maintain the pH in the range of 1.5 to 2.5. This pH range is very acidic and is necessary for optimum activity of pepsin. The hydrochloric acid converts inactive enzymes (zymogens) into active enzymes.
The gastric glands in the stomach secrete the enzyme pepsin. When pepsinogen is released into the stomach and mixed with gastric juice, it is converted into pepsin.

Notes:
B vitamins are a class of water-soluble vitamins that play important roles in cell metabolism. This is the correct statement as most of the B Vitamins are water-soluble. They are not primarily organic acids nor are they mostly synthesized in the body. They’re found in highest abundance in meat, and dietary supplements containing all eight are referred to as a vitamin B complex, which indicates that they’re more often ingested rather than synthesized.

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The corpus callosum is a large, C-shaped nerve fiber bundle which is found beneath the cerebral cortex. It stretches across the midline of the brain. IT connects the left and right cerebral hemispheres.

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The pancreatic islets or islets of Langerhans are the regions of the pancreas that contain its endocrine which is also called as hormone-producing cells. They are also known as the insulin-producing tissue.

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Mitosis is a fundamental process for life. During mitosis, a cell splits to form two identical daughter cells by duplicating all of its contents, including its chromosomes. Prophase, metaphase, anaphase & telophase are the stages of
Mitosis.

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Nitrite reductase refers to any of several classes of enzymes that catalyze the reduction of nitrite. They are enzymes that catalyze reduction of nitrate to nitrite using a molybdenum cofactor.

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DNA test is most suitable to judge paternity. It looks at specific locations of a person’s genome, in order to find or verify
ancestral genealogical relationships. It can also be used to estimate the ethnic mixture of an individual.

Notes:
Mumps is caused by Virus. Mumps is a viral infection that affects the salivary glands that’s easily preventable by a vaccine. Initial signs and symptoms include fever, muscle pain, headache, poor appetite, and feeling generally unwell.

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Mucor is a microbial genus of approximately 40 species of moulds commonly found in soil, digestive systems, plant surfaces. They also grow on common bread. Mucor may cause infections in man, frogs, amphibians, cattle, and swine.