Biology miscellaneous
- Which of the following is the sweetest sugar ?
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Sucrose has a relative sweetness of 1.0, while Splenda (Sucralose) of the same quantity is about 600 times sweeter. Fructose is the sweetest of all natural sugar types, with a relative sweetness of 1.73. Xylitol is roughly as sweet as sucrose. Glucose, which is the main component of starch, has a relative sweetness of 0.6-0.7. Of all the sugars, Lactose is the least sweet, with a relative sweetness of 0.16.
Correct Option: C
Sucrose has a relative sweetness of 1.0, while Splenda (Sucralose) of the same quantity is about 600 times sweeter. Fructose is the sweetest of all natural sugar types, with a relative sweetness of 1.73. Xylitol is roughly as sweet as sucrose. Glucose, which is the main component of starch, has a relative sweetness of 0.6-0.7. Of all the sugars, Lactose is the least sweet, with a relative sweetness of 0.16.
- The normal RBC count in adult male is
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An RBC count is a blood test that tells how many red blood cells (RBCs) we have. RBCs contain hemoglobin, which carries oxygen. How much oxygen our body tissues get depends on how many RBCs we have and how well they work. The general the range is as follows: Male: 4.7 to 6.1 million cells per microliter (cells/mcL); and Female: 4.2 to 5.4 million cells/mcL.
Correct Option: B
An RBC count is a blood test that tells how many red blood cells (RBCs) we have. RBCs contain hemoglobin, which carries oxygen. How much oxygen our body tissues get depends on how many RBCs we have and how well they work. The general the range is as follows: Male: 4.7 to 6.1 million cells per microliter (cells/mcL); and Female: 4.2 to 5.4 million cells/mcL.
- The vitamin that helps to prevent infections in the human body is
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Vitamin C or L-ascorbic acid, or simply ascorbate (the anion of ascorbic acid), is an essential nutrient for humans and certain other animal species. Vitamin C is found in high concentrations in immune cells, and is consumed quickly during infections. It is not certain how vitamin C interacts with the immune system; it has been hypothesized to modulate the activities of phagocytes, the production of cytokines and lymphocytes, and the number of cell adhesion molecules in monocytes.
Correct Option: C
Vitamin C or L-ascorbic acid, or simply ascorbate (the anion of ascorbic acid), is an essential nutrient for humans and certain other animal species. Vitamin C is found in high concentrations in immune cells, and is consumed quickly during infections. It is not certain how vitamin C interacts with the immune system; it has been hypothesized to modulate the activities of phagocytes, the production of cytokines and lymphocytes, and the number of cell adhesion molecules in monocytes.
- Sweat glands in mammals are primarily concerned with
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Sweat glands, or sudoriferous glands, are small tubular structures of the skin that produce sweat. The cause of sweating and body odor stems from our body’s temperature regulation system, specifically our sweat glands. Sweating helps maintain our body temperature, hydrates our skin and balances our body fluids and electrolytes, chemicals in our body such as sodium and calcium.
Correct Option: C
Sweat glands, or sudoriferous glands, are small tubular structures of the skin that produce sweat. The cause of sweating and body odor stems from our body’s temperature regulation system, specifically our sweat glands. Sweating helps maintain our body temperature, hydrates our skin and balances our body fluids and electrolytes, chemicals in our body such as sodium and calcium.
- Dinosaurs were
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Although the word dinosaur means “terrible lizard,” the name is somewhat misleading, as dinosaurs are not lizards. Rather, they represent a separate group of reptiles with a distinct upright posture not found in lizards, and many extinct forms did not exhibit traditional reptilian characteristics. Through the first half of the 20th century, before birds were recognized to be dinosaurs, most of the scientific community believed dinosaurs to be sluggish and cold-blooded. Most research conducted since the 1970s, however, has indicated that ancient dinosaurs, particularly the carnivorous groups, were active animals with elevated metabolisms and numerous adaptations for social interaction.
Correct Option: D
Although the word dinosaur means “terrible lizard,” the name is somewhat misleading, as dinosaurs are not lizards. Rather, they represent a separate group of reptiles with a distinct upright posture not found in lizards, and many extinct forms did not exhibit traditional reptilian characteristics. Through the first half of the 20th century, before birds were recognized to be dinosaurs, most of the scientific community believed dinosaurs to be sluggish and cold-blooded. Most research conducted since the 1970s, however, has indicated that ancient dinosaurs, particularly the carnivorous groups, were active animals with elevated metabolisms and numerous adaptations for social interaction.