The conversion of food into energy takes place in [D] Mitochondria. Mitochondria are specialized organelles found in eukaryotic cells responsible for cellular respiration. During cellular respiration, glucose and other organic molecules undergo a series of biochemical reactions in the mitochondria tRead more
The conversion of food into energy takes place in [D] Mitochondria. Mitochondria are specialized organelles found in eukaryotic cells responsible for cellular respiration. During cellular respiration, glucose and other organic molecules undergo a series of biochemical reactions in the mitochondria to produce ATP (adenosine triphosphate), the primary energy currency of the cell. This process involves the citric acid cycle (Krebs cycle) and oxidative phosphorylation, which occur within the mitochondrial matrix and the inner mitochondrial membrane, respectively.
Mitochondria are often referred to as the “powerhouses” of the cell due to their role in generating ATP through the oxidation of food molecules. This energy is then utilized by the cell for various metabolic processes, including growth, maintenance, and cellular activities such as muscle contraction, nerve signaling, and biosynthesis.
A human being typically breathes [B] 20-25 times in a minute. This respiratory rate, known as the respiratory or breathing rate, refers to the number of breaths taken within one minute. It is influenced by various factors including age, physical activity level, health status, and environmental condiRead more
A human being typically breathes [B] 20-25 times in a minute. This respiratory rate, known as the respiratory or breathing rate, refers to the number of breaths taken within one minute. It is influenced by various factors including age, physical activity level, health status, and environmental conditions. At rest, adults generally breathe within the range of 12-20 breaths per minute, while infants may have a higher respiratory rate. During periods of physical exertion or stress, the respiratory rate may increase to meet the body’s demand for oxygen. Conversely, during sleep or periods of relaxation, the respiratory rate tends to decrease. The normal range of 20-25 breaths per minute represents an average value for adults at rest and is considered within the typical physiological range for respiratory frequency.
Deficiency of Vitamin A is the main cause of night blindness. This condition, medically known as nyctalopia, occurs due to the impaired function of the retina, affecting the ability to see in low light conditions. Vitamin A plays a crucial role in maintaining healthy vision, particularly in the adapRead more
Deficiency of Vitamin A is the main cause of night blindness. This condition, medically known as nyctalopia, occurs due to the impaired function of the retina, affecting the ability to see in low light conditions. Vitamin A plays a crucial role in maintaining healthy vision, particularly in the adaptation of the eyes to darkness. Without sufficient Vitamin A, the production of rhodopsin, a pigment necessary for low-light vision, is compromised, leading to night blindness. Thus, ensuring an adequate intake of Vitamin A-rich foods such as carrots, spinach, sweet potatoes, and liver can help prevent this deficiency and maintain optimal eye health.
The fat present under the skin layer in the human body acts as a barrier primarily against (b) Loss of body heat. This subcutaneous fat layer serves as insulation, helping to regulate body temperature by reducing heat loss from the body to the environment.
The fat present under the skin layer in the human body acts as a barrier primarily against (b) Loss of body heat. This subcutaneous fat layer serves as insulation, helping to regulate body temperature by reducing heat loss from the body to the environment.
Fat is stored in the human body (b) In adipose tissue. Adipose tissue, also known as body fat, is a specialized connective tissue primarily responsible for storing excess energy in the form of triglycerides. It is distributed throughout the body, with significant depots located beneath the skin (subRead more
Fat is stored in the human body (b) In adipose tissue. Adipose tissue, also known as body fat, is a specialized connective tissue primarily responsible for storing excess energy in the form of triglycerides. It is distributed throughout the body, with significant depots located beneath the skin (subcutaneous fat) and around internal organs (visceral fat).
Adipose tissue serves various functions beyond energy storage, including thermal insulation, cushioning of organs, and hormone regulation. Excess calorie intake leads to the accumulation of triglycerides in adipocytes, the specialized cells within adipose tissue, resulting in weight gain and increased body fat percentage.
In which part of the cell does the conversion of food into energy take place?
The conversion of food into energy takes place in [D] Mitochondria. Mitochondria are specialized organelles found in eukaryotic cells responsible for cellular respiration. During cellular respiration, glucose and other organic molecules undergo a series of biochemical reactions in the mitochondria tRead more
The conversion of food into energy takes place in [D] Mitochondria. Mitochondria are specialized organelles found in eukaryotic cells responsible for cellular respiration. During cellular respiration, glucose and other organic molecules undergo a series of biochemical reactions in the mitochondria to produce ATP (adenosine triphosphate), the primary energy currency of the cell. This process involves the citric acid cycle (Krebs cycle) and oxidative phosphorylation, which occur within the mitochondrial matrix and the inner mitochondrial membrane, respectively.
See lessMitochondria are often referred to as the “powerhouses” of the cell due to their role in generating ATP through the oxidation of food molecules. This energy is then utilized by the cell for various metabolic processes, including growth, maintenance, and cellular activities such as muscle contraction, nerve signaling, and biosynthesis.
How many times does a human being breathe in a minute?
A human being typically breathes [B] 20-25 times in a minute. This respiratory rate, known as the respiratory or breathing rate, refers to the number of breaths taken within one minute. It is influenced by various factors including age, physical activity level, health status, and environmental condiRead more
A human being typically breathes [B] 20-25 times in a minute. This respiratory rate, known as the respiratory or breathing rate, refers to the number of breaths taken within one minute. It is influenced by various factors including age, physical activity level, health status, and environmental conditions. At rest, adults generally breathe within the range of 12-20 breaths per minute, while infants may have a higher respiratory rate. During periods of physical exertion or stress, the respiratory rate may increase to meet the body’s demand for oxygen. Conversely, during sleep or periods of relaxation, the respiratory rate tends to decrease. The normal range of 20-25 breaths per minute represents an average value for adults at rest and is considered within the typical physiological range for respiratory frequency.
See lessDeficiency of which vitamin is the main cause of night blindness?
Deficiency of Vitamin A is the main cause of night blindness. This condition, medically known as nyctalopia, occurs due to the impaired function of the retina, affecting the ability to see in low light conditions. Vitamin A plays a crucial role in maintaining healthy vision, particularly in the adapRead more
Deficiency of Vitamin A is the main cause of night blindness. This condition, medically known as nyctalopia, occurs due to the impaired function of the retina, affecting the ability to see in low light conditions. Vitamin A plays a crucial role in maintaining healthy vision, particularly in the adaptation of the eyes to darkness. Without sufficient Vitamin A, the production of rhodopsin, a pigment necessary for low-light vision, is compromised, leading to night blindness. Thus, ensuring an adequate intake of Vitamin A-rich foods such as carrots, spinach, sweet potatoes, and liver can help prevent this deficiency and maintain optimal eye health.
See lessThe fat present under the skin layer in the human body acts as a barrier against which of the following?
The fat present under the skin layer in the human body acts as a barrier primarily against (b) Loss of body heat. This subcutaneous fat layer serves as insulation, helping to regulate body temperature by reducing heat loss from the body to the environment.
The fat present under the skin layer in the human body acts as a barrier primarily against (b) Loss of body heat. This subcutaneous fat layer serves as insulation, helping to regulate body temperature by reducing heat loss from the body to the environment.
See lessFat is stored in the human body
Fat is stored in the human body (b) In adipose tissue. Adipose tissue, also known as body fat, is a specialized connective tissue primarily responsible for storing excess energy in the form of triglycerides. It is distributed throughout the body, with significant depots located beneath the skin (subRead more
Fat is stored in the human body (b) In adipose tissue. Adipose tissue, also known as body fat, is a specialized connective tissue primarily responsible for storing excess energy in the form of triglycerides. It is distributed throughout the body, with significant depots located beneath the skin (subcutaneous fat) and around internal organs (visceral fat).
See lessAdipose tissue serves various functions beyond energy storage, including thermal insulation, cushioning of organs, and hormone regulation. Excess calorie intake leads to the accumulation of triglycerides in adipocytes, the specialized cells within adipose tissue, resulting in weight gain and increased body fat percentage.