gram calorie
简明释义
克卡
英英释义
A gram calorie is the amount of energy needed to raise the temperature of one gram of water by one degree Celsius at a pressure of one atmosphere. | 克卡路里是指在一个大气压下,将一克水的温度提高一摄氏度所需的能量。 |
例句
1.One medium apple contains about 95 gram calories.
一个中等大小的苹果大约含有95克卡路里。
2.The energy content of this snack is 150 gram calories, which means it provides a quick boost of energy.
这款零食的能量含量为150克卡路里,意味着它能迅速提供能量。
3.During exercise, the body burns approximately 300 gram calories per hour.
在运动过程中,身体每小时大约消耗300克卡路里。
4.A slice of pizza can have around 285 gram calories, depending on the toppings.
一片披萨的热量可能在285克卡路里左右,具体取决于配料。
5.To lose weight, you need to consume fewer than 2000 gram calories per day.
为了减肥,你每天需要摄入少于2000克卡路里。
作文
Understanding the concept of a gram calorie is essential in the fields of nutrition and energy consumption. A gram calorie (also known as a small calorie) is defined as the amount of energy required to raise the temperature of one gram of water by one degree Celsius. This measurement is crucial for scientists and nutritionists alike, as it helps quantify the energy content in food and the energy expenditure of the human body.In everyday life, we often hear about calories in relation to food. However, it is important to distinguish between different types of calories. While the term 'calorie' is commonly used, it often refers to the kilocalorie (kcal), which is equivalent to 1,000 gram calories. This can lead to confusion when reading nutritional labels, as they typically list energy content in kilocalories. Understanding gram calories allows individuals to grasp the finer details of energy measurement, especially when studying metabolism or the energy balance equation.For example, if a food item contains 200 kilocalories, this translates to 200,000 gram calories. Knowing this conversion is vital for those who are tracking their dietary intake closely, whether for weight loss, bodybuilding, or overall health maintenance. It emphasizes the importance of being aware of the energy density of foods and how they contribute to our daily caloric needs.Moreover, the concept of gram calories extends beyond just food. It also plays a significant role in exercise physiology. When we engage in physical activity, our bodies burn energy measured in gram calories. For instance, running a mile might burn approximately 100 kilocalories, which equals 100,000 gram calories. Understanding how much energy we expend during various activities can help us adjust our diets accordingly to maintain a healthy lifestyle.In addition, measuring energy in gram calories can aid in scientific research, particularly in studies related to thermodynamics and bioenergetics. Researchers often need precise measurements of energy transfer in biological systems, and the gram calorie provides a standardized unit for such calculations. This precision is crucial for experiments that investigate metabolic rates, energy efficiency, and the impact of various nutrients on overall health.In conclusion, the gram calorie is a fundamental unit of energy that is integral to our understanding of nutrition, exercise, and scientific research. By recognizing the significance of gram calories, individuals can make informed choices about their dietary habits and physical activities. Whether you are a fitness enthusiast, a health-conscious individual, or a researcher, mastering the concept of gram calories will enhance your understanding of energy dynamics in our lives. As we continue to explore the relationship between energy intake and expenditure, the gram calorie remains a key player in the quest for optimal health and well-being.
理解克卡路里的概念在营养学和能量消耗领域至关重要。克卡路里(也称为小卡路里)被定义为将一克水的温度提高一摄氏度所需的能量。这一测量对于科学家和营养学家来说都是至关重要的,因为它有助于量化食物中的能量含量以及人体的能量消耗。在日常生活中,我们常常听到与食物相关的卡路里。然而,区分不同类型的卡路里是很重要的。虽然“卡路里”这个术语被广泛使用,但它通常指的是千卡路里(kcal),这相当于1,000个克卡路里。在阅读营养标签时,这可能会导致混淆,因为它们通常以千卡路里列出能量含量。理解克卡路里使个人能够掌握能量测量的细节,尤其是在研究代谢或能量平衡方程时。例如,如果某种食品含有200千卡路里,这就相当于200,000个克卡路里。了解这一转换对那些密切跟踪饮食摄入的人至关重要,无论是为了减肥、健美,还是为了整体健康维护。它强调了关注食物的能量密度及其如何影响我们每日卡路里需求的重要性。此外,克卡路里的概念不仅限于食物。它在运动生理学中也扮演着重要角色。当我们进行身体活动时,我们的身体燃烧的能量以克卡路里为单位。例如,跑一英里可能大约燃烧100千卡路里,相当于100,000个克卡路里。了解我们在各种活动中消耗多少能量可以帮助我们相应地调整饮食,以保持健康的生活方式。此外,以克卡路里测量能量可以帮助科学研究,特别是在与热力学和生物能量学相关的研究中。研究人员常常需要精确的生物系统中能量转移的测量,而克卡路里提供了一个标准化的单位用于此类计算。这种精确性对于研究代谢率、能量效率以及各种营养素对整体健康影响的实验至关重要。总之,克卡路里是一个基本的能量单位,对于我们理解营养、运动和科学研究至关重要。通过认识到克卡路里的重要性,个人可以对饮食习惯和身体活动做出明智的选择。无论你是健身爱好者、关注健康的人,还是研究人员,掌握克卡路里的概念将增强你对我们生活中能量动态的理解。在我们继续探索能量摄入与消耗之间的关系时,克卡路里仍然是追求最佳健康和福祉的关键角色。
相关单词