Admin Table of Contents
- 1 What plays a central role as an energy source in humans?
- 2 Which substance plays a central role as an energy source in humans and as cellulose in plants?
- 3 What is the importance of water in biology?
- 4 What is the best description of activation energy?
- 5 Which is the best description of activation energy?
- 6 Why does the human body need water to function?
- 7 What is the role of water in body temperature regulation?
- 8 Why is water important to the structure of a cell?
What plays a central role as an energy source in humans?
The monosaccharide glucose has a central role as an energy source for cells.
Which substance plays a central role as an energy source in humans and as cellulose in plants?
The most abundant and versatile of these monosaccharides is glucose. This versatile molecule then plays many roles in the life of the plant – and the lives of animals that eat them. A primary role for the glucose molecule is to act as a source of energy; a fuel.
What substance plays a central role as an energy source in humans and other multicellular organisms?
Sugars and fats provide the major energy sources for most non-photosynthetic organisms, including humans.
What is the importance of water in biology?
On a biological level, water’s role as a solvent helps cells transport and use substances like oxygen or nutrients. Thus, water’s role as a solvent facilitates the transport of molecules like oxygen for respiration and has a major impact on the ability of drugs to reach their targets in the body.
What is the best description of activation energy?
activation energy, in chemistry, the minimum amount of energy that is required to activate atoms or molecules to a condition in which they can undergo chemical transformation or physical transport.
Why is carbon central to the structure of all biological molecules?
Why is carbon central to the structure of all biological molecules? Carbon is able to form these large molecules because of its electron configuration; it has four valence electrons in a shell and they all form covalent bonds with other atoms.
Which is the best description of activation energy?
The best definition of activation energy is that activation energy is the energy required to bind a substrate to an active site (option C).
Why does the human body need water to function?
The human body cannot function unless this is maintained within a certain range. Water helps achieve this in two ways. Since water is slow to change temperature and is efficient at storing heat, the amount of water in the body composition, 60 to 75 percent, is a natural temperature regulator.
What is the importance of water in the development of energy?
Water holds the key to development of energy infrastructures and remains fundamental throughout the lifecycle of energy infrastructure and resource development, from extraction of raw materials, purification, washing and treatment of raw materials to coolants in nuclear or thermal power plants to being a fuel for hydropower plants.
What is the role of water in body temperature regulation?
Body Temperature Regulation. The human body cannot function unless this is maintained within a certain range. Water helps achieve this in two ways. Since water is slow to change temperature and is efficient at storing heat, the amount of water in the body composition, 60 to 75 percent, is a natural temperature regulator.
Why is water important to the structure of a cell?
Water Supports Cellular Structure Water also has an important structural role in biology. Visually, water fills cells to help maintain shape and structure (Figure 2). The water inside many cells (including those that make up the human body) creates pressure that opposes external forces, similar to putting air in a balloon.