Correct answer: Act as a catalysts in a chemical reactions of cells, interact with specific substrates like a lock and key, can lower the required activation energy for reaction in living organisms
Enzymes are the protein molecules that act as biological catalyst, which speed up the rate of chemical reaction by lowering the activation energy of the chemical reaction which are required to carry out the chemical reactions.
Enzymes are specific in nature, which means they have a specific shape and only a specific substrate will fit into its active site and carry out the reactions.
All the biochemical reactions which are occurring inside the body require enzyme, without enzyme the rate of biochemical reaction would be much slower as compared to the reactions taking place in presence of enzyme.
Example: Lipase:- An enzyme which found in living organism which help in the digestion and processing of lipid, fats and oils.
Enzymes act as a catalyst in a chemical reaction of cells, interact with specific substrates like a lock and key, and lower the required activation energy for reaction in living organisms, hence options 2, 3, and 4 are correct.
Proteins called enzymes serve as biological catalysts by quickening chemical processes. Substrates are the molecules that enzymes may interact with, and the enzyme changes the substrates into other molecules known as products.
In human bodies, enzymes assist metabolic processes. From breathing to digestion, they support.
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thymine
cytosine
The RNA gets its information from DNA to synthesise the proteins. It is different from DNA also due to the difference in one nitrogen basis as uracil. The thymine, the nitrogen basis that is only present in DNA is replaced with uracil to form RNA coding. The uracil also contains the same features as thymine has in DNA strains. Uracil makes a double H-bond with the adenine but does not contain CH4 group which is present in thymine.
The statement is - True.
The frost wedging is one of the processes that contribute to the physical weathering of the rocks. Basically, if the rock has a crack, water manages to get into that crack. On the places where there's winters and the temperature drops bellow zero, the water in the crack of the rock freezes. Because the ice is expanding, it creates a lot of pressure inside the rock. Because of this pressure, the rock eventually cracks into two or more pieces. There have even been recorded cases where this form of weathering resulted in explosion of the rocks, where the pressure inside the rock was so big, that it has literary exploded, but that is very, very rare.
Both viruses and animal cells possess genetic material in the form of nucleic acids.
Viruses are infectious agents that consist of genetic material (either DNA or RNA) enclosed within a protein coat called a capsid. Some viruses also have an outer envelope derived from the host cell's membrane. Viruses lack cellular structures and cannot carry out essential life processes on their own. They depend on host cells to replicate and produce new viral particles.
Animal cells, on the other hand, are the fundamental units of structure and function in animals. They contain a nucleus that houses the genetic material, which is composed of DNA. Animal cells also possess various organelles and structures that carry out specific functions within the cell.
Despite their fundamental differences, viruses and animal cells both have genetic material in the form of nucleic acids. However, it is important to note that while animal cells use their genetic material to carry out the necessary functions of life, viruses rely on host cells to replicate and produce new viral particles.
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Cells need energy to do basic functions which are necessary for living. Cells need energy to move, synthesize proteins, divide, transport the materials, and to do the work.
Cells require energy which they get from the food they eat. The food is utilized in the production of energy in the form of ATP. This ATP is produced by the process of cellular respiration in the mitochondria of cell.
Cells require energy to do the basic functions which are important to sustain life. These include the following functions:
1. Basal Metabolism: Basal metabolism is the minimal amount of energy which is needed to keep the body functioning and alive while the body is at rest.
2. Body Composition: Body composition is one determinant of energy requirements. It is the energy requirement for the formation of new cells i.e., cell division which maintains the cell number constant in body.
3. Digestion and Absorption: Digestion and absorption are the basic processes which are used to produce energy in the form of ATP through cellular respiration in the mitochondria of cell.
4. Physical Energy: For the production of physical energy which is required for causing movement, energy is required.
5. Mental Energy: To do mental work such as learning, thinking, etc. Energy is needed by the cells.
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The sweat and oil glands play important roles in regulating body temperature and maintaining skin health.
Sweat glands, also known as sudoriferous glands, serve to regulate body temperature by producing sweat, a mixture of water, salt, and metabolic waste products. Sweating helps cool the body through evaporation and eliminates waste. Oil glands, or sebaceous glands, secrete sebum, an oily substance that lubricates the skin and hair, preventing them from drying out.
Sebum also forms a protective barrier against harmful microorganisms and helps maintain skin's flexibility. However, overproduction of sebum can lead to skin issues like acne. Together, these glands play crucial roles in skin health and temperature regulation.
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Complete Question:
What are the functions of the sweat and oil glands ?