As a result of its involvement in a reaction, an enzyme is unchanged.
Enzymes are catalysts that speed up chemical reactions that occur within the biological systems (they increase the reaction rate by lowering its activation energy). Enzymes react with substrate that binds to them (key-lock mechanism) and convert the substrate into the product. Most of enzymes are proteins by their structure but a few are catalytic RNA molecules-ribosymes.
Enzyme activity can be affected by other molecules (activators and repressors), pH, temperature etc.
Answer:
Blood and Nerves
Explanation:
Blood is a connective tissue that has a fluid matrix, called plasma, and no fibers. Erythrocytes (red blood cells), the predominant cell type, are involved in the transport of oxygen and carbon dioxide. Also present are various leukocytes (white blood cells) involved in immune response.
Nervous tissue is one of four major classes of tissues. It is specialized tissue found in the central nervous system and the peripheral nervous system. It consists of neurons and supporting cells called neuroglia. The nervous system is responsible for the control of the body and the communication among its parts.
Answer:
D. Sensory Neurons
Explanation:
Peripheral nervous systemconsists of all the neurons and ganglia within the body, outside the central nervous system. It is divided into:
- Somatic nervous system- it controls the movements of skeletal muscles which means that this nervous system is under the voluntary control
- Autonomic nervous system- its role is to control involuntary movements of smooth muscles and glands
Somatic system consists of two types of nerves:
- sensory or afferent nerves-carry the information from the stimulus detector (receptor) to the central nervous system (CNS)
- motor nerves (efferent nerves)-carry the information from CNS to the effectors (skeletal muscles).
Autonomic nervous system consists of:
- sympathetic nervous system
- parasympathetic nervous system
- enteric nervous system
Answer:
Parsec equal to about 3.26 light years.
Explanation:
Hope you have a great day.
That would be D.
The highest temperatures are near the equator and the lowest ones at the poles. So the lower the degree of latitude the higher the temperature.