| List - I | List - II | ||
| (a) | Manganese | (i) | Activates the enzyme catalase |
| (b) | Magnesium | (ii) | Required for pollen germination |
| (c) | Boron | (iii) | Activates enzymes of respiration |
| (d) | Iron | (iv) | Functions in splitting of water during photosynthesis |
Given below are two statements:
Statement I: Low temperature preserves the enzyme in a temporarily inactive state whereas high temperature destroys enzymatic activity because proteins are denatured by heat.
Statement II: When the inhibitor closely resembles the substrate in its molecular structure and inhibits the activity of the enzyme, it is known as competitive inhibitor.
In the light of the above statements, choose the correct answer from the options given below:
Given below are two statements:
Statement I: In prokaryotes, the positively charged DNA is held with some negatively charged proteins in a region called nucleoid.
Statement II: In eukaryotes, the negatively charged DNA is wrapped around the positively charged histone octamer to form nucleosome.
In the light of the above statements, choose the correct answer from the options given below :
Cellulose does not form blue colour with iodine because
Melonate inhibits the growth of pathogenic bacteria by inhibiting the activity of
Read the following statements on lipids and find out correct set of statements:
Choose the correct answer from the options given below
Hormones are defined as important chemicals that act as messengers of the body. These are the chemicals that are secreted by special glands, known as endocrine glands and these distributed throughout the body. It helps in controlling of physiological functions. Moreover, they are important while maintaining homeostasis in the body. The entire endocrine system is a network of glands. Hormones are almost same as the nervous system. Functioning of various body functions it plays an important role. The only difference between the nervous system and hormones that nervous system uses nerve impulses and neurotransmitters for communication, while the endocrine system uses chemical messengers named hormones.