Practice free Zoology NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
The substrate has to go through a much higher energy state or transition state in case of:
Answer 3. Read page 156, XI NCERT
Name the enzymes that catalyze removal of groups from substrates by mechanism other than hydrolysis leaving double bonds:
Answer 2. Read page 158, XI NCERT
When the co-factor is removed from the enzyme, the catalytic activity:
Answer 1. Read page 159, XI NCERT
What is the term used for a protein molecule that assists in the proper folding of other proteins?
Answer 2. Factual question
Locomotion is a very important feature in animals. Considering the frequent need for locomotion in animals, an animal would obtain the greatest benefit from storing its energy as:
Answer 4. Fats have a higher calorific value but most importantly are lighter than corresponding sized proteins and carbohydrates.
In the average composition of a cell, the maximum % of total cellular mass [after water and protein] is constituted by:
Answer 3. Read page 147, Table 9.4, XI NCERT
Where would you expect to find serine and alanine amino acids in a globular protein in aqueous solution?
(b) Serine has hydroxymethyl R group that can form hydrogen bonds with water while alanine has methyl R group.
The vitamin Niacin functions as a coenzyme in:
(b) Niacin works in two enzyme systems (NAD and NADP). They affect all the tissues of the body. These enzyme systems help transport hydrogen within the cell. They also make it available for biosynthesis. These two enzymes also work closely with the energy molecule adenosine trisphosphate (ATP).
The six most common atoms in organic molecules are:
Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorous and Sulphur
The unique properties of each amino acid are determined by its particular:
The unique properties of each amino acid are determined by its particular R (side chain) group. The R groups vary in structure, size, charge, and chemical properties, which gives each amino acid its distinct characteristics and influences its behavior in proteins.
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