BIO303 Midterm Current Solved MCQs and Questions by Muhammad Zaman

(There is Little Possibility of Any Mistake, if · you find Let us to Know) · (All Ans Are Taken From PPTs) · MCQS:

•  ........are single strands globular molecules.___ tRNA
•  Animals convert the chemical energy of fuels into motion

and heat and In a few organisms such as fireflies chemical energy is converted into light

•  A ligand bind at a site on the protein called the___binding

site.

•  Gluconeogenesis is a process_____Synthesis glucose
•  Cori cycle take place___liver
•  Conversion of glucose 6_phosphate of fructose 6_

phosphate requires enzymes______phosphohexose

isomerase

•  Standard reduction is denoted by____E°

Pyruvate is oxidized, with loss of its carboxyl group as CO2 , to yield the acetyl group of acetyl-coenzyme A;

•  Chemicals reaction in which the reactions and products

same phase____homologous chemical reactions

•  Covalent bond are also called____molecular bond

It is in the form of a loop and carries specific sequences of three bases which constitute the anticodon.

Secondary structure involves coil formation of the polyribonucleotide chain.

It is defined as the number and sequence of ribonucleotides in the RNA chain._____ Primary Structure of RNA

Separation of the two strands of the double helix when hydrogen bonds between the paired bases are disrupted_____________ DNA Denaturation

In non-oxidative phase, ribulose 5-phosphate is first epimerized to xylulose 5phosphate

In the cytosol, oxaloacetate is converted to phosphoenolpyruvate by PEP carboxykinase.

The important precursors of glucose in animals are threecarbon compounds such as lactate, pyruvate, and glycerol, as well as certain amino acids We take the example of Aspergillus niger and Lactobacillus are the microbes used to commercially produce citric acid and lactic acid, respectively. (Both Fermentation)

Lactic acid fermentation is done by some fungi, some bacteria like in yogurt, and sometimes by our muscles.

Compounds with two phosphates linked together as a pyrophosphoryl group are named diphosphates;

Compounds that contain two phosphate or phosphoryl groups attached at different positions in the molecule are named

bisphosphates (or bisphospho compounds);

The energy gain comes in the payoff phase of glycolysis

Note that during preparatory phase, 2 molecules of ATP are invested before the cleavage of glucose into two three-carbon pieces.

NAD and NADP are soluble electron carriers that act with dehydrogenase enzymes

Waste products from other industrial processes, such as molasses, cheese whey and corn steep liquor, after modifying with the incorporation of additional nutrients, are used as the substrate for many industrial fermentation