Description : De novo synthesis of pyrimidine nucleotides occurs in (A) Mitochondria (B) Cytosol (C) Microsomes (D) Ribosomes
Last Answer : Answer : B
Description : De novo synthesis of purine nucleotide occurs in (A) Mitochondria (B) Cytosol (C) Microsmes (D) Ribosomes
Description : Porphyrins are synthesized in (A) Cytosol (B) Mitochondria (C) Cytosol and mitochondria (D) Rough endoplasmic reticulum
Last Answer : Answer : C
Description : Protein synthesis in an animal cell occurs (a) only on the ribosomes present in cytosol (b) only on ribosome attached to the nuclear envelope and endoplasmic reticulum (c) on ribosome present in the ... as well as in cytoplasm (d) on ribosomes present in cytoplasm as well as in mitochondria.
Last Answer : (d) on ribosomes present in cytoplasm as well as in mitochondria.
Description : .Protein synthesis in an animal cell occurs (a) only on the ribosomes present in cytosol (b) only on ribosome attached to the nuclear envelope and endoplasmic reticulum (c) on ribosome present in the ... as well as in cytoplasm (d) on ribosomes present in cytoplasm as well as in mitochondria.
Description : De novo synthesis and oxidation of fatty acids differ in the following respect: (A) Synthesis occurs in cytosol and oxidation in mitochondria (B) Synthesis is decreased and oxidation increased by ... synthesis and FAD in oxidation (D) Malonyl CoA is formed during oxidation but not during synthesis
Last Answer : Answer : A
Description : Which of the following ribosomes are engaged in protein synthesis in animal cell? (a) Ribosomes which occur on nuclear membrane and ER (b) Ribosomes of only cytosol (c) Ribosomes of only nucleolus and cytosol (d) Ribosomes of only mitochondria and cytosol
Last Answer : (a) poleward movement
Description : De hovo synthesis of fatty acids occurs in (A) Cytosol (B) Mitochondria (C) Microsomes (D) All of these
Description : The synthesis of 3-hydroxy-3-methylglutaryl-CoA can occur (A) Only in mitochondria of all mammalian tissues (B) Only in the cytosol of all mammalian tissue (C) In both cytosol and mitochondria (D) In lysosomes
Description : Carbamoyl phosphate required for urea synthesis is formed in (A) Cytosol (B) Mitochondria (C) Both (A) and (B) (D) None of these
Description : The enzymes of urea synthesis are found in (A) Mitochondria only (B) Cytosol only (C) Both mitochondria and cytosol (D) Nucleus
Description : Transfer RNA transfers (A) Information from DNA to ribosomes (B) Information from mRNA to cytosol (C) Amino acids from cytosol to ribosomes (D) Proteins from ribosomes to cytosol
Description : All the enzymes involved in the synthesis of cholesterol are found in (A) Mitochondria (B) Golgi apparatus (C) Nucleus (D) Endoplasmic reticulum and cytosol
Last Answer : Answer : D
Description : The main pathway for denovo synthesis of fatty acids occur in (A) Cytosol (B) Mitochondria (C) Microsomes (D) Nucleus
Description : The amino alcohol sphingosine is synthesized in (A) Mitochondria (B) Cytosol (C) Nucleus (D) Endoplasmic reticulum
Description : The biosynthesis of urea occurs mainly in the liver: (A) Cytosol (B) Mitochondria (C) Microsomes (D) Nuclei
Description : Oxidation of fatty acids occurs (A) In the cytosol (B) In the matrix of mitochondria (C) On inner mitochondrial membrane (D) On the microsomes
Description : The biosynthesis of Urea occurs mainly in the Liver: (A) Cytosol (B) Microsomes (C) Nucleus (D) Mitochondria
Description : The synthesis of glucose from pyruvate by gluconeogenesis (A) Requires the participation of biotin (B) Occurs exclusively in the cytosol (C) Is inhibited by elevated level of insulin (D) Requires oxidation/reduction of FAD
Last Answer : A
Description : Gluconeogenesis occurs in _______ of cells. a. Mitochondria. b. Cytosol. c. Golgi bodies. d. Nucleus.
Last Answer : b. Cytosol.
Description : Long chain fatty acids are first activated to acyl CoA in the (A) Cytosol (B) Mitochodria (C) Ribosomes (D) Microsome
Description : Peptide synthesis inside a cell takes place in (a) chloroplast (b) mitochondria (c) chromoplast (d) ribosomes
Last Answer : (d) ribosomes.
Description : Where does protein synthesis take place in all cells? a. mitochondria b. cell membranes c. ribosomes d. Golgi apparatus
Last Answer : c. ribosomes
Description : In the biosynthesis of the iron protoporphyrin, the product of the condensation between succinyl-CoA and glycine is (A) α-Amino β-ketoadipic acid (B) δ-Aminolevulinate (C) Hydroxymethylbilane (D) Uroporphyrinogen I
Description : Mammalian DNA polymerase γ is located in (A) Nucleus (B) Nucleolus (C) Mitochondria (D) Cytosol
Description : The major site for elongation of medium chain fatty acids is (A) Mitochondria (B) Cytosol (C) Microsomes (D) All of these
Description : Glycolytic pathway is located in (A) Mitochondria (B) Cytosol (C) Microsomes (D) Nucleus
Description : Pyruvate dehydrogenase complex is located in (A) Cytosol (B) Lysosomes (C) Mitochondria (D) Endoplasmic reticulum
Description : Lactate dehydrogenase is located in (A) Lysosomes (B) Mitochondria (C) Cytosol (D) Microsomes
Description : Acetyl-CoA is the principal building block of fatty acids. It is produced within the mitochondria and does not diffuse readily into cytosol. The availability of acetyl CoA involves (A) Carnitine acyl transferase (B) Pyruvate dehydrogenase (C) Citrate lyase (D) Thiolase
Description : The enzyme pyruvate carboxylase is present in (A) Cytosol (B) Mitochondria (C) Nucleus (D) Golgi bodies
Description : The enzymes of the pentose phosphate pathway are found in the (A) Cytosol (B) Mitochondria (C) Nucleus (D) Endoplasmic reticulum
Description : What is the sub cellular site for the βoxidation of fatty acids? (A) Nucleus (B) Mitochondria (C) Lysosome (D) Cytosol
Description : While citrate is converted to isocitrate in the mitochondria, it is converted to _______ in the cytosol. (A) Acetyl CoA + oxaloacetate (B) Acetyl CoA + malonyl CoA (C) Acetyl CoA + Pyruvate (D) Acetyl CoA + acetoacetyl CoA
Description : The enzymes of β-oxidation are found in (A) Mitochondria (B) Cytosol (C) Golgi apparatus (D) Nucleus
Description : Long chain fatty acids are first activated to acetyl-CoA in (A) Cytosol (B) Microsomes (C) Nucleus (D) Mitochondria
Description : In a cell, aerobic respiration occurs mainly in the: a) ribosomes (pron: RIBE-a-somes) b) mitochondria (pron: mite-o-KON-dree-a) c) Golgi apparatus (pron: GALL-jee) d) chloroplasts (pron: KLOR-o-plasts)
Last Answer : ANSWER: B -- MITOCHONDRIA
Description : The conversion of pyruvate to acetyl CoA and CO2 (A) Is reversible (B) Involves the participation of lipoic acid (C) Depends on the coenzyme biotin (D) Occurs in the cytosol
Last Answer : B
Description : Synthesis of RNA molecule is terminated by a signal which is recognised by (A) α-factor (B) β-factor (C) δ-factor (D) ρ
Description : After termination of the synthesis of RNA molecule, the core enzymes separate from the DNA template. The core enzymes then recognize a promoter at which the synthesis of a new RNA molecule commences, with the assistance of (A) Rho (ρ) factor (B) δ factor (C) β factor (D) σ factor
Description : Termination of the synthesis of the RNA molecule is signaled by a sequence in the template strand of the DNA molecule, a signal that is recognized by a termination protein, the (A) Rho (ρ) factor (B) σ factor (C) δ factor (D) ε factor
Description : Unattached ribosomes in the cytosol? -Biology
Last Answer : answer:
Description : Being compartmentalized, bacterial RNA polymerases are localized in the and ribosomes are found a. Nucleoid; At The Nucleoid Periphery b. Cytosol; In The Cytosol c. Cytosol; At The Cell Poles d. Nucleoid; In The Nucleoid
Last Answer : a. Nucleoid; At The Nucleoid Periphery
Description : A growing peptide in a ribosome can not be shifted to the adjacent ribosome because (A) It is firmly attached (B) It will get the amino acid cleaved (C) The gap between the ribosomes is too big for a shift (D) The adjacent ribosomes have different composition
Description : Extranuclear DNA is present in (A) Ribosomes (B) Endoplasmic reticulum (C) Lysosomes (D) Mitochondria
Description : The signal sequence of proteins is cleaved off (A) On the ribosomes immediately after synthesis (B) In the endoplasmic reticulum (C) During processing in Golgi apparatus (D) During passage through the cell membrane
Description : Acyl carrier protein is involved in the synthesis of (A) protein (B) glycogen (C) fatty acid outside the mitochondria (D) fatty acid in the mitochondria
Description : Acetyl CoA from mitochondria is transferred to cytoplasm for the de novo synthesis of fatty acid, by which enzyme?
Last Answer : ATP citrate lyase.
Description : Which of the following statement(s) is/are true concerning translation of the mRNA message to protein synthesis? a. An adaptor molecule, tRNA, recognizes specific nucleic acid bases and unites them ... and the free amino acid occurs in the free cytoplasm d. Complete protein synthesis takes hours
Last Answer : Answer: a, b The synthesis of protein involves conversion from a four-letter nucleotide language to one of 20 chemically distinct amino acids. This process is referred to as ... translation and be moving down the mRNA molecules simultaneously, thus increasing the rate of protein synthesis