Which of the following statements regarding mitochondria is incorrect? (a) Mitochondrial matrix contains single circular DNA molecule and ribosomes. (b) Outer membrane is permeable to monomers of carbohydrates, fats and proteins. (c) Enzymes of electron transport are embedded in outer membrane. (d) Inner membrane is convoluted with infoldings.

Which of the following statements regarding
mitochondria is incorrect?
(a) Mitochondrial matrix contains single circular
DNA molecule and ribosomes.
(b) Outer membrane is permeable to monomers of
carbohydrates, fats and proteins.
(c) Enzymes of electron transport are embedded in
outer membrane.
(d) Inner membrane is convoluted with infoldings.
by

1 Answer

Answer :

(c) Enzymes of electron transport are embedded in
outer membrane.
by

Related questions

Which of the following statements regarding mitochondrial membrane is not correct ? (a) The outer membrane resembles a sieve. (b) The outer membrane is permeable to all kinds of molecules. (c) The enzymes of the electron transfer chain are embedded in the outer membrane. (d) The inner membrane is highly convoluted forming a series of infoldings.

Description : Which of the following statements regarding mitochondrial membrane is not correct ? (a) The outer membrane resembles a sieve. (b) The outer membrane is permeable to all kinds of molecules. (c) ... in the outer membrane. (d) The inner membrane is highly convoluted forming a series of infoldings.

Last Answer : (c) The enzymes of the electron transfer chain are embedded in the outer membrane.

The figure below shows the structure of a mitochondrion with its four parts labelled A, B, C and D. Select the part correctly matched with its function. D B A C (a) D (outer membrane) – gives rise to inner membrane by splitting (b) B (inner membrane) – forms infoldings called cristae (c) C (crista) – possesses single circular DNA molecule and ribosomes (d) A (matrix) – major site for respiratory chain enzyme

Description : The figure below shows the structure of a mitochondrion with its four parts labelled A, B, C and D. Select the part correctly matched with its function. D B A C (a) D (outer ... possesses single circular DNA molecule and ribosomes (d) A (matrix) - major site for respiratory chain enzyme

Last Answer : (b) B (inner membrane) – forms infoldings called cristae

Enzymes catalyzing electron transport are present mainly in the (A) Ribosomes (B) Endoplasmic reticulum (C) Lysosomes (D) Inner mitochondrial membrane

Description : Enzymes catalyzing electron transport are present mainly in the (A) Ribosomes (B) Endoplasmic reticulum (C) Lysosomes (D) Inner mitochondrial membrane

Last Answer : D

Where is respiratory electron transport system (ETS) located in plants ? (a) Mitochondrial matrix (b) Outer mitochondrial membrane (c) Inner mitochondrial membrane (d) Intermembrane space

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Last Answer : (c) Inner mitochondrial membrane

The inner membrane of the mitochondria is, usually, highly convoluted forming a series of infoldings known as (a) thylakoids (b) lamellae (c) cristae (d) grana.

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Last Answer : (c) cristae

Which of these statements is incorrect? (a) Enzymes of TCA cycle are present in mitochondrial matrix. (b) Glycolysis occurs in cytosol. (c) Glycolysis operates as long as it is supplied with NAD that can pick up hydrogen atoms. (d) Oxidative phosphorylation takes place in outer mitochondrial membrane

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Which of these statements is incorrect ? (1) Enzymes of TCA cycle are present in mitochondrial matrix. (2) Glycolysis occurs in cytosol. (3) Glycolysis operates as long as it is supplied with NAD that can pick up hydrogen atoms. (4) Oxidative phosphorylation takes place in outer mitochondrial membrane.

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Oxidation of fatty acids occurs (A) In the cytosol (B) In the matrix of mitochondria (C) On inner mitochondrial membrane (D) On the microsomes

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Last Answer : Answer : B

Identify the components labelled A, B, C and D in the diagram below from the list (i) to (viii) given along withComponents : (i) Cristae of mitochondria (ii) Inner membrane of mitochondria (iii) Cytoplasm (iv) Smooth endoplasmic reticulum (v) Rough endoplasmic reticulum (vi) Mitochondrial matrix (vii) Cell vacuole (viii) Nucleus The correct components are: A B C D (a) (v) (iv) (viii) (iii) (b) (i) (iv) (viii) (vi) (c) (vi) (v) (iv) (vii) (d) (v) (i) (iii) (ii)

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The redox carriers are grouped into respiratory chain complex (A) In the inner mitochondrial membrane (B) In mitochondiral matrix (C) On the outer mitochondrial membrane (D) On the inner surface of outer mitochondrial membrane

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Last Answer : Answer : A

Carnitine acylcarnitine translocase is present (A) In the inner mitochondrial membrane (B) In the mitochondrial matrix (C) On the outer surface of inner mitochondrial membrane (D) On the inner surface of inner mitochondrial membrane

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The chemiosmotic coupling hypothesis of oxidative phosphorylation proposes that adenosine triphosphate (ATP) is formed because (a) a proton gradient forms across the inner membrane(b) there is a change in the permeability of the inner mitochondrial membrane toward adenosine diphosphate (ADP) (c) high energy bonds are formed in mitochondrial proteins (d) ADP is pumped out of the matrix into the intermembrane space.

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Infoldings of inner membrane in mitochondria are called (A) Grana (B) Thyallkoids (C) Cristae (D) Frets

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In mitochondria, protons accumulate in the (a) outer membrane (b) inner membrane (c) intermembrane space (d) matrix.

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Electron transport and phosphorylation can be uncoupled by compounds that increase the permeability of the inner mitochondrial membrane to (A) Electrons (B) Protons (C) Uncouplers (D) All of these

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Last Answer : B

The electron transport chain within the inner mitochondrial membrane creates a gradient of ____________ across the inner membrane which is utilized to drive the activity of ATP synthase and the generation of ATP.

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Last Answer : Hydrogen (H+ ions) or protons

All of the following statements about the enzymic complex that carries out the synthesis of ATP during oxidative phosphorylation are correct except (A) It is located on the matrix side of the inner mitochondrial membrane (B) It is inhibited by oligomycin (C) It can exhibit ATPase activity (D) It can bind molecular O2

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Select the wrong statement from the following. (a) Both chloroplasts and mitochondria have an internal compartment, the thylakoid space bounded by the thylakoid membrane. (b) Both chloroplasts and mitochondria contain DNA. (c) The chloroplasts are generally much larger than mitochondria. (d) Both chloroplasts and mitochondria contain an inner and an outer membrane.

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Cytochrome C (small protein) is attached to outer surface of the inner mitochondrial membrane.

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Cytochrome C (small protein) is attached to outer surface of the inner mitochondrial membrane.

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According to widely accepted “fluid mosaic model” cell membranes are semi-fluid, where lipids and integral proteins can diffuse randomly. In recent years, this model has been modified in several respects. In this regard, which of the following statements is incorrect? (a) Proteins in cell membranes can travel within the lipid bilayer. (b) Proteins can also undergo flip-flop movements in the lipid bilayer. (c) Proteins can remain confined within certain domains of the membrane.(d) Many proteins remain completely embedded within the lipid bilayer.

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Select the correct statement from the following regarding cell membrane. (a) Na+ and K+ ions move across cell membrane by passive transport. (b) Proteins make up 60 to 70% of the cell membrane. (c) Lipids are arranged in a bilayer with polar heads towards the inner part. (d) Fluid mosaic model of cell membrane was proposed by Singer and Nicolson

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The emtabolic pathway present in the inner mitochondrial membrane through which the electron passes from one carrier to another is called_____

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The emtabolic pathway present in the inner mitochondrial membrane through which the electron passes from one carrier to another is called_____

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The chemical inhibiting oxidative phosphorylation, Adependent on the transport of adenine nucleotides across the inner mitochondrial membrane is (A) Oligomycin (B) Atractyloside (C) Dinitrophenol (D) Pentachlorophenol

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All enzymes are made of (A) Fats (B) Carbohydrates (C) Proteins (D) Amino acids

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Enzymes belong to the category of (A) Proteins (B) Carbohydrates (C) Vitamins (D) Fats

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Mitochondrial membrane is permeable to (A) Short chain fatty acids (B) Medium chain fatty acids (C) Long chain fatty acids (D) All of these

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Magnesium is a constituent metal of – (1) Chlorophyll molecule (2) DNA (3) Mitochondria (4) Ribosomes

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Which of the following is not true for eukaryotic cells? A- Nucleus is bounded by nuclear membrane B- Chromosomes contain histones C- Chloroplasts and mitochondria contains 70S ribosomes D- Gas vacuoles are present

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Last Answer : At inner membrane of mitochondria, passing on the electron removed as part of the hydrogen atoms ... (2)` with simultaneous synthesis of ATP occurs.

At inner membrane of mitochondria, passing on the electron removed as part of the hydrogen atoms to molecular `O_(2)` with simultaneous synthesis of A

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Which one of the following macromolecules would NOT normally be used for microbial energy metabolism. a. DNA b. Proteins c. Carbohydrates d. Fats

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Which of the following statements regarding mitochondrial membrane is NOT correct ?

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The mitochondrial DNA is (A) Like the nuclear DNA in structure (B) Single stranded, linear (C) Double stranded, circular (D) Single stranded, circular

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The enzymes of the citric acid cycle are located in (A) Mitochondrial matrix (B) Extramitochondrial soluble fraction of the cell (C) Nucleus (D) Endoplasmic reticulum

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Which enzyme is located on the inner mitochondrial membrane

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Match the following and select the correct answer `{:("Centriole",(i)"Infoldings in mitochondria"),("Chlorophyll",(ii)"Thylakoids"),("Cristae",(iii)"N

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