Description : ______ is the cell organelle, in which the biochemical processes of respiration and energy production occur. (1) Mitochondria (2) Chloroplast (3) Ribosomes (4) Nucleus
Last Answer : (1) Mitochondria Explanation: Mitochondria is an organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur.
Description : DNA is present in (a) Nucleus (b) Mitochondria (c) Chloroplast (d) All of the above
Last Answer : (d) All of the above
Description : Peptide synthesis inside a cell takes place in (a) chloroplast (b) mitochondria (c) chromoplast (d) ribosomes
Last Answer : (d) ribosomes.
Description : Where is ATP produced in prokaryotic cells? a. In The Mitochondria b. In The Chloroplast c. On The Cell Membrane d. On The Ribosomes
Last Answer : b. In The Chloroplast
Description : 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
Last Answer : Gas vacuoles are present
Description : Extranuclear DNA is present in (A) Ribosomes (B) Endoplasmic reticulum (C) Lysosomes (D) Mitochondria
Last Answer : Answer : D
Description : The breakdown of pyruvate to give carbon dioxide, water and energy takes place in (i) cytoplasm (ii) mitochondria (iii) chloroplast (iv) nucleus -Biology
Last Answer : The break down of pyruvate to give carbon dioxide, energy and water takes place in the presence of oxygen and is termed as aerobic respiration. This process takes place in the mitochondria of a cell.
Description : Which one is common amongst nucleus, chloroplast and mitochondria? (a) Cristae (b) Thylakoids (c) Nucleic acid (d) Carbohydrate metabolism
Last Answer : Ans. ((c))
Description : Organelles involved in photorespiration are (a) Mitochondria, chloroplasts and ribosomes (b) Mitochondria, Peroxisomes and chloroplasts (c) Mitochondria, nucleus and ribosomes (d) Mitochondria, proxisomes and glyoxisomes
Last Answer : Ans. ((b))
Description : Endoplasmic reticulum remain in continuation with: (a) nucleus (b) Ribosomes (c) Mitochondria (d) Golgi bodies
Last Answer : Ans. ((a))
Description : Photosynthesis takes place inside plant cells in ______. (1) Ribosomes (2) Chloroplasts (3) Nucleus (4) Mitochondria
Last Answer : (2) Chloroplasts Explanation: In plants, the process of photosynthesis takes place in the mesophyll of the leaves, inside the chloroplasts.
Description : Mitochondria and chloroplast are (A) semi-autonomous organelles (B) formed by division of pre-existing organelles and they contain DNA but lack protein synthesising machinery. Which one of the following options is correct? (a) ( ... Both (A) and (B) are correct. (d) (B) is true but (A) is false.
Last Answer : (a) (A) is true but (B) is false.
Description : Which of the following pairs of organelles does not contain DNA? (a) Nuclear envelope and Mitochondria (b) Mitochondria and Lysosome (c) Chloroplast and Vacuoles (d) Lysosomes and Vacuoles
Last Answer : (d) Lysosomes and Vacuoles
Description : Magnesium is a constituent metal of – (1) Chlorophyll molecule (2) DNA (3) Mitochondria (4) Ribosomes
Last Answer : (1) Chlorophyll molecule Explanation: The basic structure of chlorophyll consists of a porphyrin ring, coordinated to a central atom. This is very similar in structure to the heme group found in ... was discovered in 1906 and was the first time that magnesium had been detected in living tissue.
Description : 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 ... transport are embedded in outer membrane. (d) Inner membrane is convoluted with infoldings.
Last Answer : (c) Enzymes of electron transport are embedded in outer membrane.
Description : Thermococcus, Methanococcus and Methano- bacterium exemplify (a) bacteria whose DNA is relaxed or positively supercoiled but which have a cytoskeleton as well as mitochondria (b) bacteria that ... that lack any histones resembling those found in eukaryotes but whose DNA is negatively supercoiled
Last Answer : (c) archaebacteria that contain protein homologous to eukaryotic core histones
Description : What is evidence for the endosymbiotic theory? a. Ribosomes are the same size in eukaryotes and prokaryotes b. Organelles like mitochondria and cholorplasts have their own dna and ribosomes c. Flagella are the same in both types of cells d. A-C are correct
Last Answer : b. Organelles like mitochondria and cholorplasts have their own dna and ribosomes
Description : Which one of the following is NOT found in bacterial cells? a. Ribosomes b. DNA c. Mitochondria d. Cytoplasm
Last Answer : c. Mitochondria
Description : Magnesium is a constituent metal of (1) Chlorophyll molecule (2) DNA (3) Mitochondria (4) Ribosomes
Last Answer : Chlorophyll molecule
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 : Oxidase enzymes responsible for producing H2O2 are present in a. Mitochondria b. Ribosomes c. Peroxisomes d. Polysomes
Last Answer : Peroxisomes
Description : A prokaryotic cell does not have which of the followin (1) Ribosomes (2) Cell membrane (3) Nucleus (4) DNA
Last Answer : (3) Nucleus Explanation: Prokaryotic cells do not contain a nucleus or any other membrane-bound organelle. The word "prokaryotic" means "before nucleus." Prokaryotes include two groups: ... another group called archaea. In contrast, eukatyotic cells have etrue" nucleus containing their DNA.
Description : A prokaryotic cell does not have which of the following? (1) Ribosomes (2) Cell membrane (3) Nucleus (4) DNA
Last Answer : Nucleus
Description : Site of Protein synthesis in cell is — a. Mitochonderia b. Ribosomes c. Cell wall d. Chloroplast
Last Answer : b. Ribosomes
Description : Mammalian DNA polymerase γ is located in (A) Nucleus (B) Nucleolus (C) Mitochondria (D) Cytosol
Last Answer : Answer : C
Description : Outside the nucleus DNA is found in - (1) Golgi bodies (2) Mitochondria (3) Ribosome (4) Endoplasmic reticulum
Last Answer : (2) Mitochondria Explanation: In eukaiyotic (with nucleus) cells, the vast majority of DNA is found in the nucleus as discrete bodies called chromosomes. The exception to this being the small amount ... cells, more than 99% of the total DNA is nuclear genomic DNA and the remainder mitochondrial.
Description : Outside the nucleus DNA is found in (1) Golgi bodies (2) Mitochondria (3) Ribosome (4) Endoplasmic reticulum
Last Answer : Mitochondria
Description : What kind of DNA is present in chloroplast? -Biology
Last Answer : answer:
Description : Name of the place where acculmulation of protons occur during chemiosmosis in chloroplast and mitochondria respectively.
Last Answer : Name of the place where acculmulation of protons occur during chemiosmosis in chloroplast and mitochondria respectively.
Description : Assertion:- Mitochondria, chloroplast and peroxisome are not involved in endomembrane system. Reason:- Their functions are not coordinated with consti
Last Answer : Assertion:- Mitochondria, chloroplast and peroxisome are not involved in endomembrane system. Reason:- ... If both Assertion & Reason are false.
Description : How are mitochondria and chloroplast different?
Last Answer : Chloroplasts have chlorophyll, mitochondria don't.Chloroplast carry out photosynthesis and produce glucose.Mitochondria carry out respiration and break down glucose
Description : Photorespiration is related to: (a) Chloroplast (b) Mitochondria (c) Peroxisome (d) Glyoxysomes
Description : The organelles involved in photorespiration are (a) Glyoxysomes, chloroplast and mithondria (b) Chloroplast, peroxisome and glythisome (c) Mitochondria, peroxisome and glyoxysomes (d) Chloroplast, mitochondria and peroxisome
Last Answer : Ans. ((d))
Description : The correct sequence of cell organelles during photorespiration is (a) chloroplast, Golgi-bodies, mitochondria (b) chloroplast, rough endoplasmic reticulum, dictyosomes (c) chloroplast, mitochondria, peroxisome (d) chloroplast, vacuole, peroxisome.
Last Answer : (c) chloroplast, mitochondria, peroxisome
Description : The mechanism of ATP formation both in chloroplast and mitochondria is explained by (a) chemiosmotic theory (b) Munch’s hypothesis (mass flow model) (c) relay pump theory of Godlewski (d) Cholodny-Wont’s model.
Last Answer : (a) chemiosmotic theory
Description : The main organelle involved in modification and outing of newly synthesized proteins to their destinations is (a) chloroplast (b) mitochondria (c) lysosome (d) endoplasmic reticulum.
Last Answer : (d) endoplasmic reticulum.
Description : The correct sequence of cell organelles during photorespiration is (1) Chloroplast, -vacuole, -peroxisome (2) Chloroplast,-Golgibodies,-mitochondria (3) Chloroplast,-Rough Endoplasmic reticulum,-Dictyosomes (4) Chloroplast,-mitochondria,-peroxisome
Last Answer : (4) Chloroplast,-mitochondria,-peroxisome
Description : Plant cells contain the following 3 things not found in animal cells _________, _____________ and ______________. (A) Plastids / Chlorophyll / Membrane (B) Chloroplast / Cell wall / Golgi body (C) Plastids / Cell wall / Chlorophyll (D) Mitochondria / Cell wall /
Last Answer : (C) Plastids / Cell wall / Chlorophyll
Description : The enzyme pyruvate carboxylase is present in (A) Cytosol (B) Mitochondria (C) Nucleus (D) Golgi bodies
Last Answer : Answer : B
Description : In the bacteria: (1) Mesosome is present (2) Nucleoid represents the genome (3) Ribosomes are found in cytoplasm (4) Histone proteins complexed with DNA
Description : De novo synthesis of pyrimidine nucleotides occurs in (A) Mitochondria (B) Cytosol (C) Microsomes (D) Ribosomes
Description : De novo synthesis of purine nucleotide occurs in (A) Mitochondria (B) Cytosol (C) Microsmes (D) Ribosomes
Description : During synthesis of porphyrins, synthesis of δ-amino levulinic acid occurs in (A) Mitochondria (B) Cytosol (C) Both in mitochondria and cytosol (D) Ribosomes
Last Answer : Answer : A
Description : Which of the following cell organelles are not found in a bacterial cell? 1. Glyoxysomes 2. Lysosomes 3. Mitochondria 4. Ribosomes Select the correct answer using codes given below: (a) 1 and 4 (b) 2 and 4 (c) 1, 2 and 3 (d) 1, 2, 3 and 4
Last Answer : Ans:(a)
Description : The power house of energy in cells is (a) Golgi bodies (b) Mitochondria (c) Ribosomes (d) Endoplasmic reticulum
Last Answer : Ans:(b)
Description : Which of the following is known as ‘suicide bags of the cell’? (1) Mitochondria (2) Golgi Bodies (3) Lysosomes (4) Ribosomes
Last Answer : (3) Lysosomes Explanation: Lysosomes are a kind of waste disposal system of the cell. It contains digestive enzymes for almost all types of organic materials.
Description : Which of the following organelle of the cell contain their own genetic material? (1) Mitochondria (2) Ribosomes (3) Golgi complex (4) None of the above
Last Answer : (1) Mitochondria Explanation: Nucleus is the central organelle of the cell which encloses the DNA. Apart from the nucleus, there are few other organelles which have their own DNA.
Description : Which of the following organelles are called the Protein Factories of the cell? (1) Chloroplasts (2) Lysosomes (3) Mitochondria (4) Ribosomes
Last Answer : (4) Ribosomes Explanation: The ribosome works as the protein factory in every living cell. It gathers amino acids and assembles them into protein chains to make almost anything the cell needs.
Description : ATP is generated in a. ribosomes b. polysomes c. mitochondria d. golgi bodies
Last Answer : mitochondria