Cell The Unit of Life Mock Test | NEET Botany Test Series Leave a Comment / Blog / By admin 30 Sorry! Time up Cell The Unit of Life - NEET (Botany) Learn more! Practice more! Score more!Best of Luck! 1 / 50 In eukaryotes, the 60S subunit of the 80S ribosome contains 5S rRNA only 5S rRNA and 5.8 rRNA only 5S rRNA, 5.8S rRNA and 28S rRNA 5S rRNA, 5.8S rRNA and 18S rRNA 2 / 50 Which of the following characteristics are correct with respect to chlorophyll containing semi- autonomous organelle? Presence of cristae Self duplication ability Presence of ribosomes (80S type) Presence of oxysomes 3 / 50 Select the correct functions of golgi complex Glycosylation of proteins Glycosidation of lipids Acrosome formation in sperms All of the above 4 / 50 Select the odd one w.r.t endomembrane system Golgi bodies Vacuole ER Ribosome 5 / 50 Select the incorrect statement with respect to nucleus Nucleolus of nucleus is single membranous Interphase nucleus has high extended and diffused chromatin Double membranous Nuclear pore complex allows the movement of RNA and protein in both directions of nucleus 6 / 50 Which of the following is true for sap vacuoles in plants Surrounded by a double unit membrane bound structure Provides buoaney mainly May contain pigments lons are transported into the vacuole passively 7 / 50 In plant cells, the vacuoles occupy upto % of the plant cell 30% 20% 10% 90% 8 / 50 The 40S smaller subunits of the 80S ribosome has 16S rRNA 18S rRNA 23S rRNA 28S rRNA 9 / 50 Which of the following is/are associated with cell envelop in a bacterial cell? Glycocalyx Cell Wall Cell membrane All of these 10 / 50 Basal body of the flagellum in Gram negative bacteria has 1-ring 2-rings 3-rings 4-rings 11 / 50 Which among the following cell organelles is/are without any membrane boundary? Golgi complex Centrioles and centrosome Ribosome Both (2) & (3) 12 / 50 Euchromation differs from heterochromatin in (1) Darkly stained structure Darkly stained structure More condensed Transcriptionally inactive Forms major portion of chromatin 13 / 50 Which part of the cell wall is chiefly made up of calcium pectate? Primary cell wall Secondary cell wall Tertiary cell wall Middle lamella 14 / 50 9 peripheral triplet of micro tubules without any central tubule in T.S. is found in Centriole Cilia Flagella Both (2) & (3) 15 / 50 Common rRNA found in 70s and 80s types ribosome is 5S rRNA 16S rRNA 18S rRNA 23S rRNA 16 / 50 Which of the following not true for plasmid? They are larger in size than nucleiod Covalently linked Circular Confers unique phenotypic characters 17 / 50 Prokaryotic flagella differs from eukaryotic flagella in having Tubulin protein Flagellin protein 9+2 organization Covered by cell membrane 18 / 50 Select the incorrect option with respect to nucleolus. Non-membranous Site for active rRNA synthesis Larger and more numerous in protein synthesizing cells Content of nucleolus is not continuous with nucleoplasm 19 / 50 Disc-shaped structures present on sides of primary constriction is called Chromatin Kinetochore Nucleoli Satellite 20 / 50 Which structure of cell helps in anchorage of chromatin to nuclear wall? Actin Myosin Intermediate filament Microtubule 21 / 50 Which structure is more active in acidic pH? SER RER Lysosome Ribosome 22 / 50 The quasifluid nature of___helps the____movement of proteins within the plasmamembrane bilayer Lipid; lateral Protein, flipflop Lipid: flipflop Protein; flipflop 23 / 50 Mesosome in bacterial cell is responsible for DNA replication RNA synthesis Protein synthesis Photosynthesis 24 / 50 The shape of a bacterial cell is determined by Capsule Slime layer Cell wall Glycocalyx 25 / 50 All organelles of eukaryotic cell are absent in prokaryotes, except Chloroplast Ribosome Mesosome Centrosome 26 / 50 The organelle which is found in abundance in germinating fatty seeds is Peroxisome Glyoxysomes Golgi complex Microsomes 27 / 50 B-oxidation of fat takes place in Glyoxysomes Both (1) and (3) Sphaerosomes Mitochondrial matrix 28 / 50 Ribophorins I and II are absent from Cisternae Tubules Vesicles More than one option is correct 29 / 50 Which of the following statement is correct? Aquaporins are special transmembrane protein for movement of water molecules The plasma membrane is highly impermeable to all charged molecules lon channels can transport any ion and thus not specifi Na'/K' pumps can operate passively also 30 / 50 Find the incorrect statement with respect to cell wall of plant cell Primary cell wall is thin and elastic Cell wall is absent in Mycoplasma Meristematic cells sometime possess secondary wall as well Pits are present in tracheids 31 / 50 Which statement is applicable to both prokaryotic and eukaryotic cells? Both have same composition of cell wall Both have DNA as genetic material and ribosome to provide bench for protein synthesis Both have same type of flagellar orientation Both possess mesosome 32 / 50 Which of the following set of organisms, cells and entity are exceptions to cell theory? Viruses, RBC Viruses, Porphyra, RBC Viruses, Chlamydomonas, Sieve tube Viruses, Bacteria and WBC 33 / 50 Which of the following statements are correct with respect to mesosome ? Only A and B A, B and D A, B and C All the above 34 / 50 The longest portion of a bacterial flagellum is Hook Basal body Filament Pili 35 / 50 Gluconeogenesis occurs in plants by Peroxisome Glyoxysome Lomasome Sphaerosome 36 / 50 How many chromosomes in human beings have NOR? 20 pairs 15 pairs 5 pairs 1 pairs 37 / 50 Read the statements carefully and choose the correct option(A) Pit cavity is flask shaped(B) These cavities are found in tracheids Both are correct and B is correct explanation of A Both are correct Only A is correct Both are incorrect 38 / 50 Find how many organelles function in a coordinated manner from the bracket given below(Vacuole, Ribosome, Golgi bodies, Centrosome, ER, Sphaerosome, Lysosome, Mitochondria, Plastids) 4 3 2 1 39 / 50 Which is an exception to cell theory? Virus Algae Penicillium Fungi 40 / 50 Informosomes are rRNA Proteins tRNA+Proteins mRNA+Proteins DNA+Proteins 41 / 50 Find the incorrect statement with respect to mitochondria Inner membrane contains electron carriers and enzymes for the formation of ATP The circular ds DNA is GC rich The matrix contains enzymes for TCA cycle For protein formation it never depends on nuclear genome 42 / 50 Which one is not a function of nucleolus? Synthesis of 28S-rRNA Synthesis of 23S-rRNA Synthesis of 5.8S-rRNA Synthesis of 18S-rRNA 43 / 50 The nucleolus is the principal site for the synthesis of tRNA mRNA eRNA hnRNA 44 / 50 The different types of plastids i.e., leucoplast, chromoplast and chloroplast are quite related as These are interconvertible depending upon the requirement of an organ/plant part These all perform same function (3) These all store photosynthetic pigments These all store photosynthetic pigments These all are green coloured 45 / 50 Find the incorrect one with respect to the function of smooth ER Actively engaged in lipid and steroids synthesis Involved in the synthesis of secretory proteins Involved in detoxification of drugs Involved in muscle contraction by release and uptake of Ca++ ion 46 / 50 The connecting layer of the cell wall of adjacent cells in a plant is Primary wall Secondary wall Middle lamella Tertiary wall 47 / 50 find the incorrect statement with respect to prokaryotic cell Nucleoid is also called Prochromosom Protein synthesis occurs in the cytoplasm Cells have single Envelope system Ribosomes are of both 70S and 80S 48 / 50 The algal cell wall is made up of(a) Cellulose(b) Mannans and galactans(c) CaCO3 Only a Only a and b All a, b, and c Only b and c 49 / 50 Reserve material in prokaryotic cells is stored in the cytoplasm in the form of non-membranous, and these are. Reserve vacuoles: phosphate granules, cyanophycean granules and glycogen granules Inclusion bodies: phosphate granules, protein and glucose Gas vacuoles; sulphur granules, gylcogen and protein Inclusion bodies; phosphate granules, cyanophycean granules and glycogen granules 50 / 50 Which of the following rRNA is common to both prokaryotic as well as eukaryotic ribosome? 28S rRNA 5S rRNA 18S rRNA 165 IRNA Your score isThe average score is 27% 0% Restart quiz