NEET-PYQS- CLASS XI- CELL THE UNIT OF LIFE - PRACTICE ONLINE

PYQS- NEET- CLASS XI- CELL THE UNIT OF LIFE

Quiz

 

1. THE PLASMA MEMBRANE CONSISTS MAINLY OF
   1.   PHOSPHOLPIDS EMBEDDED IN PROTEIN BILAYER
   2.   PROTEINS EMBEDDED IN PHOSPHOLIPID BILAYER
   3.   PROTEINS EMBEDDED IN POLYMER OF GLUCOSE MOLECULES
   4.   PROTEINS EMBEDDED IN CARBOHYDRATE BILAYER
2. THE MAIN ARENA FOR VARIOUS TYPES OF ACTIVITIES OF A CELL IS
   1.   PLASMA MEMBRANE
   2.   MITOCHONDRION
   3.   CYTOPLASM
   4.   NUCLEUS
3. WHICH ONE OF THE FOLLOWING HAS ITS OWN DNA?
   1.   MITOCHONDRIA
   2.   DICTYOSOSME
   3.   LYSOSOME
   4.   PEROXISOME
4. MEMBRANE BOUND ORGANELLES ARE ABSENT IN ....
   1.   SACCHAROMYCES
   2.   STREPTOCOCCUS
   3.   CHLAMYDOMONAS
   4.   PLASMODIUM
5. NETWORK OF FILAMENTOUS PROTEINACEOUS STRUCTURES PRESENT IN CYTOPLASM, WHICH HELP IN MAINTENANACE OF CELL SHAPE IS ....
   1.   THYLAKOID
   2.   PLASMALEMMA
   3.   ENDOPLASMIC RETICULUM
   4.   CYTOSKELETON
6. PEPTIDE SYNTHESIS IN CELL OCCURS IN
   1.   MITOCHONDRIA
   2.   CHROMOPLAST
   3.   CHLOROPLAST
   4.   RIBOSOMES
7. IN EUBACTERIA CELLULAR COMPONENT THAT RESEMBLES EUKARYOTIC CELL IS
   1.   NUCLEUS
   2.   RIBOSOMES
   3.   CELL WALL
   4.   PLASMA MEMBRANE
8. IMPORTANT SITE FOR FORMATION OF GLYCOLIPID AND GLYCOPROTEIN IS
   1.   GOLGI APPARATUS
   2.   PLASTIDS
   3.   LYSOSOME
   4.   VACUOLE
9. WHICH ONE OF THE FOLLOWING IS NOT CONSIDERED AS PART OF ENDOMEMBRANE SYSTEM?
   1.   GOLGI COMPLEX
   2.   PEROXISOME
   3.   VACUOLE
   4.   LYSOSOME
10. IN MITOCHONDRIA PROTONS ACCUMULATES IN THE ...
    1.   OUTER MEMBRANE
    2.   INNER MEBRANE
    3.   INTERMEMBRANE SPACE
    4.   MATRIX
11. SELECT THE CORRECT STATEMENT ...
    1.   Na+ AND K+ IONS MOVE ACROSS CELL MEBRANE BY PASSIVE TRANSPORT
    2.   PROTEINS MAKE UP 60 TO 70% OF THE CELL MEMBRANE
    3.   LIPIDS ARE ARRANGED IN A BILAYER WITH POLAR HEADS TOWARDS THE INNER PART
    4.   FLUID MOSAIC MODEL OF CELL MEMBRANES WAS PROPOSED BY SINGER AND NICOLSON
12. NUCLEAR MEMBRANE IS ABSENT IN
    1.   PENICILLIUM
    2.   AGARICUS
    3.   VOLVOX
    4.   NOSTOC
13. RIBOSOMAL RNA IS ACTIVELY SYNTHESIZED IN .....
    1.   LYSOSOMES
    2.   NUCLEOLUS
    3.   NUCLEOPLASM
    4.   RIBOSOMES
14. WHAT IS TRUE ABOUT RIBOSOMES?
    1.   PROKARYOTIC RIBOSOSME IS 80 S.
    2.   RIBOSOMES COMPOSED OF RNA AND PROTEINS
    3.   THESE ARE FOUND ONLY IN EUKARYOTES
    4.   THESE ARE SELF SPLICING INTRONS OF SOME RNAS
15. WHICH OF THE FOLLOWING IS ORGANELLE WITHIN ORGANELLE?
    1.   PEROXISOME
    2.   ER
    3.   MESOSOME
    4.   RIBOSOME
16. PIGMENTS CONTAINING MEMBRANOUS EXTENSIONS IN CYANOBACTERIA ARE ...
    1.   HETEROCYSTS
    2.   BASAL BODIES
    3.   PNEUMATOPHORES
    4.   CHROMATOPHORES
17. THE SOLID LINEAR CYTOSKELETAL ELEMENTS HAVING A DIAMETER OF 6 NM AND MADE UP OF SINGLE TYPE OF MONOMER ARE KNOWN AS
    1.   MICROTUBULES
    2.   MICROFILAMENTS
    3.   INTERMEDIATE FILAMENTS
    4.   LAMINS
18. WHICH STRUCTURES PERFORM FUNCTIONS OF MITOCONDRIA IN BACTERIA?
    1.   NUCLEOID
    2.   RIBOSOMES
    3.   CELL WALL
    4.   MESOSOMES
19. WHICH OF THE FOLLOWING COMPONENT PROVIDES STICKY CHARACTER TO BACTERIAL CELL?
    1.   NUCLEAR MEMBRANE
    2.   PLASMA MEBRANE
    3.   GLYCOCALYX
    4.   CELL WALL
20. WHICH OF THE FOLLOWING EVENTS DOES NOT OCCUR IN R.E.R.?
    1.   PROTEIN FOLDING
    2.   CLEAVAGE OF SIGNAL PEPTIDE
    3.   PROTEIN GLYCOSYLATION
    4.   PHOSPHOLIPID SYNTHESIS