60S and 40S subunit combine to form ______ particle
1.100 S
2.90 S
3.80 S
4.70 S
A group of ribosomes attached to mRNA is known as
1.Polymer
2.Polypeptide
3.Polysomes
4.Monomer
Amoeboid movements and movement of cyclosis is due to
1.Microfilaments
2.Microtubules
3.Intermediate filaments
4.Cytoskeleton
Autophagosomes are
1.Those lysosomes which eat parts of their own cells to generate energy.
2.Those lysosomes which eat old and worn out cellular organelles.
3.Lysosomes which help in extracellular digestion
4.Both a and b
Cellular organelles related with H2O2 are
1.Glyoxisomes
2.Lysosomes
3.Peroxisomes
4.Ribosomes
Cellulose is the major component of
1.Primary wall
2.Secondary wall
3.Middle lamella
4.all of the above
Centrioles are composed of ________ triplets of microtubules.
1.3
2.9
3.10
4.15
Chalk is gradually formed of dead
1.Actinopods
2.Foraminiferans
3.Apicomplexans
4.Radiolarians
Chlorophyll is a/an _____ molecule
1.Inorganic
2.Cationic
3.Anionic
4.Organic
Chlorophyll molecule contrains ________ as central metal ion.
1.Fe2+
2.Mg2+
3.Zn2+
4.Cu2+
Complex specialized flagellates living symbiotically in the gut of termites are
1.Trichonymphas
2.Trypanosoma
3.Euglena
4.Radiolarians
During digesting the phagocytosed food particles vesicles formed from fusion of phagocytic vacuole with the enzymes secreted by Golgi apparantus are called
1.Lysosomes
2.Primary lysosomes
3.Secondary lysosomes
4.Food vacuole
Factory of ribosomal systhesis is
1.Cytoplasm
2.Nucleus
3.Nucleolus
4.Endoplasmic reticulum
In golgi apparatus the maturing face is
1.Biconcave
2.Convex
3.Spherical
4.Concave
In which of the following pigments major energy reserves and cell wall are like plants?
1.Rhodophyta
2.Chlorophyta
3.Phaeophyta
4.Chrysophyta
Kingdom protista includes ______ phyla
1.27
2.28
3.26
4.29
Lime stone deposits are formed from
1.Zooflagellates
2.Foraminferans
3.Aetinopods
4.Apicomplexans
Most of the photosynthesis on earth is carried by
1.Kelps
2.Gymnosperms
3.Angiosperms
4.Algae
Number of nuclear pores/nucleus in an RBC are
1.1?3
2.3?4
3.10000
4.30000
Of the following which one has glassy shells?
1.Radiolarians
2.Forams
3.Both of these
4.None of these
Of the following which one is not the characteristic of mitochondria?
1.It contains F1 particles
2.It is involved in the synthesis of protein
3.It is a self replicating organelle
4.Number of mitochondria is constant
On which of the following component of chloroplast chlorophyll is arranged?
1.Cell membrane
2.Matrix
3.Thylakoids
4.Stroma
Pancreas produces secretory granules that help in digestion. These granules after passing through endoplasmic reticulum are pinched off from ______ surface of Golgi apparatus:
1.Forming face
2.Maturating face
3.Any of them
4.None of these
Plasmodium belongs to
1.Ciliates
2.Apicomplexans
3.Actinopods
4.Foraminferans
Proteins and lipids are converted into glycolipids and glycoproteins by adding carbohydrates by
1.Ribosomes
2.Cytoplasm
3.Golgi apparatus
4.Endoplasmic reticulum
Radiolarians belong to which of the following protozoal group?
1.Zooflagellates
2.Actinopods
3.Foraminifera
4.Apicomplexans
Ribonucleo-protein particles are the name of
1.DNA
2.Nucleus
3.Eukaryotic ribosomes
4.RNA
Ribosomes + m-RNA
1.Polysome
2.Phlosome
3.Polosome
4.None of these
Ribosomes are assembled in
1.Nucleolus
2.Nucleus
3.DNA
4.RNA
Spherical or tubular membranes which separate the material present in endoplasmic reticulum from that of cytoplasmic material are called
1.Cytosol
2.Cisternae
3.Polysomes
4.Cristae
Stentor is a/an
1.Ciliate
2.Foraniniferan
3.Actinopods
4.Apicomplexan
Strengthening material of prokaryotic cell wall is
1.Cellulose
2.Chitin
3.Inorganic salts silica waxes and ligin
4.Peptidoglycan or Murein.
The drfinite shape to ciliates is given by
1.Pellicle
2.Penicle
3.Calcium
4.Cell wall
The human naked eye can differentiate between two points which are _______ apart.
1.1.0 mm
2.0.1 mm
3.1.0 cm
4.1.0 dm
The only group of algae having no flagellated motile cells at any stage is :
1.Chrysophyta
2.Phaeophyta
3.Pyrrophyta
4.Rhodophyta
The part of chloroplast where CO2 is fixed to manufacture sugar is
1.Stroma
2.Grana
3.Thylakoid
4.Outer membrane
The place of centromere where spindle fibres get attached is
1.Kinetochore
2.Kinochore
3.Centromere region
4.all of these
The stent energy in the form of ADP is regenerated by mitochondria into:
1.AMP
2.ADP
3.ATP
4.All of these
The type of plastids which help in pollination is
1.Chromoplasts
2.Leucoplasts
3.Chloroplasts
4.All of these
Which of the following combination is an example of self replicating organelles?
1.Mitochondria Ribosomes
2.Mitochondria Nucleus
3.Mitochondria Chloroplast
4.Mitochondria Vacuole
Which of the following cytoskeletal fiber contain tubulin protein?
1.One which help in assembly of spindles during mitosis.
2.One involved in internal cell motion.
3.One involved in maintenance of cell shape.
4.Both b and c
Which of the following impart a red colour to Rose petals?
1.Chloroplast
2.Chlorophyll
3.Chromoplast
4.Leucoplast
Which of the following is not present in mitochondria?
1.Enzymes
2.Co-enzymes
3.Ribosomes
4.Thylakoids
Which of the following statement about eiliates in incorrect?
1.Contain mainly unicellular organisms.
2.Their contractile vacoule is respobsible for water regulation.
3.They are even capable of sexual reproduction.
4.Diploid nucleus being smaller is responsible for cells metabolism and growth while polyploidy nucleus functions in sexual process.
Which of the following statement about Kingdom Protista is incorrect?
1.Their members have characteristics which separate them from other kingdoms
2.They only include unicellular aquatic eukaryotic organisms.
3.They do not develop from Blastula or embryo.
4.They contain ancestors for fungi plants & animals
Which of the following statement is incorrect about algae?
1.Their zygote unlike plants is protected by parental tissue.
2.Their classification is based on pigment composition.
3.Most of them have different morphological forms in-different stages of their life cycle.
4.Almost all of them are aquatic.
Which of the following statement is incorrect about Glyoxisomes?
1.They contain enzymes which help in conversion of fatty acids into carbohydrate
2.They are abundant in soyabeans but absent in pea.
3.They are present through out life of a plant and provide them whth energy through Glyoxylate cycle.
4.They are signle membranous organelles
Which of the protozoa has a striking resemblance to collar cells in sponges?
1.Zooflagellates
2.Choanflagellates
3.Trypanosomoa
4.Trichonymphas
Who first separated bacteria from other protists as a group?
1.John Hogg
2.Ernst Haeckel
3.Margulis and Schwartz
4.Herbert Copeland
Whone is not the function of endoplasmic reticulum?
1.Nerve impulse conduction
2.Transport of material
3.Mechanical support
4.Synthesis of conjugated molecules