60S and 40S subunit combine to form ______ particle
1.100 S
2.90 S
3.80 S
4.70 S
Posted Date:-2021-09-01 20:42:20
A group of ribosomes attached to mRNA is known as
1.Polymer
2.Polypeptide
3.Polysomes
4.Monomer
Posted Date:-2021-09-01 20:42:20
Amoeboid movements and movement of cyclosis is due to
1.Microfilaments
2.Microtubules
3.Intermediate filaments
4.Cytoskeleton
Posted Date:-2021-09-01 20:42:20
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
Posted Date:-2021-09-01 20:42:20
Cellular organelles related with H2O2 are
1.Glyoxisomes
2.Lysosomes
3.Peroxisomes
4.Ribosomes
Posted Date:-2021-09-01 20:42:20
Cellulose is the major component of
1.Primary wall
2.Secondary wall
3.Middle lamella
4.all of the above
Posted Date:-2021-09-01 20:42:20
Centrioles are composed of ________ triplets of microtubules.
1.3
2.9
3.10
4.15
Posted Date:-2021-09-01 20:42:20
Chalk is gradually formed of dead
1.Actinopods
2.Foraminiferans
3.Apicomplexans
4.Radiolarians
Posted Date:-2021-09-01 20:42:20
Chlorophyll is a/an _____ molecule
1.Inorganic
2.Cationic
3.Anionic
4.Organic
Posted Date:-2021-09-01 20:42:20
Chlorophyll molecule contrains ________ as central metal ion.
1.Fe2+
2.Mg2+
3.Zn2+
4.Cu2+
Posted Date:-2021-09-01 20:42:20
Complex specialized flagellates living symbiotically in the gut of termites are
1.Trichonymphas
2.Trypanosoma
3.Euglena
4.Radiolarians
Posted Date:-2021-09-01 20:42:20
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
Posted Date:-2021-09-01 20:42:20
Factory of ribosomal systhesis is
1.Cytoplasm
2.Nucleus
3.Nucleolus
4.Endoplasmic reticulum
Posted Date:-2021-09-01 20:42:20
In golgi apparatus the maturing face is
1.Biconcave
2.Convex
3.Spherical
4.Concave
Posted Date:-2021-09-01 20:42:20
In which of the following pigments major energy reserves and cell wall are like plants?
1.Rhodophyta
2.Chlorophyta
3.Phaeophyta
4.Chrysophyta
Posted Date:-2021-09-01 20:42:20
Kingdom protista includes ______ phyla
1.27
2.28
3.26
4.29
Posted Date:-2021-09-01 20:42:20
Lime stone deposits are formed from
1.Zooflagellates
2.Foraminferans
3.Aetinopods
4.Apicomplexans
Posted Date:-2021-09-01 20:42:20
Most of the photosynthesis on earth is carried by
1.Kelps
2.Gymnosperms
3.Angiosperms
4.Algae
Posted Date:-2021-09-01 20:42:20
Number of nuclear pores/nucleus in an RBC are
1.1?3
2.3?4
3.10000
4.30000
Posted Date:-2021-09-01 20:42:20
Of the following which one has glassy shells?
1.Radiolarians
2.Forams
3.Both of these
4.None of these
Posted Date:-2021-09-01 20:42:20
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
Posted Date:-2021-09-01 20:42:20
On which of the following component of chloroplast chlorophyll is arranged?
1.Cell membrane
2.Matrix
3.Thylakoids
4.Stroma
Posted Date:-2021-09-01 20:42:20
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
Posted Date:-2021-09-01 20:42:20
Plasmodium belongs to
1.Ciliates
2.Apicomplexans
3.Actinopods
4.Foraminferans
Posted Date:-2021-09-01 20:42:20
Proteins and lipids are converted into glycolipids and glycoproteins by adding carbohydrates by
1.Ribosomes
2.Cytoplasm
3.Golgi apparatus
4.Endoplasmic reticulum
Posted Date:-2021-09-01 20:42:20
Radiolarians belong to which of the following protozoal group?
1.Zooflagellates
2.Actinopods
3.Foraminifera
4.Apicomplexans
Posted Date:-2021-09-01 20:42:20
Ribonucleo-protein particles are the name of
1.DNA
2.Nucleus
3.Eukaryotic ribosomes
4.RNA
Posted Date:-2021-09-01 20:42:20
Ribosomes + m-RNA
1.Polysome
2.Phlosome
3.Polosome
4.None of these
Posted Date:-2021-09-01 20:42:20
Ribosomes are assembled in
1.Nucleolus
2.Nucleus
3.DNA
4.RNA
Posted Date:-2021-09-01 20:42:20
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
Posted Date:-2021-09-01 20:42:20
Stentor is a/an
1.Ciliate
2.Foraniniferan
3.Actinopods
4.Apicomplexan
Posted Date:-2021-09-01 20:42:20
Strengthening material of prokaryotic cell wall is
1.Cellulose
2.Chitin
3.Inorganic salts silica waxes and ligin
4.Peptidoglycan or Murein.
Posted Date:-2021-09-01 20:42:20
The drfinite shape to ciliates is given by
1.Pellicle
2.Penicle
3.Calcium
4.Cell wall
Posted Date:-2021-09-01 20:42:20
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
Posted Date:-2021-09-01 20:42:20
The only group of algae having no flagellated motile cells at any stage is :
1.Chrysophyta
2.Phaeophyta
3.Pyrrophyta
4.Rhodophyta
Posted Date:-2021-09-01 20:42:20
The part of chloroplast where CO2 is fixed to manufacture sugar is
1.Stroma
2.Grana
3.Thylakoid
4.Outer membrane
Posted Date:-2021-09-01 20:42:20
The place of centromere where spindle fibres get attached is
1.Kinetochore
2.Kinochore
3.Centromere region
4.all of these
Posted Date:-2021-09-01 20:42:20
The stent energy in the form of ADP is regenerated by mitochondria into:
1.AMP
2.ADP
3.ATP
4.All of these
Posted Date:-2021-09-01 20:42:20
The type of plastids which help in pollination is
1.Chromoplasts
2.Leucoplasts
3.Chloroplasts
4.All of these
Posted Date:-2021-09-01 20:42:20
Which of the following combination is an example of self replicating organelles?
1.Mitochondria Ribosomes
2.Mitochondria Nucleus
3.Mitochondria Chloroplast
4.Mitochondria Vacuole
Posted Date:-2021-09-01 20:42:20
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
Posted Date:-2021-09-01 20:42:20
Which of the following impart a red colour to Rose petals?
1.Chloroplast
2.Chlorophyll
3.Chromoplast
4.Leucoplast
Posted Date:-2021-09-01 20:42:20
Which of the following is not present in mitochondria?
1.Enzymes
2.Co-enzymes
3.Ribosomes
4.Thylakoids
Posted Date:-2021-09-01 20:42:20
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.
Posted Date:-2021-09-01 20:42:20
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
Posted Date:-2021-09-01 20:42:20
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.
Posted Date:-2021-09-01 20:42:20
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
Posted Date:-2021-09-01 20:42:20
Which of the protozoa has a striking resemblance to collar cells in sponges?
1.Zooflagellates
2.Choanflagellates
3.Trypanosomoa
4.Trichonymphas
Posted Date:-2021-09-01 20:42:20
Who first separated bacteria from other protists as a group?
1.John Hogg
2.Ernst Haeckel
3.Margulis and Schwartz
4.Herbert Copeland
Posted Date:-2021-09-01 20:42:20
Whone is not the function of endoplasmic reticulum?
1.Nerve impulse conduction
2.Transport of material
3.Mechanical support
4.Synthesis of conjugated molecules
Posted Date:-2021-09-01 20:42:20