Cell — Agri Master Mind
Robert brown discovered nucleus in the cells of which of the following?
- Tradescantia
- Drosophila
- Tritcum
- Lilium
tradescantia
Pectin is hydrolysed by which of the following enzymes?
- Pectinase
- Macerozyme
- Polygalacturonase
- All of the above
All of the above
Lysosomes contain which of the following hydrolytic enzyme?
- Acid phosphatase
- Beta-galactosidase
- Acid DNAase
- All of the above
All of the above
Ribosomes are found in which of the following?
- Nucleus
- Rough ER
- Cytosos
- All the above
All of the above
Robert hook is famous for the discovery of which of the following?
- Chromosomes
- Mitochondrion
- Cell
- Plastid
Cell
Who discovered mitochondria?
- Hollicker
- Benda
- Montogomery
- Theodore boveri
Hollicker
Which of the following are surrounded by two membranes?
- Mitochondria
- Chloroplasts
- Nuclei
- All of the above
All of the above
Which of the following organelles does not have DNA?
- Lysosome
- Chloroplasts
- Nucleus
- Mitochondria
Lysosome
Which of the following is the main function of chloroplasts?
- Protein synthesis
- Respiration
- Photosynthesis
- Glycolysis
Photosynthesis
Mitochondria do not occur in which of the following?
- Red algae
- Green algae
- Brown algae
- Bacteria
Bacteria
Which of the following cells of blood do not contain nucleus?
- RBCs (erythrocytes)
- WBCs (leucocytes)
- Platelets (thrombocytes)
- All of the above.
Platelets (thrombocytes)
The vacuoles are filled with which of the following?
- Salt & sugar
- Proteins & Phenol
- Anthocyanin
- All of the above
All of the above
In the presence of low concentration of mg2+ ion prokaryotic ribosomes dissociate into which of the following?
- 50S & 20S
- 50S & 30S
- 40S & 30S
- 55S & 35S
50S & 30S
Ribosomes are essential for the synthesis of which of the following?
- Polysaccharides
- Protein
- Nucleic acids
- Lipids
Protein
Which of the following organisms is not a prokaryote ?
- Bacteria
- Blue-green algae
- Mycoplasma
- Yeast
Yeast
The first compound microscope was constructed by which of the following ?
- Hans Lippershey and Zacharias Janssen
- Z. Jenson and H. Jenson
- Robert Hooke
- A. von Leuwenhoek
Z. Jenson and H. Jenson
Which of the following may contain more than one nucleus per cell ?
- Fungi
- Companion cells of phloem
- Yeast
- Blue-green algae
Fungi
The plastids, which take part in the synthesis and storage of fats are called which of the following ?
- Amyloplasts
- Elaioplasts
- Aleuroneplast
- Fatoplast
Elaioplasts
Which of the following organelles is involved in ATP production by photo- phosphorylation?
- Mitochondria
- Chloroplasts
- Leucoplasts
- Amyloplasts
Chloroplasts
A virus consists of which of the following?
- Nucleic acid
- Protein
- Nucleic acid and protein
- Nucleic acid, proteins and lipids.
Nucleic acid and protein
Which of the following are the main constituents of primary cell wall?
- Pectin and cellulose
- Hemicellulose and cellulose
- Cellulose and lipids
- Hemicellulose and lignin
Hemicellulose and cellulose
Ribosomes are composed of which of the following?
- RNA and protein
- RNA and histones
- RNA. protein and lipid
- Protein and DNA
RNA and protein
Which of the following values represents the size of plant animal ribosomes ?
- 70S
- 80S
- 60S
- 90S
80S
The chloroplasts of higher plants contain which of the following pigment(s)?
- Chlorophyll
- Xanthophyll.
- Carotene
- All of the above
All of the above
Leucoplasts are colourless plastids and function in the storage of which of thefollowing?
- Starch
- Proteins
- Fats
- Starch and fats
Starch and fats
Which of the following is the main function of nucleoli ?
- Production of mRNA
- Production of ribosomes
- Processing of all types of RNA
- Production of snRNA
Production of ribosomes
Which of following does not contain DNA?
- Chloroplasts
- Mitochondria
- Golgi body
- Nucleus
Golgi body
Which of the following pigments is responsible for the red colour of tomato fruits?
- Xanthophyll
- Lycopene
- Anthocyanin
- Carotene
Lycopene
Which of the following provides genetic information for cell function?
- Nucleus
- Plastid
- Mitochondria
- All of the above
All of the above
Which of the following is the shape of chloroplasts of higher plant?
- Spherical
- Discoid/ellipsoidal
- Irregular
- Rectangular
Discoid/ellipsoidal
During 1839, Schlieden and Schwan jointly proposed which of the following theories ?
- Theory of evolution
- Theory of purelines
- Cell-lineage theory
- Cell theory
Cell theory
Which of the following is not correct about fluid-mosaic model of biological membranes? .
- It has a lipid bilayer.
- Some protein molecules span through thelipid bilayer.
- Some protein molecules are associated at the surface of the bilayer.
- The positions of protein molecules are relatively fixed
The positions of protein molecules are relatively fixed
In which of the following organelles,phosphorylation is a common reaction?
- Chloroplasts
- Mitochondria
- Golgi bodies
- Both (a) and (b)
Both (a) and (b)
Which of the following is correct about B cells?
- B cells develop and mature in bone marrow
- Mature B cells leave the bone marrow and migrate vis blood stream to the secondary lymphoid organs or tissues, where they ultimately become plasma cells
- B cells plays an important role in immune system of body.
- All of the above.
All of the above.
Which of the following are surrounded by two membranes ?
- Mitochondria
- Chloroplasts
- Nuclei
- All of the above
All of the above
Among those given below, which one lacks nucleus ?
- Pith parenchyma
- Phloem parenchyma
- Sieve cells of phloem
- Epidermis
Sieve cells of phloem
Which of the following is the main control centre of a cell?
- Chloroplast
- Ribosome
- Mitochondria
- Nucleus
Nucleus
During 1897, the term mitochondria was first used by which of the following ?
- Benda
- Sutton
- Bateson
- Hollicker
Benda
The first electron microscope was constructed by which of the following?
- Jansen and Jansen
- Leuwenhoek
- Knoll and Ruska
- J.H. Taylor
Under light microscope, we can not amine cell structures below the size of which of the following?
- μ
- 0.6 μ
- 0.3 μ
- 1.0 μ
. Which of the following is an example of secondary lymphoid tissue?
- Lymph nodes
- Spleen
- Mucosa associated lymphoid tissues
- All of the above
All of the above
Which of the following constitutes plant cells? I Cell wall II Nucleus III. Cytoplasm IV. Vacuoles
- I, II
- I, II, III, IV
- II, III
- II, III, IV
I, II, III, IV
Which of the following is correct about T cells ? IT lymphocytes mature in the thymus. II. Mature T cells migrate via peripheral lymphoid tissues. III. These cells mediate activation of B cells.
- I. II
- II. III
- I. II. III
- I. III
I. II. III
Which of the following values represents the size of plant animal ribosomes ?
- 70S
- 80S
- 60S
- 90S
80S
The enzymes for the oxidation of amino acids, fatty acids, and Kreb's cycle are present in which of the following?
- Lysosomes
- Golgi bodies
- Mitochondrial matrix
- Microbodies
Mitochondrial matrix
The chloroplasts of higher plants contain which of the following pigment(s)?
- Chlorophyll
- Xanthophyll
- Carotene
- All of the above
All of the above
Which of the following is the most important for growth and synthesis of protoplasm?
- mitochondria
- Nucleus
- Chloroplast
- All of the above
Nucleus
. Which of the following cell constituents is non-living? I Cell wall II. Protoplasm III. Vacuole IV. Cytoplasm
- I, III
- I
- I, IV
- II
I, III
When a primary lysosome fuses with a food vocuole, it is called which of the following?
- Phytosome
- Primary lysosome
- Cytosome
- Secondary lysosome
Secondary lysosome
Which of the following organelles occurs only in plants ?
- Mitochondrion
- Plastid
- Lipochondrion
- Ribosome
Plastid