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MCQOPTIONS
This section includes 5751 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 2801. |
ADH influences water permbeality in the |
| A. | Regulation of blood pressure |
| B. | Removal of urea |
| C. | Regulation of acidity of fluids |
| D. | secretion of antibiotics |
| Answer» C. Regulation of acidity of fluids | |
| 2802. |
Uric acid is formed in human from |
| A. | purines |
| B. | protines |
| C. | glucose |
| D. | pyrimidines |
| Answer» B. protines | |
| 2803. |
Which of the following is correct for the quaternary structure of protein? |
| A. | It represents a three dimensional form of whole protein |
| B. | It forms with interaction between different polypeptide Chain. |
| C. | a and b both |
| D. | It forms the three dimensional arrangement of the atoms within a single polypeptide chain |
| Answer» D. It forms the three dimensional arrangement of the atoms within a single polypeptide chain | |
| 2804. |
The yellow colour of urine of the vertebrates in due to |
| A. | Cholesterol |
| B. | Urochrome |
| C. | Uric acid |
| D. | Malamin |
| Answer» C. Uric acid | |
| 2805. |
Polypeptide means: |
| A. | A polypeptide chain is formed by more than two nucleotides |
| B. | A polypeptide chains is formed by more than two amino acids |
| C. | A polypeptide chains is formed by many similar amino acids |
| D. | A polypeptide chain is formed by many similar nucleotides |
| Answer» C. A polypeptide chains is formed by many similar amino acids | |
| 2806. |
Which of the following process is formed by – COOH linked to – NH2 (peptide bond) |
| A. | Hydrogenation |
| B. | Dehydrogenation |
| C. | Reduction |
| D. | Oxidation |
| Answer» C. Reduction | |
| 2807. |
Excretory structure of earthworms is... |
| A. | Malpighian tubules |
| B. | Nephridia |
| C. | Kidney |
| D. | Anternal glands |
| Answer» C. Kidney | |
| 2808. |
What –‘X’ indicates in the given figure? |
| A. | N-terminal |
| B. | P-terminal |
| C. | C-terminal |
| D. | H-terminal |
| Answer» D. H-terminal | |
| 2809. |
Inner living of Bowman’s capsule is lined by: |
| A. | Podocytes |
| B. | Squamous calls |
| C. | Microvilli |
| D. | Colummar calls |
| Answer» E. | |
| 2810. |
The secondary structure of protein means |
| A. | The flat and sheet like polypeptide chain |
| B. | The helically coilde like polypeptide chain |
| C. | The folding of polypeptide chain due to the presence of hydrogen bond |
| D. | a, b, c all |
| Answer» E. | |
| 2811. |
The primary structure of proteins is due to |
| A. | Ionic bonds |
| B. | Peptide bonds |
| C. | Hydrogen bond |
| D. | S-S Linkages |
| Answer» C. Hydrogen bond | |
| 2812. |
Proteins means |
| A. | Micromolecule |
| B. | Macromolecule |
| C. | Soluble |
| D. | Colloidal |
| Answer» C. Soluble | |
| 2813. |
Dipeptide means: |
| A. | Two similar amino acids attached by peptide bond |
| B. | Two dissimilar amino acids attached by peptide bond |
| C. | Two similar or dissimilar amino acids attached by peptide bond |
| D. | Two similar or dissimilar proteins attached by peptide bond |
| Answer» D. Two similar or dissimilar proteins attached by peptide bond | |
| 2814. |
Aspartic acid and lysine are linkage each other with which bond: |
| A. | Ester bond |
| B. | Glycoside bond |
| C. | Phosphodiaster bond |
| D. | Peptide bond |
| Answer» E. | |
| 2815. |
Match column – I and column –II and select the correct option: |
| A. | iii iv ii i |
| B. | ii I iv iii |
| C. | I iv ii iii |
| D. | iii ii iv i |
| Answer» B. ii I iv iii | |
| 2816. |
The structure of protein can be denatured by |
| A. | At high temperature |
| B. | In dilute solution of acid |
| C. | In the presence of CO2 |
| D. | a, b, c all |
| Answer» B. In dilute solution of acid | |
| 2817. |
Which macromolecule is the most diverse in cell and controlling biochemical Properties? |
| A. | Polynucleotide |
| B. | Polysaccharide |
| C. | Polypeptide |
| D. | polysomes |
| Answer» D. polysomes | |
| 2818. |
Proteins Consist which one of the following |
| A. | One polypeptide |
| B. | One polypeptide chain |
| C. | One or more polypeptide chain |
| D. | One and other – chain |
| Answer» D. One and other – chain | |
| 2819. |
Find out the miss matched pair |
| A. | Melanin-imparts color to the body |
| B. | Hemoglobin – transport of oxygen |
| C. | Chlorophyll – must for photosynthesis |
| D. | Immunoglobulin- responsible for movements of body |
| Answer» E. | |
| 2820. |
Amino acids are attached each other with which bond? |
| A. | Ester bonds |
| B. | Hydrogen bonds |
| C. | Sulphur bonds |
| D. | peptide bonds |
| Answer» E. | |
| 2821. |
Which one of the following is an amphoteric compound? |
| A. | Fatty acid |
| B. | Glutamic acid |
| C. | Nucleic acid |
| D. | Cellulose |
| Answer» C. Nucleic acid | |
| 2822. |
What is the shape of the three dimensional structure of protein? |
| A. | Flat sheet like |
| B. | Globular |
| C. | Fibrous |
| D. | b or c |
| Answer» E. | |
| 2823. |
Which of the following bond groups are involved in the formation of quaternary Protein? |
| A. | Peptide bond, covalent bond |
| B. | Disulphide bond, Ionic bond |
| C. | Easter bond, phosphodiester bond |
| D. | b and c both |
| Answer» C. Easter bond, phosphodiester bond | |
| 2824. |
End of every polypeptide chain is known as: |
| A. | Template |
| B. | Signal |
| C. | Antenna |
| D. | Terminal |
| Answer» E. | |
| 2825. |
Which of the following statement is incorrect about lmmunoglobulin? |
| A. | It has the property of immunity |
| B. | It consist of more than one polypeptide chain |
| C. | It present in blood cell |
| D. | b and c both |
| Answer» D. b and c both | |
| 2826. |
Which is the correct option for the following diagram? |
| A. | Fibrous protein |
| B. | Globular protein |
| C. | Polypeptide chain |
| D. | Three dimensional form of protein |
| Answer» D. Three dimensional form of protein | |
| 2827. |
Which are the terminals of polypeptide chain? |
| A. | ‘R’ and ‘N’ terminal |
| B. | ‘P’ and ‘R’ terminal |
| C. | ‘H’ and ‘N’ terminal |
| D. | ‘N’ and ‘C’ terminal |
| Answer» E. | |
| 2828. |
Which one of the following statement about amino acid is incorrect? |
| A. | They are classified on the basis of the ‘R’ group |
| B. | The structure of almost all amino acids are similar except their ‘R’ group |
| C. | All protein molecules are a heteropolymer of amino acid |
| D. | They are very important compounds of cytoplasm |
| Answer» E. | |
| 2829. |
Which one is not correct for hemoglobin? |
| A. | It is known as conjugated protein |
| B. | It is the combination 0f 2- α and 2-β chain |
| C. | It is a protein which imparts color to the body |
| D. | It is molecule which contains four hacme groups. |
| Answer» D. It is molecule which contains four hacme groups. | |
| 2830. |
Which bimolecular fights against infectious organisms? |
| A. | Lipid |
| B. | Nucleic acid |
| C. | Protein |
| D. | Enzyme |
| Answer» D. Enzyme | |
| 2831. |
Fibrous root in maize develop from: |
| A. | Lower internode |
| B. | Lower nodes |
| C. | Upper nodes |
| D. | None of the above |
| Answer» C. Upper nodes | |
| 2832. |
State the mutant gene Which converts the male flowers into female flowers In Maize plant |
| A. | TA TA |
| B. | ta ta |
| C. | TA Ta |
| D. | Both (A) &(C) |
| E. | cessive |
| Answer» C. TA Ta | |
| 2833. |
Which of the following structure present in abundance in subcutaneous tissue :- |
| A. | Yellow elastic tissue |
| B. | Adipose tissue |
| C. | White fibrous tissue |
| D. | Tendon |
| Answer» C. White fibrous tissue | |
| 2834. |
When the surface cells of stratified epithelium contain insoluble protein (Keratin) the tissue is called :- |
| A. | Stratified Squamous Keratinised |
| B. | Stratified Ciliated Keratinised |
| C. | Stratified Cuboidal Keratinised |
| D. | Stratified Columnar Keratinised |
| Answer» B. Stratified Ciliated Keratinised | |
| 2835. |
Which of the following is not a component of connective tissue proper . |
| A. | Adipose tissue |
| B. | Tendon |
| C. | Cartilage |
| D. | Ligament |
| Answer» D. Ligament | |
| 2836. |
First transgenic mouse grew twice the normal size after drinking _______ containing water. |
| A. | cu |
| B. | Fe |
| C. | Zn |
| D. | Ra |
| Answer» D. Ra | |
| 2837. |
The hairs present in maize corn cob are: (AIPMT,2000,2006) |
| A. | Style |
| B. | Stigma |
| C. | Seed hairs |
| D. | Modified hairs of bracts |
| Answer» B. Stigma | |
| 2838. |
The protective cover of the radicle in maize seed is called |
| A. | Micorhiza |
| B. | Coleptile |
| C. | Scutelum |
| D. | Coleorhiza |
| Answer» E. | |
| 2839. |
Give examples of elastic bond |
| A. | Tendon |
| B. | Cartilage |
| C. | Ligament |
| D. | (B) and (C) both |
| Answer» B. Cartilage | |
| 2840. |
Which tissue occurs with in the passages of the excretory organs :- |
| A. | Ciliated Stratified epithelium |
| B. | Squamous Stratified epithelium |
| C. | Transitional epithelium |
| D. | Cuboidal Stratified epithelium |
| Answer» E. | |
| 2841. |
It is composed of bundles of collagen fibers :- |
| A. | Tendon |
| B. | White-fibro cartilage |
| C. | Hyaline cartilage |
| D. | White fibrous tissue |
| Answer» B. White-fibro cartilage | |
| 2842. |
Which cells of areolar tissue are able to move and ingest foreign particles |
| A. | Fibroblast |
| B. | Mast cells |
| C. | Histocytes |
| D. | All above |
| Answer» D. All above | |
| 2843. |
Which of the following tissue in normally found in tendon . |
| A. | Hyaline cartiage |
| B. | White fibrous tissue |
| C. | Ligament |
| D. | Areolar tissue |
| Answer» C. Ligament | |
| 2844. |
Which Structure is able to move in areolar tissue |
| A. | Adipose cell |
| B. | Phagocytic cell |
| C. | Fibroblasts |
| D. | Mast cell |
| Answer» C. Fibroblasts | |
| 2845. |
Name the structure arranged on basement membrane in compound epithelium :- |
| A. | Malpighian Corpuscle |
| B. | Malpighian tubule |
| C. | Germinative layer |
| D. | Malpighian body |
| Answer» D. Malpighian body | |
| 2846. |
Which type of epithelium is present in the inner lining of large bronchi :- |
| A. | Squamous epithelium |
| B. | Pseudo - stratified epithelium |
| C. | Cuboidal epithelium |
| D. | Columnar epithelium |
| Answer» C. Cuboidal epithelium | |
| 2847. |
Which of the following structure are made of several layer's of cells :- |
| A. | Ciliated epithelium |
| B. | Stratified epithelium |
| C. | Cuboidal epithelium |
| D. | Columnar epithelium |
| Answer» C. Cuboidal epithelium | |
| 2848. |
Which of the following is not a component of Skeletal connective tissue :- |
| A. | Compact bone |
| B. | White-fibro cartilage |
| C. | Calcified cartilage |
| D. | Areolar tissue |
| Answer» E. | |
| 2849. |
Which connective tissue proper is made up of two types of fibre and cells :- |
| A. | Tendon |
| B. | White fibrous tissue |
| C. | Ligament |
| D. | Areolar tissue |
| Answer» E. | |
| 2850. |
Which simple epithelium tissue cells are square in vertical sections and Polygonal in horizontal section |
| A. | Columnar epithelium |
| B. | Squamous epithelium |
| C. | Cuboidal epithelium |
| D. | Ciliated epithelium |
| Answer» D. Ciliated epithelium | |