Que- Maximum number of species of living things on earth are___________?
a. Algae
b. Fungi
c. Insects
d. Protozoa
Answer- Insects
Que- Which statement is true about an aqueous medium________________?
a. Ionic as well as non ionic substance in aqueous media retains their identity
b. Enzymes can not perform catalysis reaction in this medium
c. Ions and molecules move randomly thus are in more favorable state to react with other molecules and ions
d. It is less favorable media for chemical reactions
Answer- Ions and molecules move randomly thus are in more favorable state to react with other molecules and ions
Que- Which of the following carbohydrate is tasteless___________?
a. Monosaccharide
b. Oligosaccharide
c. Polysaccharide
d. None of these
Answer- Polysaccharide
Que- Which of the statement is not true for compounds like glycoprotein and glycolipids____________?
a. They are conjugated molecules of carbohydrates
b. Both have role in the extra cellular matrix of animals and bacterial cell wall
c. They are components of biological membranes.
d. Both are produced and secreted by endoplasmic reticulum
Answer- Both are produced and secreted by endoplasmic reticulum
Que- A complex substance which on hydrolysis yields polyhydroxy aldehyde or ketone subunits is called__________?
a. Lipid
b. Carbohydrate
c. Protein
d. Carotein
Answer- Carbohydrate
Que- Specific heat of vaporization of water is_______________?
a. 574 Kcal/kg
b. 674 Kcal/kg
c. 774 Kcal/kg
d. 874 Kcal/kg
Answer- 574 Kcal/kg
Que- Cn(H2O)n. is a general formula of_____________?
a. Monosaccharides
b. Oligosaccharides
c. Ploysacharides
d. Carbohydrates
Answer- Carbohydrates
Que- Which one are most complex sugar_____________?
a. Monosaccharides
b. Oligosaccharides
c. Polysaccharides
d. None of these
Answer- Polysaccharides
Que- Variety among amino acids is produced due to_____________?
a. NH2 group
b. COOH group
c. R group
d. All of these
Answer- R group
Que- Primary structure of proteins determines__________?
a. Number of polypeptide chains involved
b. Bending of polypeptide chains
c. Amino acid sequence
d. Coiling of polypeptide chains
Answer- Amino acid sequence
Que- Ribose is an example of___________?
a. Trioses
b. Tetroses
c. Pentose
d. Hexose
Answer- Pentose
Que- The one which is not a globular protein__________?
a. Anti Rh-antibody
b. Enzyme
c. Myosin
d. Haemoglobin
Answer- Myosin
Que- Starch cellulose and glaycogen yield ___________ on complete hydrolysis?
a. Maltose
b. Sucrose
c. Fructose
d. Glucose
Answer- Glucose
Que- ____________% of Glucose normally present in our blood is?
a. 0.008
b. 8.0E-4
c. 0.018
d. 0.08
Answer- 8.0E-4
Que- Which of the following carbohydrate can not be hydrolysed__________________?
a. Monosaccharide
b. Oligosaccharide
c. Polysaccharide
d. None of these
Answer- Monosaccharide
Que- An enzyme which converts a dipeptide into separate amino acids is an example of__________?
a. Decarboxylase
b. Hydrolase
c. Oxidoreductase
d. Transferase
Answer- Hydrolase
Que- Which one is soluble in hot water_____________?
a. Starch
b. Glycogen
c. Amylose
d. Amylopectin.
Answer- Amylose
Que- For the synthesis of 10g of glucose ______________ of energy is required?
a. 717.6 Kcal
b. 727 Kcal
c. 737 Kcal
d. 747 Kcal
Answer- 717.6 Kcal
Que- Cellular digestion is associated with which organelle__________?
a. Mitochondria
b. Golgi bodies
c. Plastids
d. Lysosomes
Answer- Lysosomes
Que- The covalent bond between two monosaccharide subunits is called________________?
a. Phosphodiester bond
b. Peptide bond
c. Glycosidic Bond
d. Ionic bond
Answer- Glycosidic Bond
Que- The unicellular organisms ingest large molecules into their cytoplasm from the external environment without previously digesting them. This process is called___________?
a. Diffusion
b. Osmosis
c. Phagocytosis
d. Plasmolysis
Answer- Phagocytosis
Que- Which of the following polysaccharide is called animal starch_________________?
a. Starch
b. Glycogen
c. Cellulose
d. None of these
Answer- Glycogen
Que- Which one gives blue colour with iodine_______________?
a. Starch
b. Glycogen
c. Cellulose
d. Polysaccharide
Answer- Starch
Que- Mycoplasmas have been included in bacteria because:
a. Do not have a cell wall
b. Are heterotrophic
c. Lack membrane bounded organelles
d. Reproduce by binary fission
Answer- Lack membrane bounded organelles
Que- Which one is abundant in animals___________?
a. Starch
b. Glycogen
c. Cellulose
d. None of these
Answer- Glycogen
Que- The one which can tolerate highest external osmotic pressure is __________?
a. Algae
b. Amoeba
c. Fungi
d. Bacteria
Answer- Fungi
Que- The cell wall of oomycetes is chiefly composed of___________?
a. Chitin
b. Cellulose
c. Lignin
d. Proteins
Answer- Cellulose
Que- __________ is example of pure form of cellulose?
a. Silk
b. Wool
c. Cotton
d. Paper
Answer- Cotton
Que- A compound produced as a result of a chemical reaction of an alcohol with an acid in which water molecule is released is called________________?
a. Monosaccharide
b. Fatty acid
c. Neutral lipid
d. Nucleic acid
Answer- Neutral lipid
Que- Lipids are soluble in which of the following_______________?
a. Water
b. Ether
c. All solvents
d. Not in any of the above
Answer- Ether
Que- One celled green ptotists are included in___________?
a. Monera
b. Algae
c. Slime molds
d. Plants
Answer- Algae
Que- Lipid molecules can store double amount of energy as compared to same amount of carbohydrate because of high number of__________________?
a. C-C bonds
b. C-H bonds
c. C-N bonds
d. C-O bonds
Answer- C-H bonds
Que- Fatty acids containing 18 C atoms and a single double bond is____________?
a. Saturated Fatty acid
b. Unsaturated fatty acid
c. Oleic Acid
d. Plamitic acid
Answer- Oleic Acid
Que- Pick the odd one out
a. Psilophyton
b. Rhynia
c. Cooksonia
d. Psilotum
Answer- Psilotum
Que- Which of the following statement is incorrect5 for fats containing unsaturated fatty acid_____________?
a. They contain double bond
b. They are usually solid at room temperature
c. They are lighter than water
d. Their specific gravity is less than 1
Answer- They are usually solid at room temperature
Que- Which one the following fatty acid is more soluble in an organic solvent and has higher melting point____________?
a. Acetic acid
b. Butyric acid
c. Palmitic acid
d. All have same
Answer- Palmitic acid
Que- Peptide bond is_____________?
a. C-N link
b. C- O lind
c. N-H link
d. C-H link
Answer- C-N link
Que- Animals obtain carbohydrates mainly from___________?
a. Glucose
b. Starch
c. Sucrose
d. Glycogen
Answer- Starch
Que- The one which is incorrect pair?
a. Sori – Indusium
b. Arthrophytes – Jointed
c. Dichotomous – Vernation
d. Lycopods – Ground pries
Answer- Dichotomous – Vernation
Que- Double fertilization occurs in_________?
a. All plants
b. All seed plants
c. Gymnosperms
d. Angiosperms
Answer- Angiosperms
Que- Proteins comprise of ___________% of the total dry weight of a cell?
a. 0.4
b. 0.5
c. 0.6
d. 0.7
Answer- 0.5
Que- Adult birds normally possess only one functional____________?
a. Ureter
b. Ovary
c. Lung
d. Testis
Answer- Ovary
Que- Chemical component/s less in eukaryotic cell as compared to prokaryotic cell is / are (i) lipids (ii) carbodydrates (iii) proteins (iv) DNA_________________?
a. i & ii
b. iii & iv
c. i ii iii & iv
d. iv only
Answer- iv only
Que- Following possess bilateral symmetry as larva and radial symmetry as adult:
a. Chordata
b. Hydra
c. Echinodermata
d. Hemichordata
Answer- Echinodermata
Que- Proteins are polymers of___________?
a. Fatty acids
b. Isoprenoid units
c. Amino acids
d. Nucleotides
Answer- Amino acids
Que- Which of the following is the empirical formula of chlorophyll b?
a. C55H70O5N4Mg
b. C55H72O6N4Mg
c. C55H70O6N4Mg
d. C55H72O5N4Mg
Answer- C55H70O6N4Mg
Que- In Glycin an amino acid R group is replaced by____________?
a. H
b. CH3
c. COOH
d. C = O
Answer- H
Que- How many moles of carbon dioxide are produced by complete oxidation of one mole of puruvic acid?
a. 1.0
b. 2.0
c. 3.0
d. 6.0
Answer- 3.0
Que- The element in basic structure of proteins which differentiate them from carbohydrates________?
a. C
b. S
c. H
d. N
Answer- S
Que- Hunger pangs usually begin ______ after the previous meal.
a. 2-4 hours
b. 6-8 hours
c. 10-12 hours
d. 12-24 hours
Answer- 12-24 hours
Que- Total number of amino acids discovered so far in cells and tissues are______________?
a. 20.0
b. 25.0
c. 150.0
d. 170.0
Answer- 170.0
Que- The major constituent of blood plasma is___________?
a. Protein
b. NaCl
c. Water
d. Cholesterol
Answer- Water
Que- An insulin molecule consists of _________ polypeptide chains?
a. 1.0
b. 2.0
c. 3.0
d. 4.0
Answer- 2.0
Que- The windpipe or trachea lies?
a. Dorsal to oesophagus
b. Ventral to oesophagus
c. Lateral to oesophagus
d. None of these
Answer- None of these
Que- A bond formed by linkage between -OH of carboxyl group of one amino acid and H of amino group of another amino acid which releases water is called__________?
a. Phosphodiester linkage
b. Glycosidic bond
c. Peptide bond
d. Hydrogen bond
Answer- Peptide bond
Que- Total number of amino acids in a hemoglobin molecule are__________?
a. 554.0
b. 564.0
c. 574.0
d. 584.0
Answer- 574.0
Que- Which structure of protein gives information aboutnumber and sequence of amino acids in it_______________?
a. Primary structure
b. Secondary structure
c. Tertiary structure
d. Quaternary structure
Answer- Primary structure
Que- Locomotory structures are not found in which of the following group?
a. Amoebas
b. Zooflagellates
c. Ciliates
d. Apicomplexans
Answer- Apicomplexans
Que- Hemoglobin molecule exhibits which structural organization of proteins___________?
a. Primary structure
b. Secondary structure
c. Tertiary structure
d. Quaternary structure
Answer- Quaternary structure
Que- Yeasts reproduce asexually by forming____________?
a. Asci
b. Basidia
c. Both a & b
d. Buds
Answer- Buds
Que- In an aqueous environment the most stable tertiary conformation is that in which _________ amino acids are buried inside the conformation?
a. Hydrophobic
b. Hydrophilic
c. Basic
d. None of these
Answer- Hydrophobic
Que- Which of the following statement is incorrect about RNA_________________?
a. The pentose sugar in it is Ribose.
b. It contains Adenine Guanine Thymine and Cytosine
c. It is present in the nucleoli
d. It may be folded back on itself to give double helical characteristics.
Answer- It contains Adenine Guanine Thymine and Cytosine
Que- Protein coasts of viruses are synthesized in____________?
a. Lytic cycle
b. Lysogenic cycle
c. Both a & b
d. All of these
Answer- Lytic cycle
Que- Each turn of DNA contain ____________ nitrogenous base pairs?
a. 5.0
b. 10.0
c. 20.0
d. 25.0
Answer- 10.0
Que- Membranes of the grane are sites where?
a. Oxygen is stored
b. Food is stored
c. Sunlight is trapped
d. CO2 is stored.
Answer- Sunlight is trapped
Que- Antibodies play important role against microorganisms and other pathogens to which type of proteins do they belong________?
a. Globular proteins
b. Fibrous Proteins
c. Both a and b
d. None of these
Answer- Globular proteins
Que- The simplest of oxygen producting photosynthetic organisms are____________?
a. Algae
b. Bacteria
c. Cyanobacteria
d. Chlamydomonas
Answer- Cyanobacteria
Que- Amphoixus is a__________?
a. Chordate
b. Protochordate
c. Lower chordate
d. All of these
Answer- All of these
Que- Which structural organization is most common in globular proteins____________?
a. Primary
b. Secondary
c. Tertiary
d. Quaternary
Answer- Tertiary
Que- Which of the following does not show quaternary structure____________?
a. Haemoglobin
b. Pepsin
c. Fibrin
d. Insulin
Answer- Fibrin
Que- Which of the following occurs in anaerobic respiration but not in aerobic respiration?
a. Release of CO2
b. Reduction of NAD
c. Formation of ATP
d. Production of ethanol from acetaldehyde
Answer- Production of ethanol from acetaldehyde
Que- helical structure is kept by the formation of _________ bonds among amino acids molecules?
a. H bonds
b. Disulphide Bond
c. Ionic bond
d. Hydrophobic bonds
Answer- H bonds
Que- Which of the following are triploblastic and acoelomate?
a. Sponges
b. Annelida
c. Platyhelminthes
d. Aves
Answer- Platyhelminthes
Que- The food of hydra consists of___________?
a. Humus
b. Detritus
c. Dead microscopic animals
d. Small crustaceans
Answer- Small crustaceans
Que- Actin and myosin are the basic proteins involved in contractile machinery of our body to which type of proteins do they belong____________?
a. Globular proteins
b. Fibrous Proteins
c. Both a and b
d. None of these
Answer- Fibrous Proteins
Que- If a plasmolysed plant cell is placed in water the cell will___________?
a. Burst
b. Be Killed
c. Be deplasmolysed
d. Show no change in it
Answer- Be deplasmolysed
Que- ATP is a an important molecule for its major function___________?
a. As an energy currency of the cell
b. As a coenzyme
c. Both a and b
d. None of these
Answer- As an energy currency of the cell
Que- The first organism of whose genome was completely discovered was____________?
a. Human beings
b. Influenza Virus
c. Hemophilus Influenza
d. None of these
Answer- Hemophilus Influenza
Que- All of the following veins carry deoxygenated blood except
a. Superior vena cava
b. Inferior vena cava
c. Hepatic vein
d. Pulmonary vein
Answer- Pulmonary vein
Que- Animals fats are ______________ atroom temperature?
a. Liquids
b. Gases
c. Solids
d. None of these
Answer- Solids
Que- Sebum produced from sebaceous glands in a mammal helps in___________?
a. Protection against micro organisms
b. Temperature regulation
c. Excretion
d. All of these
Answer- Protection against micro organisms
Que- Which one is not found in fatty acids in acylglycerols____________?
a. C-6
b. C-25
c. C-26
d. C-30
Answer- C-25
Que- The one that stores calcium is __________?
a. Sarcolemma
b. Sarcoplasm
c. Sarcoplasmic reticulum
d. Cytosol
Answer- Sarcoplasmic reticulum
Que- Which one of the following is most likely to occur in an animal during winter?
a. Activation of sweat glands
b. Dilation of skin blood vessels
c. Panting
d. Thermogenesis
Answer- Thermogenesis
Que- In esterification OH comes from_______________?
a. Organic acid
b. Alcohol
c. Water
d. Sugar
Answer- Alcohol
Que- How many carbon atoms are required to form a furan ring (ribofuranose)_____________?
a. 3.0
b. 4.0
c. 5.0
d. 2.0
Answer- 4.0
Que- Sleep movements are a type of___________?
a. Turgor movements
b. Growth movements
c. Tactic movements
d. Paratonic movments
Answer- Turgor movements
Que- Keto group is represented as___________?
a. CO
b. C-COO-C
c. HCOH
d. HOH
Answer- CO
Que- The type of learning in which there is loss or decrease in response to repeated stimuli?
a. Imprinting
b. Habituation
c. Latent learning
d. Insight learning
Answer- Habituation
Que- Glycolipids and glycoproteins have structural role in the ______________ matrix of animal and bacterial cell?
a. Extracellular
b. Intracellular
c. Both of these
d. Glucose
Answer- Extracellular
Que- The cells present in testes and secrete testosterone are___________?
a. Sertoli cells
b. Germinal cell
c. Interstitial cells
d. Spermatocyte
Answer- Interstitial cells
Que- In Cx(H2O)y x ranges from______________?
a. 1 to 3 thousand
b. 3 to many thousand
c. 3 to 5 thousand
d. 5 to 9 thousand
Answer- 3 to many thousand
Que- Exposure to low temperature stimulates plants to flower. This is called___________?
a. Photoperiodism
b. Thermotropism
c. Vernalisation
d. Thermoregulation
Answer- Vernalisation
Que- The basic structural unit of a chromosome is____________?
a. The centromere
b. Nuceleosome
c. Telomere
d. Histone
Answer- Nuceleosome
Que- In living organisms the lubricant which provides protection against damage resulting from friction is___________?
a. Carbohydrates
b. Fatty acid
c. Water
d. Protein
Answer- Water
Que- The first stage of development in which a cavity appears is the__________?
a. Neurula
b. Morula
c. Gastrula
d. Balastula
Answer- Balastula
Que- The trioses which are intermediate in respiration and photosynthesis are_______________?
a. Glyceraldehydes
b. Dihydroxy acetone
c. Both of these
d. None of these
Answer- Both of these
Que- The one which causes contraction of wall of the uterus during and after birth?
a. ADH
b. MSH
c. Oxytocin
d. Progesterone
Answer- Oxytocin
Que- The monosaccharide found in some bacteria and occurring rarely are______________?
a. Trioses
b. Hexoses
c. Tetroses
d. Pentoses
Answer- Tetroses
Que- Which statement correctly describes the transcription of DNA?
a. It produces another DNA molecule
b. It produces mRNA
c. It is a semi conservation process
d. It occurs at surface of ribosomes
Answer- It produces mRNA