861. In Cx(H2O)y x ranges from______________?
✅ B. 3 to many thousand
Option A: 1 to 3 thousand Option B: 3 to many thousand Option C: 3 to 5 thousand Option D: 5 to 9 thousand Correct Answer : 3 to many thousand Read more
Biology MCQs – Page 44
862. Exposure to low temperature stimulates plants to flower. This is called___________?
✅ C. Vernalisation
Option A: Photoperiodism Option B: Thermotropism Option C: Vernalisation Option D: Thermoregulation Correct Answer : Vernalisation Read more
863. The basic structural unit of a chromosome is____________?
✅ B. Nuceleosome
Option A: The centromere Option B: Nuceleosome Option C: Telomere Option D: Histone Correct Answer : Nuceleosome Read more
864. In living organisms the lubricant which provides protection against damage resulting from friction is___________?
✅ C. Water
Option A: Carbohydrates Option B: Fatty acid Option C: Water Option D: Protein Correct Answer : Water Read more
865. The first stage of development in which a cavity appears is the__________?
✅ D. Balastula
Option A: Neurula Option B: Morula Option C: Gastrula Option D: Balastula Correct Answer : Balastula Read more
866. The trioses which are intermediate in respiration and photosynthesis are_______________?
✅ C. Both of these
Option A: Glyceraldehydes Option B: Dihydroxy acetone Option C: Both of these Option D: None of these Correct Answer : Both of these Read more
867. Sleep movements are a type of___________?
✅ A. Turgor movements
Option A: Turgor movements Option B: Growth movements Option C: Tactic movements Option D: Paratonic movments Correct Answer : Turgor movements Read more
868. Keto group is represented as___________?
✅ A. CO
Option A: CO Option B: C-COO-C Option C: HCOH Option D: HOH Correct Answer : CO Read more
869. The type of learning in which there is loss or decrease in response to repeated stimuli?
✅ B. Habituation
Option A: Imprinting Option B: Habituation Option C: Latent learning Option D: Insight learning Correct Answer : Habituation Read more
870. Glycolipids and glycoproteins have structural role in the ______________ matrix of animal and bacterial cell?
✅ A. Extracellular
Option A: Extracellular Option B: Intracellular Option C: Both of these Option D: Glucose Correct Answer : Extracellular Read more
871. The cells present in testes and secrete testosterone are___________?
✅ C. Interstitial cells
Option A: Sertoli cells Option B: Germinal cell Option C: Interstitial cells Option D: Spermatocyte Correct Answer : Interstitial cells Read more
872. In esterification OH comes from_______________?
✅ B. Alcohol
Option A: Organic acid Option B: Alcohol Option C: Water Option D: Sugar Correct Answer : Alcohol Read more
873. How many carbon atoms are required to form a furan ring (ribofuranose)_____________?
✅ B. 4
Option A: 3 Option B: 4 Option C: 5 Option D: 2 Correct Answer : 4 Read more
874. Actin and myosin are the basic proteins involved in contractile machinery of our body to which type of proteins do they belong____________?
✅ B. Fibrous Proteins
Option A: Globular proteins Option B: Fibrous Proteins Option C: Both a and b Option D: None of these Correct Answer : Fibrous Proteins Read more
875. If a plasmolysed plant cell is placed in water the cell will___________?
✅ C. Be deplasmolysed
Option A: Burst Option B: Be Killed Option C: Be deplasmolysed Option D: Show no change in it Correct Answer : Be deplasmolysed Read more
876. ATP is a an important molecule for its major function___________?
✅ A. As an energy currency of the cell
Option A: As an energy currency of the cell Option B: As a coenzyme Option C: Both a and b Option D: None of these Correct Answer : As an energy currency of the cell Read more
877. The first organism of whose genome was completely discovered was____________?
✅ C. Hemophilus Influenza
Option A: Human beings Option B: Influenza Virus Option C: Hemophilus Influenza Option D: None of these Correct Answer : Hemophilus Influenza Read more
878. All of the following veins carry deoxygenated blood except
✅ D. Pulmonary vein
Option A: Superior vena cava Option B: Inferior vena cava Option C: Hepatic vein Option D: Pulmonary vein Correct Answer : Pulmonary vein Read more
879. Animals fats are ______________ atroom temperature?
✅ C. Solids
Option A: Liquids Option B: Gases Option C: Solids Option D: None of these Correct Answer : Solids Read more
880. Sebum produced from sebaceous glands in a mammal helps in___________?
✅ A. Protection against micro organisms
Option A: Protection against micro organisms Option B: Temperature regulation Option C: Excretion Option D: All of these Correct Answer : Protection against micro organisms Read more