Exposure to low temperature stimulates plants to flower. This is called___________?
A. Photoperiodism
B. Thermotropism
C. Vernalisation
D. Thermoregulation
Biology Mcqs
In Cx(H2O)y x ranges from______________?
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
The cells present in testes and secrete testosterone are___________?
The cells present in testes and secrete testosterone are___________?
A. Sertoli cells
B. Germinal cell
C. Interstitial cells
D. Spermatocyte
Glycolipids and glycoproteins have structural role in the ______________ matrix of animal and bacterial cell?
Glycolipids and glycoproteins have structural role in the ______________ matrix of animal and bacterial cell?
A. Extracellular
B. Intracellular
C. Both of these
D. Glucose
The type of learning in which there is loss or decrease in response to repeated stimuli?
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
Keto group is represented as___________?
Keto group is represented as___________?
A. CO
B. C-COO-C
C. HCOH
D. HOH
Sleep movements are a type of___________?
Sleep movements are a type of___________?
A. Turgor movements
B. Growth movements
C. Tactic movements
D. Paratonic movments
How many carbon atoms are required to form a furan ring (ribofuranose)_____________?
How many carbon atoms are required to form a furan ring (ribofuranose)_____________?
A. 3
B. 4
C. 5
D. 2
In esterification OH comes from_______________?
In esterification OH comes from_______________?
A. Organic acid
B. Alcohol
C. Water
D. Sugar
Which one of the following is most likely to occur in an animal during winter?
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