Which of the following are triploblastic and acoelomate?
A. Sponges
B. Annelida
C. Platyhelminthes
D. Aves
Biology Mcqs
helical structure is kept by the formation of _________ bonds among amino acids molecules?
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
Which of the following occurs in anaerobic respiration but not in aerobic respiration?
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
Which of the following does not show quaternary structure____________?
Which of the following does not show quaternary structure____________?
A. Haemoglobin
B. Pepsin
C. Fibrin
D. Insulin
Which structural organization is most common in globular proteins____________?
Which structural organization is most common in globular proteins____________?
A. Primary
B. Secondary
C. Tertiary
D. Quaternary
Amphoixus is a__________?
Amphoixus is a__________?
A. Chordate
B. Protochordate
C. Lower chordate
D. All of these
The simplest of oxygen producting photosynthetic organisms are____________?
The simplest of oxygen producting photosynthetic organisms are____________?
A. Algae
B. Bacteria
C. Cyanobacteria
D. Chlamydomonas
Antibodies play important role against microorganisms and other pathogens to which type of proteins do they belong________?
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
Membranes of the grane are sites where?
Membranes of the grane are sites where?
A. Oxygen is stored
B. Food is stored
C. Sunlight is trapped
D. CO2 is stored.
Each turn of DNA contain ____________ nitrogenous base pairs?
Each turn of DNA contain ____________ nitrogenous base pairs?
A. 5
B. 10
C. 20
D. 25