Astronauts may use which technique to grow fruits and vegetables ??
A. Tissue culture techniques
B. Cloning
C. Pasterisation
D. Hydroponic culture technique
Category: Biology Mcqs
___________ respiration is directly involved in the production of energy, necessary for all living activities??
A. Organismic
B. Cellular
C. Both of these
D. None of these
Pepsinogen is produced from__________??
A. Mucous cells
B. Parietal cells
C. Zymogen cells
D. All of these
Which of the following is responsible for Irish potato famine??
A. Dinoflagellates
B. Kleps
C. Physarum polycephalum
D. Phytophthora infestans
Animals of which class of arthropoda are present everywhere_____________??
A. Crustacean
B. Insecta
C. Arachnida
D. Myriapoda
Purine and pyrimidine metabolism results in production of____________??
A. Creatinine
B. Trimethyamine oxide
C. Xanthine
D. None of these
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
Enteron in coelenterates acts as___________??
A. Digestive cavity
B. Body cavity
C. Transporting cavity
D. all of these
Normally, in the process of osmosis, the net flow of water molecules into or out of the cell depends upon differences in the ??
A. Concentration of water molecules inside and outside the cell
B. Concentration of enzymes on either side of the cell membrane
C. Rate of molecular motion on either side of the cell membrane
D. None of these
In esterification OH comes from_______________??
A. Organic acid
B. Alcohol
C. Water
D. Sugar
