How many hearts does an Octopus have?

Related Mcqs:

1. Which of the following is true about hearts of earthworm?

   A. There are 5-7 pairs of heart.
   B. They are present between 1-7th segments.
   C. They are present lateral to the oesophagus.
   D. They pump blood from ventral to dorsal vessel.

2. Movement of the material across the cell membrane which does not requiring expenditure of metabolic energy is called__________?

   A. Active transport
   B. Passive transport
   C. Co-transport
   D. Counter transport

3. If the concentration of enzyme is kept constant and amount of substrate is increased a point is reached where increase in substrates concentration does not affect the reaction rate because of____________________?

   A. Enzymes get denatured at higher substrate conc
   B. Rate of reaction is indirectly proportional to substrate concentration at this point
   C. All the active sites on enzyme molecule are occupied
   D. None of these

4. Which of the following does not show quaternary structure____________?

   A. Haemoglobin
   B. Pepsin
   C. Fibrin
   D. Insulin

5. Cell wass of Archaeobacteria does not contain_____________________?

   A. Peptidoglycan
   B. Proteins
   C. Glycoproteins
   D. Polysaccharides

6. Bacteriochlorophylls does not include________________?

   A. Chlorophyll e
   B. Chlorophyll d
   C. Chlorophyll a
   D. Chlorophyll c

7. Blood does not clot in the blood vessels due to the presence of ___________?

   A. Thrombin
   B. Fibrinogen
   C. Heparin
   D. Prothrombin

   Submitted by: Malik Asghar Hussain

8. What does lalopathy mean?

   A. A disorder of speech
   B. A disorder of hearing
   C. A disorder of learning
   D. None of the above

   Submitted by: Naveed Tahir

9. What content does only a plant cell has___________?

   A. Cell Membrane
   B. Cell wall
   C. Cytoplasm
   D. Chromatin

   Submitted by: Nayab Idrees

10. Hyaline cartilage does not posses?

    A. Fibers
    B. Cells
    C. Laucane
    D. Blood capillaries

    Submitted by: hijab zahra