Cell walls of prokaryotes, fungi, algae, and plants differ from each other in chemical composition and molecular structure, yet they all serve three common functions:

a) regulating cell volume

b) determining cell shape

c) mechanically protecting the delicate protoplast against biochemical and physical assaults

d) used to make synthetic fibers

Which of the following common functions is correct?

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#Question id: 2031

#Unit 4. Cell Communication and Cell Signaling

Antigen binding sites of an immunoglobulin are located in

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#Question id: 443

#Unit 1. Molecules and their Interaction Relevant to Biology

The free energy for ATP hydrolysis in vivo is actually greater than the standard free energy change of -30 kJ mol-1 because

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#Question id: 19828

#Unit 12. Applied Biology

Accumulation of phytoalexins at the site of infection is followed by

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#Question id: 10711

#Unit 10. Ecological Principles

Following table shows the number of individuals of five tree species in a community

Based on the above, the Simpson’s index and Shannon weaver of the community will be respectively?

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#Question id: 23783

#Unit 7. System Physiology – Animal

Retinal is parallel to the surface of the membrane and is attached to a