The active principle in foxglove (Digitalis sp.) is cardinolide digitoxin  is a

a. cardiac glycoside 

b. that activate ATPase activity 

c. that inhibits ATPase activity 

d. can increase myocardial contraction

Which of the following is not true regarding digitoxin

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#Question id: 15971

#Unit 12. Applied Biology

Nutritional requirements of embryo culture is characterized by the metabolic capability of the embryo to synthesize substances required for its growth which slowly makes it independent is ___

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#Question id: 1848

#Unit 4. Cell Communication and Cell Signaling

Which of the following statements is TRUE of a peptide immunogen?

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#Question id: 13021

#Unit 10. Ecological Principles

Which marine zone would have the lowest rates of primary productivity (photosynthesis)? 

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#Question id: 10332

#Unit 9. Diversity of Life Forms

The four-chambered hearts of birds and the four-chambered hearts of mammals evolved independently of each other. If one were unaware of this independence, then one might logically conclude that

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#Question id: 771

#Unit 1. Molecules and their Interaction Relevant to Biology

MicroRNAs are:

P. synthesized as long pri-miRNAs;

Q. transcribed by RNA polymerase II;

R. synthesized from pre-microRNAs by an RNase III enzyme Drosha in the cytoplasm;

S. synthesized from pri-miRNAs by an enzyme Dicer in the nucleus.