Membrane proteins may interact with biomembranes through

a. covalently attached fatty acid molecules.

b. covalently attached lipid molecules.

c. noncovalent protein-protein interactions.

d. hydrophobic α-helical domains.

e. noncovalent protein-lipid interactions.

TLS Online TPP Program

#Question id: 10910

#Unit 6. System Physiology – Plant

In early research on phloem translocation, both active and passive mechanisms were considered. All theories, both active and passive, assume an energy requirement in both sources and sinks. What will be the INCORRECT explanation of active and passive mechanism?

TLS Online TPP Program

#Question id: 11602

#Unit 6. System Physiology – Plant

The concentration of gibberellins in plants is very low usually 1–10 parts per billion for the _____A_________ in _______B________ and up to 1 part per million of total gibberellins in ______C________.

TLS Online TPP Program

#Question id: 1362

#Unit 4. Cell Communication and Cell Signaling

That cancer cells often lack the gap junctions common to non-malignant cells of the same type is evidence that

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#Question id: 31338

#Unit 2. Cellular Organization

short- interspersed nuclear elements (SINEs) are derived from 

TLS Online TPP Program

#Question id: 1367

#Unit 4. Cell Communication and Cell Signaling

Match the following junctions (column A) with their intracellular adaptors (column B).

Column A	Column B
A. Adherens junctions	I. Plectin, dystonin
B. Desmosomes	II. ZO-1,2,3
C. Hemidesmosomes	III. Catenins, vinculin
D. Gap junctions	IV. Plakoglobin, plakophilins