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TLS Online TPP Program

#Question id: 134

Ultraviolet (UV) light can be used to estimate protein solution concentrations because

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. phenylalanine absorbs at 260 nm.

  2. all the amino acids absorb UV light.

  3. aromatic amino acids absorb at 280 nm.

  4. tryptophan and tyrosine absorb at 280 nm.

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TLS Online TPP Program

#Question id: 2346

#Unit 2. Cellular Organization

The removal of waste products from the amoeba is an example of
TLS Online TPP Program

#Question id: 2347

#Unit 2. Cellular Organization

Diffusion of molecules across biological membranes that requires channels is called
TLS Online TPP Program

#Question id: 2348

#Unit 2. Cellular Organization

The sodium-potassium pump functions to
TLS Online TPP Program

#Question id: 2349

#Unit 2. Cellular Organization

A liver cell would detect the presence of insulin by
TLS Online TPP Program

#Question id: 2350

#Unit 2. Cellular Organization

The maximum size of cells is _____
TLS Online TPP Program

#Question id: 2351

#Unit 2. Cellular Organization

A ______ electron microscope provides a three-dimensional view of the surface of an object.