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TLS Online TPP Program

#Question id: 3327

Birds that are brood parasites lay eggs in the nests of other birds. This is a successful strategy for the parasite only if

#Unit 11. Evolution and Behavior

  1. the host bird and the brood parasite bird species are similar in size

  2. the parasite removes all the host eggs

  3. host birds cannot discriminate between their eggs and those of the parasite

  4. the parasite chicks are much smaller than those of the host bird species

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TLS Online TPP Program

#Question id: 12698

#Unit 7. System Physiology – Animal

The following test results were obtained: urine flow rate = 2.0 ml/min; urine inulin concentration = 60 mg/ml; plasma inulin concentration = 2 mg/ml; urine potassium concentration = 20 μmol/ml; plasma potassium concentration = 4.0 μmol/ml; urine osmolarity = 150 mOsm/L; and plasma osmolarity = 300 mOsm/L. What is the net potassium reabsorption rate?
TLS Online TPP Program

#Question id: 59

#Unit 1. Molecules and their Interaction Relevant to Biology

Nitrogen (N) normally forms three covalent bonds with a valence of five. However, ammonium has four covalent bonds, each to a different hydrogen (H) atom (H has a valence of one). What do you predict to be the charge on ammonium?
TLS Online TPP Program

#Question id: 11494

#Unit 2. Cellular Organization

How do aquaporins allow the passage of H2O but not H3O+?
TLS Online TPP Program

#Question id: 33383

#Unit 1. Molecules and their Interaction Relevant to Biology

What is the length of a polypeptide with 80 amino acid residues in a single contiguous helix?
TLS Online TPP Program

#Question id: 27509

#Unit 2. Cellular Organization

Which of the following Protein facilitate nucleosome assembly over the covalently close circular DNA (cccDNA)