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TLS Online TPP Program

#Question id: 11706

Antidiuretic hormone (ADH) and the renin-angiotensin-aldosterone system (RAAS) work together in maintaining osmoregulatory homeostasis through which of the following ways?

#SCPH28 | Zoology
  1. ADH regulates the osmolarity of the blood by altering renal reabsorption of water, and the RAAS maintains the osmolarity of the blood by stimulating both Na+ and water reabsorption.
  2. ADH and the RAAS work antagonistically; ADH stimulates water reabsorption during dehydration, and the RAAS causes increased excretion of water when it is in excess in body fluids.
  3. Both stimulate the adrenal gland to secrete aldosterone, which increases both blood volume and pressure via its receptors in the urinary bladder.
  4. ADH and the RAAS combine at the receptor sites of proximal tubule cells, where reabsorption of essential nutrients takes place.
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TLS Online TPP Program

#Question id: 16496

#SCPH28 | Zoology

Neomycin phosphotransferase  gene is used as a selectable marker. It provides resistence against which antibiotic ?
TLS Online TPP Program

#Question id: 1713

#SCPH01 Biochemistry

The paracortical area of a lymph node comprises mainly:
TLS Online TPP Program

#Question id: 6964

#I Life Science/ Life Sciences Group – I-V

If embryos are disaggregated with chemicals or proteases, and the individual cells are mixed together in culture, what will happen?
TLS Online TPP Program

#Question id: 9182

#SCPH06 I Botany

Imagine that a deep temperate zone lake did not turn over during the spring and fall seasons. Based on the physical and biological properties of limnetic ecosystems, what would be the difference from normal seasonal turnover?
TLS Online TPP Program

#Question id: 11956

#I Life Science/ Life Sciences Group – I-V

An advantage of a complete digestive system over a gastrovascular cavity is that the complete system ________.