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TLS Online TPP Program

#Question id: 2121

Which of the following membrane activities requires energy from ATP hydrolysis?

#Unit 2. Cellular Organization

  1. facilitated diffusion of chloride ions across the membrane through a chloride channel

  2. movement of Na+ ions from a lower concentration in a mammalian cell to a higher concentration in the extracellular fluid

  3. movement of glucose molecules into a bacterial cell from a medium containing a higher concentration of glucose than inside the cell

  4. movement of carbon dioxide out of a paramecium

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TLS Online TPP Program

#Question id: 12253

#Unit 10. Ecological Principles

Both males and females of a fish species show variation in colour. A population of this species consists of 40% blue females, 20% red females, 20% blue males and 20% red males. A researcher catches one fish at random from this population. Given that a male fish is caught, the   probability that it is blue is (Use decimal notation, not fractions or percentage)
TLS Online TPP Program

#Question id: 30066

#Unit 7. System Physiology – Animal

When the cholinergic vagal fibers to nodal tissue are stimulated, Membrane becomes:
TLS Online TPP Program

#Question id: 10839

#Unit 10. Ecological Principles

Which of the following statements about plants and herbivores is true?
TLS Online TPP Program

#Question id: 14727

#Unit 13. Methods in Biology

Two persons A and B have respectively n + 1 and n coins, which they toss simultaneously. Then the probability that A will have more heads than B is
TLS Online TPP Program

#Question id: 10639

#Unit 10. Ecological Principles

The schematic below shows the relationship between survivorship with age (relative to maximum lifespan) in Species 1 (dashed line) and Species 2 (solid line). Which of the following inferences is compatible with this figure?

 


A) Species 1 follow type I survival ship curve

 B) Species 2 follow type III survival ship curve

 C) Species 1 show parental care of offspring

 D) Species 2 showed large size of offspring than species 1