TLS Online TPP Program

#Question id: 11675


Processing of filtrate in the proximal and distal tubules:

#I Life Science/ Life Sciences Group – I-V
  1. achieves the conversion of toxic ammonia to less toxic urea
  2. maintains homeostasis of pH in body fluids
  3. regulates the speed of blood flow through the nephrons
  4. reabsorbs urea to maintain osmotic balance
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TLS Online TPP Program

#Question id: 12961

#SCPH06 I Botany

Refer to the following experiment, which is designed to test the co evolutionary relationships among an unpalatable butterfly (the  monarch),  a  palatable  butterfly  (the  viceroy),  and  a  butterfly  predator  (the  jay).  Monarch butterflies are reared on three diets: milkweed (their natural food), cabbage, and cabbage treated with an extract from milkweed leaves. Viceroy butterflies, mimics of monarchs, also are reared on three diets: willows (their natural food), cabbage, and cabbage treated with an extract from milkweed leaves. In trial 1 of the first experiment, adult butterflies reared on a particular diet are presented one at a  time  at  1-hour  intervals  to  jays  and  the  jays  are  allowed  to  feed.  Each jay is  fed  until  it refuses to eat the butterfly presented, but no more than 12 butterflies are presented to a jay during a particular test. Five birds are used for each test; therefore, up to 60 butterflies can be consumed for each diet test. The observer records the actual number of butterflies  eaten. In trial 2, the experiment is repeated 2 weeks later. In the second experiment, the butterflies are reared on the same diets as in experiment 1. However, when they are offered to jays, some jays receive a monarch  reared  on  milkweed  before  being  offered  the  butterflies  reared  on  the  experimental  diets;  the  other  group  of jays is  first given a viceroy reared on willow before being  offered the butterflies reared on the experimental diets. The initial butterfly offered is included in the total number eaten, but no more than 12 butterflies are presented to each jay.

The data in the table indicate which of the following?

TLS Online TPP Program

#Question id: 19368

#SCPH06 I Botany

Second phase genetic engineering is done for production of
1. Insulin
2. Abiotic or biotic stress crop
3. Resistant/tolerant plants
Which of the above are correct?

TLS Online TPP Program

#Question id: 1292

#SCPH06 I Botany

Heparan sulfate, an example of a(n) _____________, aids in the activation of ____________.

TLS Online TPP Program

#Question id: 3035

#SCPH28 | Zoology

The equation used to obtain bacterial population by binary fission is

TLS Online TPP Program

#Question id: 10167

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

Mechanisms of C4 acid transported mesophyll → bundle sheath for decarboxylation, which of the following CORRECT combination of decarboxylation process?

a.) NADP–malic enzyme (NADP–ME)→ transport Malate from mesophyll to bundle sheath

b.) NAD–malic enzyme (NAD–ME)→ transport Aspartate from mesophyll to bundle sheath

c.) PEP carboxykinase (PEPCK)→ transport Aspartate from mesophyll to bundle sheath

d.) PEP carboxylase (PEPCase)→ transport Malate from mesophyll to bundle sheath