TLS Online TPP Program

#Question id: 7115


The ability of the sea urchin embryo to regulate its development illustrates the fact that there are maternally-determined differences along the animal-vegetal axis that are necessary for normal development. Which of the following statements about regulation in sea urchin embryos is consistent with that fact?

#Unit 5. Developmental Biology
  1. Up until the hatching of the embryo as a pluteus larva, any blastomere can be separated from the others and will regulate to go on and develop into a fully formed and full-sized larva.
  2. Up until the hatching of the embryo as a pluteus larva, any blastomere can be separated from the others and will regulate to go on and develop into a fully formed, yet smaller, larva.
  3. Blastomeres from the animal or vegetal poles of the embryo can be isolated and will go on to form an embryo, as long as either an animal or vegetal pole is included.
  4. Blastomeres at the 4-cell stage each still possesses a portion of the original animal-vegetal axis, and if isolated will go on to form a fully formed, yet smaller, larva.
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TLS Online TPP Program

#Question id: 10313

#Unit 6. System Physiology – Plant

Which of the following enzyme are found in the inner membrane of mitochondria?

TLS Online TPP Program

#Question id: 10314

#Unit 6. System Physiology – Plant

How many redox reaction and decarboxylation reaction participate in Kreb’s cycle?

TLS Online TPP Program

#Question id: 10315

#Unit 6. System Physiology – Plant

One of the enzyme of citric acid cycle known as isocitrate dehydrogenase, some of the characterictics are given below;

a) Isocitrate dehydrogenase is found in both cytosol as well as in mitochondria

b) Isocitrate is oxidized by hydride transfer to NAD+ or NADP+ depending on the location whether IDH present in cytosol or mitochondria

c) Isocitrate dehydrogenase forms oncometabolites such as 2-Oxoglutarate

d) Isocitrate dehydrogenase also participate in Glyoxylate cycle

Which of the following characteristics of isocitrate dehydrogenase is incorrect?

TLS Online TPP Program

#Question id: 10316

#Unit 6. System Physiology – Plant

Succinate dehydrogenase an enzyme is inhibited by  Malonate and Oxaloacetate, which of the following graph represents the correct competitve inhibition  of enzyme with these inhibitors?   

TLS Online TPP Program

#Question id: 10317

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following are receptors for cholera toxin?

TLS Online TPP Program

#Question id: 10318

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following phospholipase generates lysophospholipids?