Competitive Exams: Zoology MCQs (Practice_Test 44 of 112)
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- The pollen basket in honeybee is located at the
- lower side of the abdomen
- tip of antenna
- tarsus of first leg
- tibia of third leg
- Consider the following statements: The most important role of folic acid in promoting growth is through
- conversion of decarboxylated pyruvic acid into acetyl C0A
- synthesis of purines and thymine essential for DNA synthesis
- calcium deposition in bones
Which of the statements given above is/are correct?
- 1 and 2 only
- 2 only
- 1 and 3 only
- 3 only
- Which one of the following sensations is not generated by impulses initiated in naked nerve endings?
- Touch
- Pain
- Cold
- Taste
- Match List-I (Organism) with List-II (Excretion) and select the correct answer using the code given below the
List-I List-II - Shark
- Lizard
- Rat
- Uric acid
- Urea
- Ammonia
- A
- B
- C
- 3
- 1
- 2
- 2
- 1
- 3
- 3
- 2
- 1
- 1
- 3
- 2
- In glycolysis, which enzyme acts on 2-phosphoglycerate to form phosphoenol pyruvate?
- Aldolase
- Enolase
- Phosphoglycerokinase
- Phosphoglyceromutase
- In the vertebrates, the hormones which control osmoregulation are
- vasopressin and thyrotropin
- aldosterone and corticotropin
- thyrotropin and corticotropin
- asopressin and aldosterone
- Which one of the following vitamins is the precursor of coenzyme A?
- Pantothenic acid
- Pyridoxamine
- Riboflavin
- Thiamine
- Nicotinic acid can be synthesized biologically from
- glutamic acid
- aspartic acid
- tyrosine
- tryptophan
- Which reference to mitochondrial Electron Transport Chain which one of the following statements is correct?
- Ubiquinone can carry two electrons and two protons simultaneously
- The electrons that each molecule of NADH contributes to the mitochondrial electron transport chain provide enough power to create two ATPs
- The contribution of FADH2 provides enough power for the production of three ATPs
- Cytochrome b and cytochrome c1 are parts of an enzyme complex known as cytochrome oxidase
- Consider the following statements
- ATP cannot be stored in the cell.
- ATP can be moved from one cell to another.
- NAD + picks up two electrons at once.
Which of the statements given above is/are correct?
- 1 only
- 2 and 3 only
- 1 and 3 only
- 1,2 and 3
- Which one of the following hormones controls gluconeogenesis?
- Thyroxine
- Insulin
- Cortisol
- Glucagon
- Dietary carotenes and carotenoids are absorbed and transported in the plasma of higher mammals by
- albumins
- globulins
- lipoproteins
- glycoproteins
- Consider the following conditions
- Enlarged thyroid
- Protruding eyeballs
- Decreased blood sugar
Which of the above is/are the symptom (s) of Graves disease?
- 1 and 2 only
- 2 only
- 1 and 3 only
- 1,2 and 3
- Consider the following statements In citric acid cycle
- The generation of ATP is done at two steps
- NAD is reduced to NADH at two steps
- FAD + is reduced to FADH2 at one step
Which of the statements given above is/are correct?
- 1 and 2 only
- 3 only
- 1 and 3 only
- 1,2 and 3
- Proteins also release the energy in our body but before that their deamination is carried out in
- spleen
- muscles
- lungs
- liver