A fall in glomerular filtration rate (GFR) activates:
1. Adrenal cortex to release aldosterone
2. Adrenal medulla to release adrenaline
3. Posterior pituitary to release vasopressin
4. Juxta glomerular cells, to release renin
What is the function of germ pores?
1. Absorption of water for seed germination
2. Initiation of pollen tube
3. Release of male gametes
4. The emergence of radicle
Which one of the following options gives the correct categorization of six animals according to the type of nitrogenous wastes (A, B, C) they give out?
| A AMMONOTELIC |
B UREOTELIC |
C URICOTELIC |
|
| 1. | Frog, Lizards | Aquatic Amphibia, Humans | Cockroach, Pigeon |
| 2. | Aquatic Amphibia | Frog, humans | Pigeon, Lizards, Cockroach |
| 3. | Aquatic Amphibia | Cockroach, Humans | Frog, Pigeon, Lizards |
| 4. | Pigeon, Humans | Aquatic Amphibia, Lizards | Cockroach, Frog |
| Items | Category | Exception | |
| 1. | Kangaroo, Koala, wombat |
Australian marsupials | Wombat |
| 2. | Plasmodium, Cuscuta, Trypanosoma |
Protozoan parasites | Cuscuta |
| 3. | Typhoid, Pneumonia, Diphtheria |
Bacterial diseases | Diphtheria |
| 4. | UAA, UAG, UGA | Stop codons | UAG |
Which one of the following generally acts as an antagonist to Gibberellins?
1. Ethylene
2. ABA
3. IAA
4. Zeatin
Which one of the following organisms is scientifically correctly named, correctly printed according to the International Rules of Nomenclature, and correctly described?
| 1. | Plasmodium falciparum – a protozoan pathogen causing the most serious type of malaria |
| 2. | Felis tigris – The Indian tiger, well protected in Gir forests. |
| 3. | E.Coli – Full name Entamoeba coli, a commonly occurring bacterium in the human intestine |
| 4. | Musca domestica – The common house lizard, a reptile |
Read the following four statements (I-IV):
| I. | Colostrum is recommended for the newborn because it is rich in antigen |
| II. | Chikungunya is caused by a Gram-negative bacterium |
| III. | Tissue culture has proved useful in obtaining virus-free plants |
| IV. | Beer is manufactured by distillation of fermented grape juice |
How many of the above statements are wrong?
1. Three
2. Four
3. One
4. Two
Which one of the following organisms is correctly matched with its three characteristics?
| 1. | Tomato: Twisted aestivation, Axile placentation, Berry |
| 2. | Onion: Bulb, Imbricate aestivation, Axile placentation |
| 3. | Maize: C3 pathway, Closed vascular bundles, Scutellum |
| 4. | Pea: C3 pathway, Endospermic seed, Vaxillary aestivation |
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