Plant Pathology - Study Mode

[#816] Match the following columns: Column I (Fertilisers) Column II (P 2 O 5 content %) a. SSP 1. 40 - 48 b. TSP 2. 16 - 20 c. DAP 3. 20 - 30 d. Rock phosphate 4. 54
Correct Answer

(A) a-2, b-1, c-4, d-3

Explanation

Solution: SSP (Single Super Phosphate) is the most popular phosphatic fertilizer. The percentage of P 2 O 5 is approximately 16 - 20% in SSP. TSP (Triple Super Phosphate), is a chemical fertilizer with a P 2 O 5 content of over 40 - 48%. DAP (Diammonium Phosphate) is a widely used phosphate-based fertilizer with a phosphorus content of 54%. Rock phosphate is the phosphorite, is mined from clay deposits that contain phosphorus and is used to make organic phosphate fertilizers that many gardeners utilize. It contains 20 - 30% of P 2 O 5 .

[#817] Chemical pesticide present in Baygon is
Correct Answer

(C) Propoxur

Explanation

Solution: The chemical pesticide present in Baygon is Propoxur. Baygon is a pesticide brand produced by S. C. Johnson & Son. It is an insecticide used for the extermination and control of household pests such as crickets, roaches, ants, carpenter ants, spiders, silverfish and mosquitoes. Baygon products contain the pyrethroids cyfluthrin, transfluthrin, cypermethrin, prallethrin, and the carbamate propoxur and organophosphorus chlorpyrifos, as active ingredients.

[#818] Sterilization in autoclave is done at 121.7°C for 15 mins at pressure of
Correct Answer

(D) 15 psi

Explanation

Solution: Sterilization in an autoclave is done at 121.7°C for 15 mins at a pressure of 15 psi. An autoclave is a machine used to carry out industrial and scientific processes requiring elevated temperature and pressure about ambient pressure and/or temperature. Autoclaves are used before surgical procedures to perform sterilization and in the chemical industry. Many autoclaves are used to sterilize equipment and supplies by subjecting them to pressurized saturated steam at 121°C (250°F) for around 30 - 60 minutes at a pressure of 15 psi depending on the size of the load and the contents.

[#819] Enzyme pair common to both EMP and C 3 cycle is
Correct Answer

(B) Aldolase and triose phosphate isomerase

Explanation

Solution: Enzyme pair common to both EMP and C 3 cycle is Aldolase and triose phosphate isomerase. The TPI1 gene provides instructions for making an enzyme called triose phosphate isomerase 1. This enzyme is involved in a critical energy-producing process known as glycolysis. Aldolase is one of the nonregulated enzymes comprising the Calvin cycle and is predicted to have the potential to control photosynthetic carbon flux through the cycle.

[#820] In an experiment called Ash analysis the P cant material is strongly heated in the presence of oxygen. The residue contains oxides carbonates of about
Correct Answer

(B) Ten elements

Explanation

Solution: In an experiment called Ash analysis the P cant material is strongly heated in the presence of oxygen. The residue contains oxides carbonates of about Ten elements. Ashing is a gravimetric analysis, in which the final (ashed) weight is compared to the original weight of the sample. The ash content of foods can then be expressed on either a wet weight (as is) or a dry weight basis.