Explore topic-wise InterviewSolutions in Current Affairs.

Correct option is B) What I want to do

(d) confer resistance to antibiotics

Solar energy used by green plants for photosynthesis is only 2 – 10%.

(Hint : Dispersed phase : Gas; Dispersion medium : Solid)

[Hint : (i) Antiseptic (ii) Broad spectrum antibiotic (iii) Antimicrobial (antibacterial)]

Microbes are referred to as heterotrophs and saprotrophs. They fulfill their energy requirement by feeding on dead remains of plants and animals through the process of decomposition.

Glucose is a group of carbohydrates which is a simple sugar with a chemical formula C₆H₁₂O₆. It is made of six carbon atoms and an aldehyde group. Therefore, it is referred to as an aldohexose. It exists in two forms viz open-chain (acyclic) form or ring (cyclic) form.

Correct answer is Swollen

Correct answer is Widow

Correct option is B) theatre

Either of the following forces can be involved in holding drugs to the active sites of  enzymes.
(i) Ionic bonding
(ii) Hydrogen bonding
(iii) Dipole − dipole interaction
(iv) van der Waals force

The energy from the sun reaches the food chain through the primary producers (plants). This energy is passed on through successive trophic levels in the food chain. The energy transfer in the food chain follows the 10 percent law where in only 10% of the energy is transferred from one trophic level to the next successively. So, the movement of energy is only in one direction from lower to higher trophic level.

The energy from the sun reaches the food chain through the primary producers (plants). This energy is passed on through successive trophic levels in the food chain. The energy transfer in the food chain follows the10 percent law wherein only 10% of the energy is transferred from one trophic level to the next successively. So, the movement of energy is only in one direction from lower to higher trophic level.

(C) (A) is true but (R) is false. 

Natural rubber is linear polymer of isoprene (2- methyl-1,3-butadiene) and is also called cis -1,4- polyisoprene. The cis-polyisoprene molecules consists of various chains held together by weak Vander Waal' s interactions and has a coiled structure

Correct option is (a) Mn³⁺ 

Mn³⁺ is strong oxidizing agent because Mn³⁺ can easily be converted into Mn²⁺ having d configuration which is stable half-filled configuration.

In a chemical reation no atoms are lost. It is basically a mixture of two substances.

But in a chemical change a completely new substance with new properties is formed.

So we can say that ,Chemical Reactions lead to chemical Changes.

Correct option (1) oxidising smog
Explanation:

A/C to the fact that Oxidizing smog form when the primary pollutants are transformed through photochemical reaction into secondary pollutants the most important of which are oxidant gases, ozone and peoxyacetyl nitrate.

Taeniasis is the parasitic disease caused by the adult tapeworm installed within the human intestine.

Cysticercosis occurs when humans ingest eggs or pregnant proglottids of taenias, for example, through badly washed food or self infection. In cysticercosis humans assume the role of intermediate hosts of the parasite and the cysticerci develop within human organs like muscles, brain, eyes and subcutaneous tissue. The brain infestation by cysticerci, a condition known as neurocysticercosis, is extremely severe and may lead to death.

In the normal life cycle of taenias the humans are the definitive hosts and develop taeniasis, a less serious disease, and not cysticercosis.

Correct option (4) nitrogen oxides
Explanation:

Photochemical smog contains oxides of nitrogen

Correct option (1) NO, NO2, O3 and hydrocarbons  

Explanation:

NO, NO_2, O₃, hydrocarbon are the factors which causes smog

Correct option: (4) Oxidizing smog

Explanation:

Pollution takes places in sunlight is oxidizing smog, which is known as photochemical smog.

The body of the tapeworm is made of segments called proglottids. The proglottids are reproductive structures of the taenia and contain the organs that produce male and female gametes. 

As the proglottids become distant from the scolex (head) they mature. Mature proglottids can fecundate themselves or neighboring ones and the eggs formed are stored inside them. Proglottids called pregnant proglottids, full of eggs, detach from the body of the worm and are eliminated with the human feces.

Pregnant proglottids with taenia eggs are released together with human feces. If ingested by the intermediate hosts, swine or bovine, the eggs break inside their intestines and the larva trespass the mucosa and gains the circulation to settle on muscles, heart, brain and other organs of these animals and then differentiate into cystic larvae called cysticerci. Humans become infected when eating raw or badly cooked swine or bovine meat contaminated by cysticerci. In the human intestines the cysticerci develop into adult worms and the cycle goes on.

The intermediate hosts of Taenia solium are pigs and the intermediate hosts of Taenia saginata are cattle.

1. Distribution: They grow in almost all types of habitats (worldwide). They grow in Arctic, Antarctic area .as well as in Mediterranean area.

2. Habitat: angiosperms grow in almost every kind of habitats. Some grow at an altitude of 6,000 metres in the Himalayas. Some are found in frozen condition of Antarctica. They are found on plains, hilly areas, seas, lakes and in desert conditions. Opuntia is a xerophyte, Hydrilla, Vallisineria are submerged fresh water hydrophytes, Zostera marina found in shallow seas and some are found as mangrove vegetation in Estuary, eg. Rhizophora, Avicinia. In rain forests, some plants grow on the branches of other plants but do not obtain water or food from them, they are called epiphytes, eg. Irenda. Most of the plants are terrestrial and herbs, shrubs and trees, eg. Neem, Peepal, Mango, Wheat, and Pea etc.

3. Habit: plant of this category show diversity in their habits. Wolfia is smallest angiosperms (size: 2.00 mm), tallest angiosperm is Eucalyptus (300-400 feets). Most of the plants are grasses or herbs, shrubs, trees and climbers. Herb- Tribulus, Grass- Cyanadon, Shrub-Calotropis, Tree-Acacia (Babool), Climber- Bouganivillea etc.

4. Main plant body is sporophyte. They have well developed root system, stem system. Stem system is made up of leaves and stem.

5. Nutrition: mostly photosynthetic. Some show hetrotrophic mode of nutrition, e.g., Cuscuta and Orobranche are parasitic, Indian Pipe plant (Monotropa) saprophytic, Nehenthes and Venus fly trap (Dionaea) are insectivore in nature.

6. Anatomy: In angiosperm well developed vascular system exists. Xylem and Phloem both are made of four elements each. Xylem is made up of Tracheids, vessels, xylem parenchyma and xylem fibres. Phloem is made up of sieve tubes, companion cells, phloem parenchyma and phloem fibres. Cambium is present in dicotyledons for secondary growth.

7. Characters related with reproduction: angiosperms are flowering plants. Flower is a modified shoot with fertile leaves for sexual reproduction. Stamen is microsporophyll while pistil is macrosrporophy.

8. Male and female gametophytes are highly reduced.
9. Pollen grains are received by stigma of pistil during pollination to reach up to ovule.
10. Fertilization is siphonogamous type in which pollen tube is formed to transfer non motile male gametes up to egg cell.
11. Endosperm is triploid it forms after fertilization to provide nutrition to developing embryo.
12. In angiosperm double fertilization and triple fusion, present.
13. Seeds are protected inside fruit.
14. Seeds have one or two cotyledons.

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