NEET Test 176

Phytoalexins are phenolic compounds produce in the host cell for defense in response to fungal infection. These chemicals inhibit the growth of the parasite by disturbing the metabolism or normal development of larva or reducing the digestibility of plants.

The cell wall is absent in Mycoplasma.

Mycoplasma is a genus of bacteria lacking a cell wall around its cell membrane. This property makes them naturally resistant to all the antibiotics which target cell wall synthesis. Mycoplasma can be parasitic or saprotrophic. Bacteria are unicellular microscopic organisms that can be found in a diverse environmental state. Sometimes bacteria can be helpful like curding milk and digestion of food in the human gut. Plants are multicellular eukaryotes of the kingdom Plantae. Funaria is a genus of moss. Funeria hygrometrica is the most common species which is called cord moss because of the twisted seta. The name funeral is derived from the Latin word 'funis' means a rope.

Here as the energy is supplied to the system by an external source, therefore there will be no change of internal energy. The change in heat will generate equivalent work.

Hydrogen peroxide is the simplest kind of peroxide available (oxygen-oxygen single bond). It is a colourless liquid and is used in an aqueous solution for safety reasons. It acts as a bleaching agent and is also used as a disinfectant. Concentrated hydrogen peroxide is a very reactive oxygen species and is used as a propellant in rocketry. The chemical formula for hydrogen peroxide is H₂O₂.

After ovulation, the pituitary hormones FSH and LH cause the remaining parts of the dominant follicle to transform into the corpus luteum, which produces progesterone. The increased progesterone in the adrenals starts to induce the production of estrogen. The hormones produced by the corpus luteum also suppress production of the FSH and LH that the corpus luteum needs to maintain itself. Consequently, the level of FSH and LH fall quickly over time, and the corpus luteum subsequently atrophies. Falling levels of progesterone trigger menstruation and the beginning of the next cycle.

Adipose Tissue is a loose connective tissue composed of adipocytes. It is technically composed of roughly only 80% fat. Its main role is to store energy in the form of lipids, although it also cushions and insulates the body.

Given,

KE₁ = 50J

KE₂ = 150J

t = 10s

As we know,

The work-energy theorem states that the net work done by the forces on an object is equal to the change in its kinetic energy.

W = ΔKE

Where W= work done and ΔKE = change in kinetic energy

By the work-energy theorem,

W = ΔKE

∴ W = KE₂ − KE₁

⇒ W = 150 − 50

⇒ W = 100J

So, the power of the body (P) = W/t

Where W = work and t = time

∴ P = 100/10

⇒ P = 10W

The Plasmodium species during malarial formation, metabolize hemoglobin and other RBC proteins to create a toxic pigment called hemozoin. Haemozoin is a waste product formed when the parasite digests the blood. The parasite digests the hemoglobin of the blood and release high quantities of free heme. This heme released is a non-protein component of hemoglobin. The haemozoin is, therefore, a product of the erythrocyte lysis released from the food vacuole into circulation.

The velocity-time graph of a moving train is depicted in the question figure. The average velocity during time OD was 30 m/s by the formula,