OSSSC TGT Science CBZ Mock Test - 1 - OTET MCQ

Useful strategies for teaching students with mental retardation include the following:

• Teach one concept or activity component at a time
• Teach one step at a time to help support memorisation and sequencing
• Teach students in small groups, or one-on-one if possible
• Always provide multiple opportunities to practice skills in a number of different settings
• Use physical and verbal prompting to guide correct responses, and provide specific verbal praise to reinforce these responses

Intelligence consists of learnable skills, and could be increased at any age. It is not permanent. 

The term 'Curriculum' within the field of education refers to the overall program of the varsity which students experience on a day-to-day basis. It is a planned sequence of instruction in terms of educator's and school's instructional goals. as a gaggle of learning goals. It is attached across grades that outline the intended mathematics content and process goals at particular points in time throughout the K–12 school program.
Hence, the correct answer is, 'Overall programme of the school which students experience on a day-to-day basis.'

Gifted students have some advanced mental potential as compared with other children. Hence, they should be asked to spend more time on questions dealing with creating so that their extraordinary abilities can be channelled into discovering new ways to solve a problem.
Hence, this is the correct answer.

Different structures develop in different phases of growth as well as in response to environment. The ability to change under the influence of internal or external stimuli is called plasticity.

Photosynthesis is a redox reaction in which carbon dioxide is reduced to sugars in dark reaction and water is oxidised to release oxygen in light reaction of photosynthesis. C¹⁴ label was used to trace the path of carbon in the dark reaction in C³ plants by Calvin, Benson and Basham. The O¹⁸ label was used by Rumen and Kamen to experimentally prove that the source of oxygen released during light reaction of photosynthesis is water.

The specific term "mycorrhizal roots" would more accurately describe the symbiotic relationship rather than the physical form of the roots, and gymnosperms like Pinus generally start with a tap root system, which may not perfectly capture the essence of the mycorrhizal association but aligns more closely with the root structure potentially involved in such symbiosis.

J. Priestley (1772) carried out very interesting experiment on Bell jar, rat, pudina or mint and candle. He came to conclude that plants purify air (burning of candles), and gaseous exchange occurs during photosynthesis.

Priestley observed that a candle burning in a closed space – a bell jar, soon gets extinguished. Similarly, a mouse would soon suffocate in a closed space. He concluded that a burning candle or an animal that breathe the air, both somehow, damage the air. But when he placed a mint plant in the same bell jar, he found that the mouse stayed alive and the candle continued to burn. Priestley hypothesized as follows: Plants restore the air which breathing animals and burning candles remove.

• Light energy is mainly used in photosynthesis for activation of chlorophyll.
• Chlorophyll is in an inactive state. It becomes active only in the presence of sunlight.
• These rays fall on chloroplast which in turn activates the chlorophyll.

• In the photorespiratory pathway, there is no synthesis of ATP or NADPH. Therefore, photorespiration is a wasteful process.
• In C₄ plants photorespiration does not occur. This is because they have a mechanism that increases the concentration of CO₂ at the enzyme site.

Excitation of electrons, transfer to another accepter, and finally down-hill to NADP⁺ causing it to be reduced to NADPH⁺ H⁺ is called the Z scheme.

The plant hormone auxin is used for agriculture and horticulture.

• During the process of plant propagation, auxin is used to initiate rooting in stem cutting.
• Auxin performs the role of promoting flowering in the plant.
• Abscission of older mature fruits and leaves is regulated by the hormone auxin.
• It also prevents leaves and fruits from dropping at the early stage. The growing apical buds in most higher plants inhibit the growth of auxiliary buds. This phenomenon is called apical dominance.

Therefore, the correct answer is option D.

Growth is the permanent and irreversible increase in dry weight, size, mass, volume of cells, organs or organism is called growth.

In kreb cycle only one compound consists of 5 carbon atoms it is α –Ketoglutaric acid .

In gymnosperms, male and female cones are formed that produce male and female gametes. So, cone of gymnosperms represents thereproductive organs.

Bryophytes are called as amphibians of plant kingdom as bryophytes can grow in both land andwater. Water is essential for completion of life cycle. So, they are called amphibians of plant kingdom.

Photosynthesis occurs in two stages, light reaction, and dark reaction. During the light reaction reduced NADPH2 and ATP are synthesized. These products are used subsequently to reduce carbon dioxide into sugars. The purpose of ATP in photosynthesis is to transfer energy from light reaction to dark reaction. The purpose of NADP is to transfer hydrogen from light reaction to dark reaction in the form of reduced NADPH_2.

Nicotinamide adenine dinucleotide phosphate, abbreviated NADP⁺ or, in older notation, TPN, is a cofactor used in anabolic reactions, such as lipid and nucleic acid synthesis, which require NADPH as a reducing agent. It is the coenzyme - II

Diatoms are are very important photosynthesizers. About half of all the organic matter synthesized in the world is believed to be produced by them. Diatoms are probably the most numerous of all plants like protists. Because of this abundance, they are one of the most important primary producers of the sea. There are about 5,500 species of diatoms, mainly marine.The diatoms constitute an important phytoplankton component of the oceans.

TCA or Tricarboxylic Acid Cycle or Krebs cycle oxidizes the compounds like acetyl-CoA obtained from carbohydrates, fats and proteins and leads to the production of carbon dioxide and energy in form of ATP.

The nucleolar chromatin contains the gene for rRNA and ribonucleoprotein. The nucleolus is the largest structure present in the nucleus of eukaryotic cells where it primarily serves as the site of ribosome synthesis and assembly. Nucleoli also have other important functions like the assembly of signal recognition particles and playing a role in the cell's response to stress. Nucleoli are made of proteins and RNA and form around specific chromosomal regions.

Mons pubis is the anterior most portion of the external genitalia of human females which is fatty area covered with the skin and pubic hair.

Si,P,C,N

Electronegativity increases along a period and decreases down the group.Nitrogen is expected to have maximum electronegativity.

When HCl is added to iron filling then chlorine of HCl reacts with iron by evolving hydrogen gas. The iron dissolves, releasing hydrogen and making an iron chloride solution.

Fe + 2HCl → FeCl₂ + H₂ or

2Fe + 6HCl → 2FeCl₃ + 3H₂

-FeCl₂ is a greenish solution.

The density of ice at its melting point is less than density of water. Ice have less density than water, that is why ice float on water.

The characteristics of particles of matter are as follows:

1. Particles of matter have space between them

When we dissolve salt in water, it is observed that the particles of salt get evenly distributed in water. Also, it is observed that the presence of salt particles did not change the level of water in the beaker. This could be possible only if the particles of salt were accommodated in between the water particles. Thus, this clearly proves that space exists between water particles.

2. Particles of matter are in continuous motion

We know that there is a lot of space present between the particles of matter. Particles of matter are never at rest and keep moving continuously in these free spaces. The particles of matter move continuously and their speed increases with an increase in temperature.

3. Particles of matter attract each other

The particles of matter attract each other. However, this force of attraction varies from matter to matter.

Water boils at 100ºC at atmospheric pressure. This is the temperature at which the liquid rapidly changes into a gas.

The brown ring test for nitrates depend on the ability of Fe²⁺ to reduce nitrates to nitric oxide, which reacts with Fe²⁺ to form a brown coloured complex.

Moving from right to left the periodic table metallic character increases and if metallic character increase atomic size will also increase as a result atomic radii increase.