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Which international agreement aims to reduce greenhouse gas emissions to combat global warming?

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Important Questions on Systems of Particles and Rotational Motion

EASY
Physics>Mechanics>Systems of Particles and Rotational Motion>Equilibrium of a Rigid Body
Which compound has both covalent as well as co-ordinate bonds?
EASY
Physics>Mechanics>Systems of Particles and Rotational Motion>Equilibrium of a Rigid Body
In a physical balance working on the principle of moments, when 5 mg weight is placed on the left pan, the beam becomes horizontal. Both the empty pans of the balance are of equal mass. Which of the following statements is correct?
EASY
Physics>Mechanics>Systems of Particles and Rotational Motion>Equilibrium of a Rigid Body
Two spherical black bodies have radii r1 and r 2. Their surface temperatures are T1 and T 2. If they radiate same power then r2r1 is
MEDIUM
Physics>Mechanics>Systems of Particles and Rotational Motion>Equilibrium of a Rigid Body
Draw a well-labeled diagram showing the ultra-structure of the chloroplast.
EASY
Physics>Mechanics>Systems of Particles and Rotational Motion>Equilibrium of a Rigid Body
Unit of photosynthesis is
MEDIUM
Physics>Mechanics>Systems of Particles and Rotational Motion>Equilibrium of a Rigid Body

3CO2+9 ATP+6 NADPH+Water→glyceraldehyde3-phosphate+9 ADP+6 NADP++8Pi

Where in the chloroplast does this process occur?

EASY
Physics>Mechanics>Systems of Particles and Rotational Motion>Equilibrium of a Rigid Body
Oxygenic photosynthesis occurs in:
MEDIUM
Physics>Mechanics>Systems of Particles and Rotational Motion>Equilibrium of a Rigid Body
Draw well-labelled diagram of ultrastructure of chloroplast.
HARD
Physics>Mechanics>Systems of Particles and Rotational Motion>Equilibrium of a Rigid Body
Refer to the given diagrammatic representation of an electron micrograph of a section of chloroplast and answer the question.
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Select the option which correctly depicts the functions of parts X, Y and Z .
EASY
Physics>Mechanics>Systems of Particles and Rotational Motion>Equilibrium of a Rigid Body

Examine the figure

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Can these be passed on to the progeny? How?

MEDIUM
Physics>Mechanics>Systems of Particles and Rotational Motion>Equilibrium of a Rigid Body

Examine the figure

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Name the metabolic processes taking place in the places marked 1 and 2.

EASY
Physics>Mechanics>Systems of Particles and Rotational Motion>Equilibrium of a Rigid Body
Draw a labelled diagram of chloroplast.
EASY
Physics>Mechanics>Systems of Particles and Rotational Motion>Equilibrium of a Rigid Body

Choose correct option

A cell that lacks chloroplast does not

MEDIUM
Physics>Mechanics>Systems of Particles and Rotational Motion>Equilibrium of a Rigid Body
Give a brief description of the structure of chloroplast.
EASY
Physics>Mechanics>Systems of Particles and Rotational Motion>Equilibrium of a Rigid Body
Photosynthetic pigments in chloroplast are embedded in membrane of
EASY
Physics>Mechanics>Systems of Particles and Rotational Motion>Equilibrium of a Rigid Body
During high light intensity, the chloroplasts align themselves
EASY
Physics>Mechanics>Systems of Particles and Rotational Motion>Equilibrium of a Rigid Body

Examine the figure

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Is this structure present in animal cell or plant cell?

EASY
Physics>Mechanics>Systems of Particles and Rotational Motion>Equilibrium of a Rigid Body
Where in the plant cell, the synthesis of sugar molecule takes place, whether in 'stroma of chloroplast' or 'grana of chloroplast'?
HARD
Physics>Mechanics>Systems of Particles and Rotational Motion>Equilibrium of a Rigid Body
Where is NADP reductase enzyme located in the chloroplast? What is the role of this enzyme in proton gradient development?
MEDIUM
Physics>Mechanics>Systems of Particles and Rotational Motion>Equilibrium of a Rigid Body
A granum is made up of