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Biology

General

Easy

Question

Porphyrin is made up of how many pyrrole ring?

One
Two
Three
Four

The correct answer is: Four

Four pyrrole ring. Chlorophyll-a

Related Questions to study

What happens to $C subscript 4 end subscript$ acid in the bundle sheath cells?

What happens to $C subscript 4 end subscript$ acid in the bundle sheath cells?

Living organisms have the capability of extracting energy from

Living organisms have the capability of extracting energy from

Compensation point refers to

Compensation point refers to

parallel

Who proved that oxygen evolved in photosynthesis comes from water?

Who proved that oxygen evolved in photosynthesis comes from water?

The form of pigment which promotes germination is

The form of pigment which promotes germination is

In $C subscript 3 end subscript$ plants, the first stable product of photosynthesis during dark reaction is

In $C subscript 3 end subscript$ plants, the first stable product of photosynthesis during dark reaction is

parallel

Maximum number of chloroplast are found in

Maximum number of chloroplast are found in

Red light favours the …A… accumulation. Blue light favours the …B… accumulation
Here A and B refer to

Red light favours the …A… accumulation. Blue light favours the …B… accumulation
Here A and B refer to

The velocity-time graph of a particle in linear motion is shown. Both $v$ and $t$ are in SI units. What is the displacement of the particle from the origin after 8 s?

The velocity-time graph of a particle in linear motion is shown. Both $v$ and $t$ are in SI units. What is the displacement of the particle from the origin after 8 s?
Physics-General

parallel

A body of mass $m$ moving along a straight line covers half the distance with a speed of $2 m s to the power of negative 1 end exponent.$ The remaining half of distance is covered in two equal time intervals with a speed of $3 blank m s to the power of negative 1 end exponent a n d blank 5 blank m s to the power of negative 1 end exponent$ respectively. The average speed of the particle for the entire journey is

A body of mass $m$ moving along a straight line covers half the distance with a speed of $2 m s to the power of negative 1 end exponent.$ The remaining half of distance is covered in two equal time intervals with a speed of $3 blank m s to the power of negative 1 end exponent a n d blank 5 blank m s to the power of negative 1 end exponent$ respectively. The average speed of the particle for the entire journey is

Physics-General

The relation $3 t equals square root of 3 x end root plus 6$ describes the displacement of a particle in one direction where $x blank$ is in $m e t r e s$ and $t$ in sec. The displacement, when velocity is zero, is

The relation $3 t equals square root of 3 x end root plus 6$ describes the displacement of a particle in one direction where $x blank$ is in $m e t r e s$ and $t$ in sec. The displacement, when velocity is zero, is

Physics-General

A stone dropped from a building of height $h$ and it reaches after $t$ seconds on earth. From the same building if two stones are thrown (one upwards and other downwards) with the same velocity $u$ and they reach the earth surface after $t subscript 1 end subscript$ and $t subscript 2 end subscript$ seconds respectively, then

A stone dropped from a building of height $h$ and it reaches after $t$ seconds on earth. From the same building if two stones are thrown (one upwards and other downwards) with the same velocity $u$ and they reach the earth surface after $t subscript 1 end subscript$ and $t subscript 2 end subscript$ seconds respectively, then

Physics-General

parallel

A man throws a ball vertically upward and it rises through $20 blank m$ and returns to his hands. What was the initial velocity ( $u$ ) of the ball and for how much time ( $T$ ) it remained in the air $left square bracket g equals 10 m divided by s to the power of 2 end exponent right square bracket$

A man throws a ball vertically upward and it rises through $20 blank m$ and returns to his hands. What was the initial velocity ( $u$ ) of the ball and for how much time ( $T$ ) it remained in the air $left square bracket g equals 10 m divided by s to the power of 2 end exponent right square bracket$

Physics-General

The motion of a particle is described by the equation $x equals a plus b t to the power of 2 end exponent$ where $a equals 15 blank c m$ and $b equals 3 blank c m divided by s to the power of 2 end exponent$ .Its instantaneous velocity at time $3 blank s e c$ will be

The motion of a particle is described by the equation $x equals a plus b t to the power of 2 end exponent$ where $a equals 15 blank c m$ and $b equals 3 blank c m divided by s to the power of 2 end exponent$ .Its instantaneous velocity at time $3 blank s e c$ will be

Physics-General

A body thrown vertically upwards with an initial velocity $u$ reaches maximum height in 6 seconds. The ratio of the distances travelled by the body in the first second and the seventh second is

A body thrown vertically upwards with an initial velocity $u$ reaches maximum height in 6 seconds. The ratio of the distances travelled by the body in the first second and the seventh second is

Physics-General

parallel

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