Write a and b in the given flow chart of neuron through which information travels as an electrical impulse.Dendrite → a →b → End point of Neuron -Science

Write a and b in the given flow chart of neuron through which information travels as an electrical impulse.Dendrite → a →b → End point of Neuron -Science
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Answer :

a. Axon b. Cell body
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The correct route through which pulse-making impulse travels in the heart is (a) SA node → Purkinje fibres → bundle of His → AV node → heart muscles (b) SA node → AV node → bundle of His → Purkinje fibres → heart muscles(c) AV node → bundle of His → SA node → Purkinje fibres → heart muscles (d) AV node → SA node → Purkinje fibres → bundle of His → heart muscles.

Description : The correct route through which pulse-making impulse travels in the heart is (a) SA node → Purkinje fibres → bundle of His → AV node → heart muscles (b) SA node → AV node → bundle of His → Purkinje ... fibres → heart muscles (d) AV node → SA node → Purkinje fibres → bundle of His → heart muscles.

Last Answer : (b) SA node → AV node → bundle of His → Purkinje fibres → heart muscles

The junction between the axon of one neuron and the dendrite of the next is called (a) constant bridge (b) junction point (c) a joint (d) a synapse.

Description : The junction between the axon of one neuron and the dendrite of the next is called (a) constant bridge (b) junction point (c) a joint (d) a synapse.

Last Answer : d) a synapse.

The fundamental structural and functional unit of nerves system is a. axon b. dendrite c. cell body d. neuron

Description : The fundamental structural and functional unit of nerves system is a. axon b. dendrite c. cell body d. neuron

Last Answer : neuron

Which of the following are NOT part of a neuron? a) synapse b) axon c) Nissl bodies d) dendrite

Description : Which of the following are NOT part of a neuron? a) synapse b) axon c) Nissl bodies d) dendrite

Last Answer : ANSWER: A -- SYNAPSE

When the electric impulse travels along the axon and reaches the other end called the synaptic terminal, this impulse triggers the release of – (1) Vesicles (2) Cleft (3) Mitochondria (4) All of the above

Description : When the electric impulse travels along the axon and reaches the other end called the synaptic terminal, this impulse triggers the release of – (1) Vesicles (2) Cleft (3) Mitochondria (4) All of the above

Last Answer : (1) Vesicles Explanation: The electrical impulses stimulate the release of vesicles. These store various neurotransmitters that are released at the synapse. Vesicles are essential for propagating nerve impulses between neurons and are constantly recreated by the cell.

Type of synapse in which transmission of impulse across neuron is similar to conduction along a single axon

Description : Type of synapse in which transmission of impulse across neuron is similar to conduction along a single axon

Last Answer : Type of synapse in which transmission of impulse across neuron is similar to conduction along a single axon

Type of synapse in which transmission of impulse across neuron is similar to conduction along a single axon

Description : Type of synapse in which transmission of impulse across neuron is similar to conduction along a single axon

Last Answer : Type of synapse in which transmission of impulse across neuron is similar to conduction along a single axon

When a neuron is in resting state i.e., not conducting any impulse, the axonal membrane is (a) comparatively more permeable to Na+ ions and nearly impermeable to K+ ions (b) equally permeable to both Na+ and K+ ions (c) impermeable to both Na+ and K+ ions (d) comparatively more permeable to K+ ions and nearly impermeable to Na+ ions.

Description : When a neuron is in resting state i.e., not conducting any impulse, the axonal membrane is (a) comparatively more permeable to Na+ ions and nearly impermeable to K+ ions (b) equally permeable to both ... + and K+ ions (d) comparatively more permeable to K+ ions and nearly impermeable to Na+ ions.

Last Answer : (d) comparatively more permeable to K+ ions and nearly impermeable to Na+ ions.

A streamline is a line in flow field, (A) That is traced by all the fluid particles passing through a given point (B) Along which a fluid particle travels (C) Such that at every point on it, the velocity is tangential to it (D) None of these

Description : A streamline is a line in flow field, (A) That is traced by all the fluid particles passing through a given point (B) Along which a fluid particle travels (C) Such that at every point on it, the velocity is tangential to it (D) None of these

Last Answer : (C) Such that at every point on it, the velocity is tangential to it

With regard to knee jerk: a. it is a monosynaptic reflex b. the impulse travels via type Ia afferent fibres c. the Golgi body is an important component d. the stimulus begins in the tendon

Description : With regard to knee jerk: a. it is a monosynaptic reflex b. the impulse travels via type Ia afferent fibres c. the Golgi body is an important component d. the stimulus begins in the tendon

Last Answer : the impulse travels via type Ia afferent fibres

Name the parts labelled A and B in the neuron drawn above. Which part acquires the information in the neuron ? NCERT Solutions for Class 10 Science Chapter 7 Control and Coordination HOTS Q7 -Biology-10

Description : Name the parts labelled A and B in the neuron drawn above. Which part acquires the information in the neuron ? NCERT Solutions for Class 10 Science Chapter 7 Control and Coordination HOTS Q7 -Biology-10

Last Answer : A-Dendrite, B-Axon Dandrite. Dandrite to cell body or cyton to axon. Electrical impulse In the region of synapse.

Which of the following ECG waveforms characterizes conduction of an electrical impulse through the left ventricle? a) QRS complex The QRS complex represents ventricular depolarization b) P wave The P wave is an ECG characteristic reflecting conduction of an electrical impulse through the atria. c) PR interval The PR interval is a component of an ECG tracing reflecting conduction of an electrical impulse through the AV node. d) QT interval The QT interval is an ECG characteristic reflecting the time from ventricular depolarization to repolarization.

Description : Which of the following ECG waveforms characterizes conduction of an electrical impulse through the left ventricle? a) QRS complex The QRS complex represents ventricular depolarization b) P ... QT interval is an ECG characteristic reflecting the time from ventricular depolarization to repolarization.

Last Answer : a) QRS complex The QRS complex represents ventricular depolarization

Which of the following ECG characteristics is usually seen when a patient’s serum potassium level is low? a) U wave The U wave is an ECG waveform characteristic that may reflect Purkinje fiber repolarization. It is usually seen when a patient’s serum potassium level is low. b) T wave The T wave is an ECG characteristic reflecting repolarization of the ventricles. It may become tall or “peaked” if a patient’s serum potassium level is high. c) P wave The P wave is an ECG characteristic reflecting conduction of an electrical impulse through the atria. d) QT interval The QT interval is an ECG characteristic reflecting the time from ventricular depolarization to repolarization.

Description : Which of the following ECG characteristics is usually seen when a patient's serum potassium level is low? a) U wave The U wave is an ECG waveform characteristic that may ... interval The QT interval is an ECG characteristic reflecting the time from ventricular depolarization to repolarization.

Last Answer : a) U wave The U wave is an ECG waveform characteristic that may reflect Purkinje fiber repolarization. It is usually seen when a patient’s serum potassium level is low.

Look at the following flow chart that shows the processes of production.Fill in the products derived through the various processes of production in the boxes given below. -SST 10th

Description : Look at the following flow chart that shows the processes of production.Fill in the products derived through the various processes of production in the boxes given below. -SST 10th

Last Answer : (i) 1. Raw fibre 2. Yarn 3. Fabric 4. Garments (ii) ... per kg while if it is sold as a trouser it may fetch ` 800 per kg. Value is added at every stage from fibre to yarn to fabric and to garments.

Which one of the following is the correct matching of the site of action on the given substrate, the enzyme acting upon it and the end product? (a) Small intestine : Proteins Pepsin  →  Amino acids (b) Stomach : Fats Lipase  →  Micelles (c) Duodenum : Triglycerides Trypsin  →  Monoglycerides (d) Small intestine : Starch α-Amylase  →  Disaccharide (maltose)

Description : Which one of the following is the correct matching of the site of action on the given substrate, the enzyme acting upon it and the end product? (a) Small intestine : Proteins Pepsin  →  ... Trypsin  →  Monoglycerides (d) Small intestine : Starch α-Amylase  →  Disaccharide (maltose)

Last Answer : (d) Small intestine : Starch α-Amylase  →  Disaccharide

(4) Fundamental unit of nervous system Explanation: A neuron is a cell that carries electrical impulses. Neurons are the basic units of the nervous system and its most important part is the brain. Every neuron is made of a cell body (also called a soma), dendrites and an axon.

Description : (4) Fundamental unit of nervous system Explanation: A neuron is a cell that carries electrical impulses. Neurons are the basic units of the nervous system and its most important part is the brain. Every neuron is made of a cell body (also called a soma), dendrites and an axon.

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The nurse auscultates the apex beat at which of the following anatomical locations? a) Fifth intercostal space, midclavicular line The left ventricle is responsible for the apex beat or the point of maximum impulse, which is normally palpable in the left midclavicular line of the chest wall at the fifth intercostal space. b) Mid-sternum The right ventricle lies anteriorly, just beneath the sternum. c) 2” to the left of the lower end of the sternum Use of inches to identify the location of the apex beat is inappropriate based upon variations in human anatomy. d) 1” to the left of the xiphoid process Auscultation below and to the left of the xiphoid process will detect gastrointestinal sounds, but not the apex beat of the heart.

Description : The nurse auscultates the apex beat at which of the following anatomical locations? a) Fifth intercostal space, midclavicular line The left ventricle is responsible for the apex beat or the point of ... of the xiphoid process will detect gastrointestinal sounds, but not the apex beat of the heart.

Last Answer : a) Fifth intercostal space, midclavicular line The left ventricle is responsible for the apex beat or the point of maximum impulse, which is normally palpable in the left midclavicular line of the chest wall at the fifth intercostal space.

How does body temperature affect the conduction speed of an electrical impulse?

Description : How does body temperature affect the conduction speed of an electrical impulse?

Last Answer : What is the answer ?

A nerve impulse is essentially a wave of A A. Electrical charge B. Mechanical Charge C. Magnetic charge D. All of the these

Description : A nerve impulse is essentially a wave of  A A. Electrical charge B. Mechanical Charge C. Magnetic charge D. All of the these

Last Answer : Electrical charg

A nerve impulse is essentially a wave of a. mechanical charge b. electrical charge c. Both d. None

Description : A nerve impulse is essentially a wave of a. mechanical charge b. electrical charge c. Both d. None

Last Answer : electrical charge

The refractive indices of four media A, B, C and D are given in the following table: light-reflection-and-refraction-chapter-wise-important-questions-class-10-science-9 If light, travels from one medium to another, in which case the change in speed will be (i) minimum, (ii) maximum? -Physics

Description : The refractive indices of four media A, B, C and D are given in the following table: light-reflection-and-refraction-chapter-wise-important-questions-class-10-science-9 If light, travels from one medium to another, in which case the change in speed will be (i) minimum, (ii) maximum? -Physics

Last Answer : (i) Minimum change is seen as light moves between 1.50 and 1.52, i.e. B and C. (ii) Maximum change when light moves between 1.33 and 2.40, i.e. A and D.

8. What does a neuron look like? -Science

Description : 8. What does a neuron look like? -Science

Last Answer : A neuron is a nerve cell consisting of the cell body with a nucleus and cytoplasm from which a long and thin hair like structure emerges. Every neuron has one elongated part known as the axon ... short and small branched structures known as dendrites. A single neuron can even be a meter long.

If sound travels through matter (air) and gas is a medium then what medium slows down the flow of sound the most?

Description : If sound travels through matter (air) and gas is a medium then what medium slows down the flow of sound the most?

Last Answer : Vacuum.

In the following food chain, 100 J of energy is available to the lion. How much energy was available to the producer? Plants → Deer → Lion -Science

Description : In the following food chain, 100 J of energy is available to the lion. How much energy was available to the producer? Plants → Deer → Lion -Science

Last Answer : Here we will use the 10% law of transfer of energy. As, it is given that 100 J of energy is available to lion. Let the amount of enrgy available to deer be x Joules. According to 10% law, Energy available to lion ... y = 10000 J So, the energy available to plants, i.e., producer is 10,000J.

Write algorithm and draw flow-chart to print even numbers from 1 to 100.

Description : Write algorithm and draw flow-chart to print even numbers from 1 to 100.

Last Answer : Here's one possible algorithm to print even numbers from 1 to 100: Start with a variable i equal to 1. Check if i is less than or equal to 100. If i is less than or equal to 100 ... and increments `i` by 1. The loop continues until `i` is greater than 100, and the program ends.

The conversion in a mixed reactor/accomplishing a reaction A → 3R is 50% when gaseous reactant 'A' is introduced at the rate of 1 litre/second and the leaving flow rate is 2 litres/second. The holding time for this operation is __________ second. (A) 0.5 (B) 1 (C) 2(D) 3

Description : The conversion in a mixed reactor/accomplishing a reaction A → 3R is 50% when gaseous reactant 'A' is introduced at the rate of 1 litre/second and the leaving flow rate is 2 litres/second. The holding time for this operation is __________ second. (A) 0.5 (B) 1 (C) 2 (D) 3

Last Answer : (A) 0.5

The reaction A → B is conducted in an adiabatic plug flow reactor (PFR). Pure A at a concentration of 2 kmol/m3 is fed to the reactor at the rate of 0.01 m3 /s and at a temperature of 500 K. If the exit conversion is 20%, then the exit temperature (in k) is (Data: Heat of reaction at 298 K = - 50000 kJ/ kmole of A reacted Heat capacities CPA = CPB = 100kJ/kmole. K (may be assumed to be independent of temperature)) (A) 400 (B) 500 (C) 600 (D) 1000

Description : The reaction A → B is conducted in an adiabatic plug flow reactor (PFR). Pure A at a concentration of 2 kmol/m3 is fed to the reactor at the rate of 0.01 m3 /s and at a temperature of 500 K. If the exit ... /kmole. K (may be assumed to be independent of temperature)) (A) 400 (B) 500 (C) 600 (D) 1000

Last Answer : (C) 600

A second order liquid phase reaction, A → B, is carried out in a mixed flow reactor operated in semi batch mode (no exit stream). The reactant A at concentration CAF is fed to the reactor at a volumetric flow rate of F. The volume of the reacting mixture is V and the density of the liquid mixture is constant. The mass balance for A is (A) d(VCA )/dt = -F (CAF - CA ) - kCA 2V (B) d(VCA )/dt = F (CAF - CA ) - kCA 2V (C) d(VCA )/dt = -FCA - kCA 2V (D) d(VCA )/dt = FCAF - kCA 2V

Description : A second order liquid phase reaction, A → B, is carried out in a mixed flow reactor operated in semi batch mode (no exit stream). The reactant A at concentration CAF is fed to the reactor at a volumetric flow rate of F. The volume ... 2V (C) d(VCA )/dt = -FCA - kCA 2V (D) d(VCA )/dt = FCAF - kCA 2V

Last Answer : (D) d(VCA )/dt = FCAF - kCA 2V

Study the flow chart given below. Name the hormones involved at each stage and explain their role. -Biology

Description : Study the flow chart given below. Name the hormones involved at each stage and explain their role. -Biology

Last Answer : Ovulation Induced by LH secreted from anterior pituitary. LH also stimulates the formation of corpus luteum and secretion of progesterone from it. Pregnancy Progesterone is necessary for ... secretion of oxytocin which induces stronger contractions of uterine muscles leading to parturition.

Study the flow chart given below. Name the hormones involved at each stage and explain their function. -Biology

Description : Study the flow chart given below. Name the hormones involved at each stage and explain their function. -Biology

Last Answer : Hypothalamus Gonadotropin Releasing Hormones (GnRH) are released by the hypothalamus. Pituitary GnRH stimulates pituitary to release FSH and LH. Ovary FSH and LH act on ovary. LH ... ruptured follicle and secretion of progesterone by the corpus luteum. Pregnancy Progesterone maintains pregnancy.

Study the given flow chart, and identify A, B, C, D and E.

Description : Study the given flow chart, and identify A, B, C, D and E.

Last Answer : Study the given flow chart, and identify A, B, C, D and E. A. A-Cortex, B- Medulla, ... , C-Zona glomoerulosa, D- Zona reticulata, E-Zona fasciculata

The concentration of A in a first order reaction, A → B, decreases (A) Linearly with time (B) Exponentially with time (C) Very abruptly towards the end of the reaction (D) Logarithmically with time

Description : The concentration of A in a first order reaction, A → B, decreases (A) Linearly with time (B) Exponentially with time (C) Very abruptly towards the end of the reaction (D) Logarithmically with time

Last Answer : (B) Exponentially with time

What type of sensory information travels from the retina through the thalamus to the visual cortex?

Description : What type of sensory information travels from the retina through the thalamus to the visual cortex?

Last Answer : smell

When an impulse reach the end of the axon the axon releases?

Description : When an impulse reach the end of the axon the axon releases?

Last Answer : Neurotransmitters to the synapse and the neurotransmitters bindwith the receptors releasing the second messengers.

Which of the spaces listed is defined as a 'location requiring an exceptional degree of protection' when considering the installation of shipboard electrical equipment? A. Machinery space B. Chart room C. Console room D. Accommodation space

Description : Which of the spaces listed is defined as a 'location requiring an exceptional degree of protection' when considering the installation of shipboard electrical equipment? A. Machinery space B. Chart room C. Console room D. Accommodation space

Last Answer : Answer: A

Speed ‘v’ with which wave travels through a medium is given by A. modulus of elasticity/density of the medium B. modulus of elasticity/√(density of the medium) C. √(modulus of elasticity/density of the medium) D. v=d/t

Description : Speed ‘v’ with which wave travels through a medium is given by A. modulus of elasticity/density of the medium B. modulus of elasticity/√(density of the medium) C. √(modulus of elasticity/density of the medium) D. v=d/t

Last Answer : √(modulus of elasticity/density of the medium)

What information do you get from the following chemical equation: Zn(s) + 2HCl (dil) → ZnCl2 (aq) + H2(g)

Description : What information do you get from the following chemical equation: Zn(s) + 2HCl (dil) → ZnCl2 (aq) + H2(g)

Last Answer : This gives zinc chloride and hydrogen. The word equation is: Zinc + Hydrochloric acid → Zinc chloride + Hydrogen Formulae for the products are ZnCl2 and H2

Stopping distance of vehicles : When brakes are applied to a moving vehicle, the distance it travels before stopping is called stopping distance. It is an important factor for road safety and depends on the initial velocity ( v 0 ) and the braking capacity, or deceleration, ?a that is caused by the braking. A car travelling at speed 72km/hr suddenly applies the brake with the deceleration of 5m/s2. Find the stopping distance of the car -Science

Description : Stopping distance of vehicles : When brakes are applied to a moving vehicle, the distance it travels before stopping is called stopping distance. It is an important factor for road safety and depends on ... the brake with the deceleration of 5m/s2. Find the stopping distance of the car -Science

Last Answer : Here u=72 km/hr = 72×10003600m/s=2072×10003600m/s=20 m/s , v=0 a= -5 m/s2 Now using the relation v2=u2+2asv2=u2+2as 0=(20)2+2×(−5)×s0=(20)2+2×(−5)×s s=40ms=40m

An object starting from rest travels 20 m in first 2 s and 160 m in next 4 s.What will be the velocity after 7 s from the start. -Science

Description : An object starting from rest travels 20 m in first 2 s and 160 m in next 4 s.What will be the velocity after 7 s from the start. -Science

Last Answer : Total distance travelled by the object =20 m + 16 m = 36 m Total time taken = 4 s + 2 s = 6 s Average Speed=total Distance travelledtotal time taken Average Speed=total Distance travelledtotal time taken Average Speed=366=6Average Speed=366=6 m/s

A particle experiences constant acceleration for 20 seconds after starting from rest. If it travels a distance D1 in the first 10 seconds and distance D2 in the next 10 seconds then, (a) D2 = D1 (b) D2 = 2D1 (c) D2 = 3D1 (d) D2 = 4D1 -Science

Description : A particle experiences constant acceleration for 20 seconds after starting from rest. If it travels a distance D1 in the first 10 seconds and distance D2 in the next 10 seconds then, (a) D2 = D1 (b) D2 = 2D1 (c) D2 = 3D1 (d) D2 = 4D1 -Science

Last Answer : (c) is the answer

how,he speed of sound is about 3.4 × 102 meters per second. Mark is performing a science experiment and he needs to know how far sound travels in 3 × 1010 seconds. If Mark uses a calculator to solve this problem, how will the calculator show the answer?

Description : how,he speed of sound is about 3.4 × 102 meters per second. Mark is performing a science experiment and he needs to know how far sound travels in 3 × 1010 seconds. If Mark uses a calculator to solve this problem, how will the calculator show the answer?

Last Answer : 10200000000000

Neuron is the name given to which special type of biological cell? a) a nerve cell b) a brain cell c) a skin cell

Description : Neuron is the name given to which special type of biological cell? a) a nerve cell b) a brain cell c) a skin cell

Last Answer : ANSWER: A -- A NERVE CELL

Chemicals by which nerve impulses transmit through one neuron by another are

Description : Chemicals by which nerve impulses transmit through one neuron by another are

Last Answer : Chemicals by which nerve impulses transmit through one neuron by another are

Junctions from which impluse is transmitted through one neuron to another are known as

Description : Junctions from which impluse is transmitted through one neuron to another are known as

Last Answer : Junctions from which impluse is transmitted through one neuron to another are known as