RBSE Class 10 Chapter 6 Control and Coordination

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RBSE Class 10 Chapter 6 Control and Coordination

Fill in the blanks

Nervous System

  1. The main function of the nervous system is ______ and coordination.
  2. The neuron is the basic unit of the ______ system.
  3. The gap between two neurons is called a ______.
  4. The type of receptor that detects smell is called ______ receptors.
  5. The brain and spinal cord together constitute the ______ nervous system.
  6. The peripheral nervous system consists of ______ nerves and ______ nerves.

Reflex Actions

  1. The pathway taken by a reflex action is called a ______.
  2. Reflex arcs are formed in the ______ of the body.
  3. Reflex actions are ______ and do not involve thinking.
  4. When we touch a hot object, the ______ nerve sends signals to the spinal cord.

Human Brain

  1. The brain is protected inside a bony structure called the ______.
  2. The fluid that protects the brain and spinal cord is called ______.
  3. The cerebellum in the brain controls ______ and ______ of the body.
  4. The ______ is the main thinking part of the brain.
  5. Involuntary actions like blood pressure and salivation are controlled by the ______ in the hind-brain.

Muscles and Movement

  1. Muscle cells move by changing their ______.
  2. The ______ proteins in muscle cells are responsible for contraction.
  3. Voluntary muscles are controlled by the ______ nervous system.
  4. Involuntary actions are controlled by the ______ brain regions.
  5. The neuromuscular junction is where ______ meet muscles.

Coordination in Plants

  1. Plants do not have a ______ system or muscles for coordination.
  2. The movement of tendrils towards a support is called ______.
  3. The hormone responsible for cell elongation in plants is ______.
  4. The downward growth of roots in response to gravity is called ______.
  5. The movement of leaves in response to touch in the sensitive plant is independent of ______.

Hormones in Animals

  1. The hormone secreted by the thyroid gland is ______.
  2. The hormone responsible for regulating blood sugar levels is ______.
  3. ______ is secreted by the adrenal gland to prepare the body for emergencies.
  4. Growth hormone is secreted by the ______ gland.
  5. The reproductive hormones in females and males are ______ and ______, respectively.

Nervous System

  1. The chemical signal that helps transfer a nerve impulse across a synapse is called a ______.
  2. Electrical impulses in the nervous system travel along the ______ of neurons.
  3. Gustatory receptors detect ______, while olfactory receptors detect ______.
  4. The part of the neuron that receives information is the ______.
  5. The axon of a neuron ends in small structures called ______ terminals.

Reflex Actions

  1. Reflex actions are controlled by the ______, not the brain.
  2. In reflex actions, the sensory neuron passes signals to the ______ neuron.
  3. Reflex actions are important for ______ responses to stimuli.
  4. The contraction of the pupil in bright light is an example of a ______ reflex.
  5. The reflex arc directly connects the ______ nerve with the motor nerve.

Human Brain

  1. The forebrain has centres for processing ______, ______, and ______ sensations.
  2. The part of the brain responsible for maintaining posture and balance is the ______.
  3. The medulla oblongata is responsible for controlling ______ actions like heartbeat and breathing.
  4. The brain is divided into three major parts: ______, ______, and ______.
  5. The largest part of the human brain is the ______.

Muscles and Movement

  1. Muscle movement is caused by ______ impulses received from the nervous system.
  2. Involuntary muscles function without ______ control.
  3. The proteins ______ and ______ are involved in muscle contraction.
  4. The neuromuscular system works by transmitting signals from ______ to muscles.
  5. Smooth muscles are found in the walls of ______ and ______.

Coordination in Plants

  1. The growth of a plant towards light is called ______.
  2. Plant hormones are transported through ______ from their site of synthesis to their site of action.
  3. ______ is the hormone responsible for promoting cell division in plants.
  4. The hormone ______ inhibits plant growth and causes wilting.
  5. The growth of pollen tubes towards the ovules is an example of ______.

Hormones in Animals

  1. The pancreas secretes ______, which regulates carbohydrate metabolism.
  2. The hormone ______ helps control the metabolism of carbohydrates, proteins, and fats.
  3. The ______ gland is located in the neck and secretes thyroxin.
  4. The pituitary gland is also called the ______ gland because it regulates other glands.
  5. ______ are chemical messengers secreted by endocrine glands for communication.

Answers:-

Nervous System

  1. Control
  2. Nervous
  3. Synapse
  4. Olfactory
  5. Central
  6. Cranial, spinal

Reflex Actions

  1. Reflex arc
  2. Spinal cord
  3. Involuntary
  4. Sensory

Human Brain

  1. Cranium
  2. Cerebrospinal fluid
  3. Posture, balance
  4. Fore-brain
  5. Medulla

Muscles and Movement

  1. Shape
  2. Special
  3. Central
  4. Mid-brain and hind-brain
  5. Nerves

Coordination in Plants

  1. Nervous
  2. Thigmotropism
  3. Auxin
  4. Geotropism
  5. Growth

Hormones in Animals

  1. Thyroxin
  2. Insulin
  3. Adrenaline
  4. Pituitary
  5. Oestrogen, testosterone

Nervous System

  1. Neurotransmitter
  2. Axons
  3. Taste, smell
  4. Dendrite
  5. Axon

Reflex Actions

  1. Spinal cord
  2. Relay
  3. Immediate
  4. Involuntary
  5. Sensory

Human Brain

  1. Hearing, smell, vision
  2. Cerebellum
  3. Involuntary
  4. Forebrain, midbrain, hindbrain
  5. Forebrain

Muscles and Movement

  1. Nervous
  2. Conscious
  3. Actin, myosin
  4. Nerves
  5. Blood vessels, digestive tract

Coordination in Plants

  1. Phototropism
  2. Diffusion
  3. Cytokinins
  4. Abscisic acid
  5. Chemotropism

Hormones in Animals

  1. Insulin
  2. Thyroxin
  3. Thyroid
  4. Master
  5. Hormones

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