Biology Chapter on Movement and Coordination

<p>To receive, process, and transmit information for coordinated responses. (D)</p> Signup and view all the answers

<p>The ability to adapt behavior based on the specific context of the situation. (B)</p> Signup and view all the answers

<p>Appropriate movement is purposeful and intentional, while random movement is unpredictable and uncontrolled. (D)</p> Signup and view all the answers

<p>It highlights the importance of internal communication for coordinated function. (D)</p> Signup and view all the answers

<p>Reflex actions are involuntary and automatic, while walking requires conscious effort and coordination. (A)</p> Signup and view all the answers

<p>The brain receives signals from all parts of the body, processes them, and sends out instructions to muscles for action. (D)</p> Signup and view all the answers

<p>Thoughtful actions are often slower and less efficient due to the need for complex neural processing. (B)</p> Signup and view all the answers

<p>To regulate the flow of neurotransmitters across the synaptic cleft. (C)</p> Signup and view all the answers

<p>Stepping on a sharp object and instantly withdrawing your foot. (D)</p> Signup and view all the answers

<p>The cerebellum coordinates voluntary movements, maintains posture, and ensures balance. (B)</p> Signup and view all the answers

<p>The smell of the agarbatti stimulates receptors in the nose, which transmit signals to the olfactory bulb in the forebrain. (A)</p> Signup and view all the answers

<p>Reflex arcs were an early evolutionary adaptation for survival, and they have remained essential even as more complex brain structures evolved. (C)</p> Signup and view all the answers

<p>The brain needs time to process information, so the spinal cord can initiate reflex actions without waiting for brain signals. (B)</p> Signup and view all the answers

<p>The brain is not directly involved in reflex actions; they are controlled by the spinal cord. (C)</p> Signup and view all the answers

<p>Your heart beating rhythmically without conscious control. (C)</p> Signup and view all the answers

<p>At the end of the axon, the electrical impulse triggers the release of chemical messengers that cross the synapse. (A)</p> Signup and view all the answers

<p>The heat sensation would trigger a direct connection between the sensory nerve and motor nerve in the spinal cord, leading to a rapid withdrawal response. (D)</p> Signup and view all the answers

<p>The medulla, located in the hindbrain. (B)</p> Signup and view all the answers

<p>The ability to coordinate movements and maintain balance. (D)</p> Signup and view all the answers

<p>A student solves a complex math problem in their head. (B)</p> Signup and view all the answers

<p>The reflex arc bypasses the brain, allowing for a simpler and faster response. (D)</p> Signup and view all the answers

<p>The brain is protected by a layer of thick cartilage around the skull. (A)</p> Signup and view all the answers

<p>Muscle cells contain special proteins that change their shape and arrangement, causing the cell to shorten. (C)</p> Signup and view all the answers

<p>Movement independent of growth is faster than movement dependent on growth because it does not require the plant to grow. (A)</p> Signup and view all the answers

<p>The plant's cells undergo rapid changes in water content, leading to swelling or shrinking and movement. (C)</p> Signup and view all the answers

<p>The tendril's growth is directed by the stimulus of touch, causing it to grow more rapidly on one side of the tendril. (C)</p> Signup and view all the answers

<p>This growth pattern is a response to the stimulus of gravity, allowing the plant to anchor itself in the soil and reach for sunlight. (B)</p> Signup and view all the answers

<p>Chemical communication is a slower but more widespread method of coordinating activities in both plants and animals. (C)</p> Signup and view all the answers

<p>Animals use both electrical impulses and chemical signals, while plants primarily use chemical signals. (A)</p> Signup and view all the answers

<p>The movement of sunflowers involves growth, making it inherently slower than the movement of the sensitive plant. (D)</p> Signup and view all the answers

<p>The movement of a plant in response to the presence of water. (D)</p> Signup and view all the answers

<p>Plants are capable of adjusting their growth direction in response to environmental changes. (D)</p> Signup and view all the answers

<p>Chemical signals can reach all cells in the body, regardless of nervous connections, while electrical impulses are limited. (C), Chemical signals can be sustained over longer periods, enabling persistent coordination of activities. (D)</p> Signup and view all the answers

<p>The movement of sensitive plant leaves is a rapid change in turgor pressure within cells, while shoot bending is a slow process of cell elongation. (C)</p> Signup and view all the answers

<p>Stimulation of cell division for rapid muscle growth. (A)</p> Signup and view all the answers

<p>Insufficient iodine inhibits the production of thyroxin, leading to the thyroid gland's overgrowth as it attempts to compensate. (B)</p> Signup and view all the answers

<p>Insulin, causing diabetes. (A)</p> Signup and view all the answers

<p>Plant hormones primarily control directional growth responses to stimuli like light and gravity, while animal hormones regulate a broader range of functions including metabolism and development. (D)</p> Signup and view all the answers

Functions essential for maintaining life in organisms.

Movement resulting from the growth of a living organism, like a plant pushing through soil.

Movement triggered by changes in the surroundings, like animals reacting to stimuli.

Movement that is coordinated and appropriate for a specific environmental change.

Body system responsible for control and coordination in animals, using nerves and signals.

Tissues that perform specific functions, such as control and coordination in multicellular organisms.

System of muscles responsible for movement and coordination in animals.

Specialized nerve cells that detect environmental stimuli.

An electrical signal that travels along a neuron.

The gap between two neurons where signals are transmitted.

A neural pathway that controls reflex actions.

A bundle of nerves that connects the brain with the body.

Includes the brain and spinal cord, coordinating body functions.

Nerve cells responsible for the sense of taste.

Nerve cells that detect smell.

A signal released at synapses to transmit impulses.

Actions that are consciously controlled by the brain, like writing or moving.

Nerves that connect the central nervous system to the rest of the body.

The brain region responsible for thinking and processing sensory information.

Involuntary and automatic responses to stimuli, like pulling back from heat.

Part of the hind-brain responsible for coordination and balance.

The part of the hind-brain controlling involuntary actions like breathing and heartbeat.

Signals sent to the brain from sensory organs, like sight and smell.

Brain regions that control voluntary muscle movements.

An electrical signal that travels along a nerve, triggering muscle movement.

Actions that occur without conscious control, like digestion.

Plant hormones that promote cell elongation and growth.

Plant hormones that stimulate stem growth and development.

Hormone secreted during stress to prepare the body for 'fight or flight.'

Hormone produced by the thyroid that regulates metabolism and growth.

Hormone that regulates physical growth and development.

Quick movement of plants in response to stimuli without growth.

Process by which plants transmit information without nervous tissue.

Directional growth movements in response to environmental stimuli.

Plant growth movement towards light.

Growth of plant roots downwards in response to gravity.

Plant growth response to moisture in the soil.

Growth response of plants to chemicals or nutrients.

Movement in plants caused by altering water content in cells.

Differentiation between quick responses and gradual growth movements.

Chemical compounds that coordinate plant growth and responses.