CHAPTER 12 (F4): LESSON

Multiple Choice

What is the term used to describe the ability of organisms to detect changes in their environment?

• Sensitivity

• Coordination

• Response

• Stimulus

Open Ended

Why is the ability to detect and respond to changes in the environment important for organisms?

Multiple Choice

Which of the following is an example of an internal stimulus?

• Change in blood sugar level

• Sound

• Light

• Touch

Fill in the Blank

The part of the body that responds to a stimulus is called the ___.

Open Ended

Explain the process by which mammals detect and respond to a stimulus, starting from the detection by receptors to the final response by effectors.

Multiple Select

Which of the following are roles of the brain in the coordination and response process?

• Translates nerve impulses

• Acts as the integration centre

• Produces hormones directly

• Coordinates an appropriate response

Multiple Choice

Which two systems are primarily responsible for coordination and response in organisms?

• Nervous system and endocrine system

• Digestive system and respiratory system

• Circulatory system and excretory system

• Skeletal system and muscular system

Open Ended

Compare how the body responds to external stimuli, such as hearing a phone ring, and internal stimuli, such as increased blood pressure during running. Highlight the similarities and differences in the pathways involved.

Multiple Choice

Which of the following statements best explains the role of sensory receptors in detecting information from the environment?

• Sensory receptors only detect external stimuli.

• Sensory receptors are found only in the brain.

• Sensory receptors detect information in both external and internal environments.

• Sensory receptors are not sensitive to specific stimuli.

Multiple Choice

Which of the following pairs of sensory receptor and stimulus are correctly matched?

• Photoreceptor - Pain

• Thermoreceptor - Change in temperature

• Baroreceptor - Light

• Nociceptor - Touch and pressure

Open Ended

Match the following sensory receptors with their corresponding stimulus: Photoreceptor, Thermoreceptor, Chemoreceptor, Baroreceptor, Mechanoreceptor, Nociceptor.

Fill in the Blank

All receptors can be considered as energy converters because they convert one form of energy into another. For example, the eye photoreceptor converts ___ energy into electrical signals.

Multiple Choice

When the body temperature increases above the normal range, which structure transmits this information to the effectors to decrease the temperature back to normal?

• Sensory receptor

• Integration centre

• Effector organ

• Photoreceptor

Open Ended

Explain why the ability to detect and respond to changes in the environment is important for the survival of organisms.

Multiple Choice

Which of the following is NOT a part of the human nervous system?

• Heart

• Brain

• Spinal cord

• Cranial nerves

Open Ended

Explain the difference between the central nervous system and the peripheral nervous system.

Fill in the Blank

The central nervous system consists of the ___ and spinal cord.

Multiple Select

Which of the following are components of the brain?

• Cerebrum

• Hypothalamus

• Cerebellum

• Spinal nerve

Fill in the Blank

The cerebrum is responsible for higher mental abilities such as ___, memorising, linguistic skills and mathematics skills.

Open Ended

Describe two main functions of the cerebrum based on the information provided.

Multiple Choice

Which of the following functions is primarily regulated by the hypothalamus?

• Body temperature regulation

• Muscle contraction coordination

• Secretion of digestive enzymes

• Formation of memories

Multiple Select

Which of the following are roles of the hypothalamus as described in the images?

• Regulating body temperature

• Connecting the nervous and endocrine systems

• Maintaining body balance

• Controlling secretion of pituitary gland hormones

Fill in the Blank

The cerebellum is responsible for maintaining body balance and coordination of muscle ___ for body movement.

Multiple Choice

Where is the pituitary gland located?

• At the base of the hypothalamus

• In the cerebellum

• In the spinal cord

• At the anterior of the medulla oblongata

Multiple Choice

In a cross section of the spinal cord, the grey matter resembles which of the following shapes?

• Butterfly

• Circle

• Triangle

• Square

Open Ended

Explain how the medulla oblongata and spinal cord work together to control involuntary actions in the body.

Open Ended

How do you think the ability to detect and respond to stimuli benefits organisms in their daily lives?

Multiple Choice

What is the term used to describe an organism's ability to detect and respond to changes in its environment?

• Sensitivity

• Coordination

• Adaptation

• Homeostasis