Regulation in Living Organisms Quiz

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What is the main difference between chemical and neural control in terms of the mode of transmission of messages?

Chemical messengers are transmitted through blood, while nerve impulses are transmitted through nerve fibres (correct)
Chemical messengers are transmitted through nerve fibres, while nerve impulses are transmitted through blood
Both chemical messengers and nerve impulses are transmitted through nerve fibres
Both chemical messengers and nerve impulses are transmitted through blood

In which type of coordination are hormonal secretions involved?

Nervous coordination
Endocrine coordination
Chemical coordination (correct)
Neural coordination

What is the main function of the endocrine glands in the body?

To transmit nerve impulses
To maintain homeostasis
To control neural coordination
To secrete chemical messengers or hormones (correct)

Why do plants only exhibit chemical coordination and not neural coordination?

Plants do not have a nervous system (B) Signup and view all the answers

Which type of glands pour their secretions directly into the blood?

Ductless glands (A) Signup and view all the answers

What controls the neural coordination in living beings?

Nerve cells or neurons (B) Signup and view all the answers

What is the main function of the endocrine system?

Producing and releasing hormones to regulate body functions (A) Signup and view all the answers

Which gland is responsible for regulating metabolism and energy production?

Thyroid gland (D) Signup and view all the answers

What are the characteristic changes known as 'secondary sexual characteristics' during adolescence primarily driven by?

Changes in the endocrine system (D) Signup and view all the answers

Why do endocrine glands not have ducts?

To ensure rapid distribution of secretions throughout the body (A) Signup and view all the answers

What is the main difference between chemical and neural control in terms of the speed of message transmission?

Neural messages travel rapidly through nerve fibres (D) Signup and view all the answers

Which structural component is associated with neural control?

Nerve cells or neurons (D) Signup and view all the answers

What is the main effect and duration of messages in chemical control?

Generalized or widespread effect; influences target cells (D) Signup and view all the answers

Why do plants exhibit only chemical coordination and not neural coordination?

Plants lack nerve cells or neurons (C) Signup and view all the answers

Which mode of transmission of messages is associated with the endocrine system?

Hormones are transmitted through blood (B) Signup and view all the answers

What is the primary difference between exocrine and endocrine glands?

Exocrine glands have ducts, while endocrine glands do not have ducts. (B) Signup and view all the answers

Which gland plays a crucial role in the body's response to stress and regulation of metabolism?

Adrenal gland (D) Signup and view all the answers

What is the main function of the endocrine system in coordinating body functions?

Regulating growth and development (C) Signup and view all the answers

What are the characteristic changes known as 'secondary sexual characteristics' primarily driven by during adolescence?

Sex hormones (B) Signup and view all the answers

Why are endocrine glands referred to as ductless glands?

Because they release hormones directly into the bloodstream (B) Signup and view all the answers