Control and Coordination Quiz: Biology Questions and Answers

Study Notes

Nervous and Chemical Coordination

Nervous coordination involves electrical impulses transmitted through neurons, whereas chemical coordination involves hormonal signals transmitted through the bloodstream.

Human Eye Anatomy

The cone cells in the human eye are responsible for detecting color in bright light.

Insulin and Blood Glucose Regulation

The main function of the hormone insulin is to regulate blood glucose levels by facilitating glucose uptake in cells.
When blood glucose concentration rises, insulin is released to stimulate glucose uptake in cells, thereby reducing blood glucose levels.

Neuron Structure and Function

The synapse is the structure responsible for transmitting nerve impulses between neurons.

Pancreatic Response to Blood Glucose Levels

When blood glucose concentration drops below normal, the pancreas responds by releasing glucagon, which stimulates the liver to release stored glucose (glycogen) into the bloodstream.

Nervous System Disorders

Functional disorders related to the nervous system include neuropathy, myopathy, and dystonia.
Paralysis is a type of disorder characterized by the complete loss of function by one or more muscle groups.

Blood Glucose Levels and Diagnosis

The normal blood glucose level after 8-10 hours of fasting is less than 100 mg/dL.
A blood glucose level of 200 mg/dL or higher after consuming a 75-gram glucose drink indicates diabetes.

Hormonal Regulation and Feedback Mechanisms

Testosterone is the hormone responsible for the development of male secondary sex characteristics like growth of facial hair and vocal changes.
A negative feedback mechanism decreases or inhibits a process, such as insulin reducing blood glucose levels.

Description

Test your knowledge on nervous and chemical coordination, components of coordination, reflex actions, reflex arcs, nerve impulse paths, pupil reflexes, role of vitamin A in vision, hormone definition, endocrine system, and other related terms.