midterm review

Front

What is an allergy?

Back

An allergy is a reaction by the immune system to a substance (allergen) that is usually harmless to most people, causing symptoms like difficulty breathing.

Front

What triggers an immune response in the body?

Back

An immune response is triggered when white blood cells recognize foreign antigens, which are substances that the body identifies as harmful.

Front

Which two systems work together to remove waste from the body?

Back

The circulatory system and the excretory system work together to collect wastes and excess water from the blood and remove them from the body.

Front

What is the role of chemical bonds in energy storage?

Back

Energy for life processes can be stored within the chemical bonds of both sugar molecules and fat molecules.

Front

What hormone is involved in regulating blood sugar levels?

Back

Insulin is the hormone that helps regulate blood sugar levels in the body.

Front

Define 'foreign antigens'.

Back

Foreign antigens are substances that enter the body and are recognized by the immune system as threats, prompting an immune response.

Front

What is the function of the kidney?

Back

The kidney collects wastes and excess water from the blood, sending them to the bladder for storage before removal from the body.

Front

What is the difference between organic and inorganic molecules?

Back

Organic molecules contain carbon and are typically associated with living organisms, while inorganic molecules do not primarily contain carbon.

Front

What is the significance of the immune system?

Back

The immune system protects the body from infections and diseases by identifying and eliminating foreign substances.

Front

What is a feedback mechanism in the body?

Back

A feedback mechanism is a process that uses the conditions of one component to regulate the function of another, often involving hormones.