PBS Semester 1 Final Exam Review (2024)

Front

Which body system protects and supports body organs and stores minerals?

Back

Skeletal system: The skeletal system provides structure to the body, protects internal organs, and stores minerals such as calcium and phosphorus.

Front

What blood type is characterized by the absence of A and B antigens?

Back

Blood type O: Blood type O has no A or B antigens on the surface of red blood cells.

Front

Which part of blood is responsible for transporting oxygen throughout the body?

Back

Red blood cells: Red blood cells contain hemoglobin, which binds to oxygen and carries it from the lungs to the rest of the body.

Front

What are the base pairs in DNA?

Back

A-T and G-C: In DNA, adenine (A) pairs with thymine (T), and guanine (G) pairs with cytosine (C).

Front

Which type of blood vessel carries blood away from the heart?

Back

Arteries: Arteries are blood vessels that transport oxygenated blood away from the heart to the tissues.

Front

What is the function of white blood cells?

Back

White blood cells: White blood cells are part of the immune system and help the body fight infections and diseases.

Front

What is the role of platelets in the blood?

Back

Platelets: Platelets are small cell fragments that play a crucial role in blood clotting and wound healing.

Front

What is the primary function of the muscular system?

Back

Muscular system: The muscular system enables movement of the body and maintains posture through the contraction of muscles.

Front

What is the function of the integumentary system?

Back

Integumentary system: The integumentary system includes the skin, hair, and nails, and it protects the body from external damage, regulates temperature, and provides sensory information.

Front

What is the role of the endocrine system?

Back

Endocrine system: The endocrine system produces hormones that regulate various bodily functions, including growth, metabolism, and mood.