PBS Semester 1 Test (2023 update)

Front

What are the main types of cells or cell fragments found in blood?

Back

Erythrocytes, Platelets, Leukocytes.

Front

What is the complementary DNA strand for ATC-GTT-ACG-AAA?

Back

TAG-CAA-TGC-TTT.

Front

What are chromosomes?

Back

Linear X-shaped molecules in the cell nucleus that contain genetic material.

Front

What is the function of hemoglobin?

Back

It is the oxygen-carrying protein in erythrocytes.

Front

How can the diameter of a blood drop be used in forensic science?

Back

It can help determine the height from which the drop fell.

Front

What is the primary function of erythrocytes?

Back

To transport oxygen from the lungs to the body's tissues.

Front

What role do leukocytes play in the body?

Back

They are involved in the immune response and help fight infections.

Front

What are platelets and their function?

Back

Cell fragments that play a crucial role in blood clotting.

Front

What is plasma in the context of blood?

Back

The liquid component of blood that carries cells, nutrients, and waste products.

Front

What is the structure of DNA?

Back

A double helix formed by two strands of nucleotides.