Comprehensive Science Practice Dec 2024

Front

What factors affect chemical reactions?

Back

Temperature and concentration are key factors that affect the rate of chemical reactions.

Front

What happens to a red blood cell in a hypertonic solution?

Back

The red blood cell will shrink due to the loss of water.

Front

Is the internal jugular vein posterior and medial to the common carotid artery?

Back

False, the internal jugular vein is lateral to the common carotid artery.

Front

Is the internal jugular vein in direct line with the right atrium of the heart?

Back

True, the internal jugular vein drains into the right atrium.

Front

What is the medical term for insatiable thirst?

Back

Polydipsia is the term for excessive thirst.

Front

What is the role of temperature in chemical reactions?

Back

Temperature increases the kinetic energy of molecules, leading to more frequent and effective collisions.

Front

What is the effect of concentration on reaction rates?

Back

Higher concentration increases the number of reactant particles, leading to a higher probability of collisions.

Front

What is a hypertonic solution?

Back

A hypertonic solution has a higher concentration of solutes compared to the inside of a cell, causing water to leave the cell.

Front

What is the function of the internal jugular vein?

Back

The internal jugular vein drains blood from the brain, face, and neck back to the heart.

Front

What is polydipsia commonly associated with?

Back

Polydipsia is often associated with conditions like diabetes mellitus.