Biology Semester 1 Final Practice

Front

What are the characteristics of life?

Back

The characteristics of life include: adjusting to stimuli, getting and using energy, growing and developing, reproducing, and maintaining homeostasis.

Front

What is the chemical formula for water?

Back

H₂O

Front

What does the number 1.00794 represent in chemistry?

Back

It represents the atomic mass of Hydrogen.

Front

Why don't noble gases form bonds?

Back

Noble gases do not form bonds because they have full outer electron shells (8 valence electrons).

Front

What is surface tension?

Back

Surface tension is the strength of the cohesion of all the water molecules combined.

Front

What is homeostasis?

Back

Homeostasis is the process by which living organisms maintain a stable internal environment despite changes in external conditions.

Front

What is the role of enzymes in biological reactions?

Back

Enzymes act as catalysts to speed up chemical reactions in the body without being consumed in the process.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

Front

What is the difference between prokaryotic and eukaryotic cells?

Back

Prokaryotic cells lack a nucleus and membrane-bound organelles, while eukaryotic cells have a nucleus and membrane-bound organelles.

Front

What is the function of the cell membrane?

Back

The cell membrane controls the movement of substances in and out of the cell, providing protection and support.