Life, Levels, and Organic Review

Front

What is a virus?

Back

A virus is not alive but has DNA and can reproduce with a host cell.

Front

Which of the following is NOT a characteristic of life?

Back

Living things move from place to place.

Front

What are enzymes made of?

Back

Enzymes are made of proteins.

Front

Define 'cell'.

Back

A cell is the basic unit of life, composed of cytoplasm and a nucleus enclosed in a membrane.

Front

What is the function of DNA?

Back

DNA carries genetic information and instructions for the development and functioning of living organisms.

Front

List the characteristics of life.

Back

1. Made of cells 2. Reproduce 3. Grow and develop 4. Respond to stimuli 5. Evolve over time 6. Maintain homeostasis.

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 are the four macromolecules essential for life?

Back

1. Carbohydrates 2. Proteins 3. Lipids 4. Nucleic Acids.

Front

What role do proteins play in living organisms?

Back

Proteins serve as enzymes, structural components, signaling molecules, and play a role in immune response.

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 organelles.