Biology Sem 1. Final- 24/25

Front

Why does ice float?

Back

As water freezes, the molecules move farther apart (expands) and the density decreases.

Front

At which stage do sister chromatids separate from each other?

Back

Anaphase

Front

What units are repeatedly joined together to form a strand of DNA?

Back

Nucleotides

Front

What particle is found in the nucleus and has no charge?

Back

Neutron

Front

Which phase of mitosis is characterized by the alignment of chromosomes at the cell's equator?

Back

Metaphase

Front

What is the basic unit of life?

Back

Cell

Front

What is the process by which plants convert sunlight into chemical energy?

Back

Photosynthesis

Front

What is the function of ribosomes in a cell?

Back

Protein synthesis.

Front

What is the role of DNA in living organisms?

Back

DNA stores genetic information.

Front

What is the difference between prokaryotic and eukaryotic cells?

Back

Prokaryotic cells lack a nucleus; eukaryotic cells have a nucleus.