Bio 7 Review

Front

What is the basic unit of life?

Back

Cells are the basic unit of life, serving as the building blocks for all living organisms.

Front

What is the Total Magnification if a microscope has a 10x ocular lens and a 40x objective lens?

Back

Total Magnification = Ocular Lens Magnification x Objective Lens Magnification = 10x x 40x = 400x.

Front

What type of cell contains endoplasmic reticulum?

Back

Eukaryotic cells contain endoplasmic reticulum, which is involved in protein and lipid synthesis.

Front

What does the prefix 'karyo-' refer to in biology?

Back

'Karyo-' refers to the nucleus of a cell, as in eukaryotic (true nucleus) and prokaryotic (before nucleus) cells.

Front

What type of cell is characterized by the absence of a nucleus?

Back

Prokaryotic cells are characterized by the absence of a nucleus.

Front

What is the function of the cell membrane?

Back

The cell membrane controls the movement of substances in and out of the cell, maintaining homeostasis.

Front

What is the role of mitochondria in a cell?

Back

Mitochondria are known as the powerhouse of the cell, generating ATP through cellular respiration.

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.

Front

What is natural selection?

Back

Natural selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is DNA?

Back

DNA (deoxyribonucleic acid) is the molecule that carries the genetic instructions for life.