7th Fall semester test study guide

Front

What is the basic unit of life?

Back

Cells are the basic units of life.

Front

What process do amebas use to take in food?

Back

Endocytosis is the process used by amebas to get food.

Front

What is active transport?

Back

Active transport is the movement of ions or molecules across a cell membrane from a region of lower concentration to a region of higher concentration, requiring energy.

Front

What is a biotic factor?

Back

A biotic factor is a living component of an ecosystem, such as plants, animals, and microorganisms.

Front

Why do different cells in the same organism look different?

Back

Different cells specialize in different functions, leading to variations in shape and structure.

Front

What is the function of an electron microscope?

Back

An electron microscope is used to view very small objects, such as cells and their internal structures, at a much higher magnification than light microscopes.

Front

What is the difference between passive transport and active transport?

Back

Passive transport does not require energy and moves substances down their concentration gradient, while active transport requires energy to move substances against their concentration gradient.

Front

What is exocytosis?

Back

Exocytosis is the process by which a cell expels materials in vesicles that fuse with the cell membrane.

Front

What is the role of chloride ions in cells?

Back

Chloride ions help maintain osmotic balance and are involved in various cellular processes, including the regulation of fluid movement.

Front

What is the significance of cell specialization?

Back

Cell specialization allows different types of cells to perform specific functions efficiently, contributing to the overall functioning of an organism.