Cells Test Review Part 2

Front

What is a hypertonic solution?

Back

A hypertonic solution has a higher concentration of solute particles compared to another solution, leading to water moving out of cells, causing them to shrink.

Front

What is exocytosis?

Back

Exocytosis is a process by which cells expel waste materials or substances by vesicles fusing with the plasma membrane.

Front

What are carbohydrates?

Back

Carbohydrates are organic compounds made of carbon, hydrogen, and oxygen, and they are a primary source of energy for the body.

Front

What is the hierarchy of living organisms starting from the smallest unit?

Back

The hierarchy starts from atoms, then molecules, cells, tissues, organs, organ systems, and finally organisms.

Front

What is growth in biological terms?

Back

Growth refers to an increase in size or mass of an organism, which can involve cell division and enlargement.

Front

What is a hypotonic solution?

Back

A hypotonic solution has a lower concentration of solute particles compared to another solution, causing water to move into cells, which may lead to swelling.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a passive transport process that uses protein channels to help move substances across the cell membrane without energy.

Front

What are protein pumps?

Back

Protein pumps are membrane proteins that actively transport ions or molecules across the cell membrane against their concentration gradient, requiring energy.

Front

What is the function of nucleic acids?

Back

Nucleic acids, such as DNA and RNA, store and transmit genetic information and are essential for protein synthesis.

Front

What is the role of organelles in a cell?

Back

Organelles are specialized structures within a cell that perform distinct functions, such as energy production, protein synthesis, and waste processing.