Podcast
Play an AI-generated podcast conversation about this lesson
Download our mobile app to listen on the go
Get App
Questions and Answers
Which of the following is true about cells?
Which of the following is true about cells?
- Cells are composed of trillions of cells
- Cells are the basic structural and functional units of organisms (correct)
- Cells do not provide structure for the body
- Cells do not take in nutrients from food
What is active transport?
What is active transport?
- A transport process in which solutes move from areas of greater to lesser concentration
- A transport process that does not require energy
- A transport process that occurs in the absence of ATP
- A transport process in which solutes move from areas of lesser to greater concentration (correct)
What are cilia?
What are cilia?
- A passive transport mechanism that involves the movement of particles from an area of higher to lower concentration
- Gel-like substance surrounding the nucleus & filling the cell
- Large polymer of a nucleotide that carries the genetic information of a cell
- Hair-like processes on the surface of the cell that propel materials across a surface (correct)
What is cytoplasm?
What is cytoplasm?
Signup and view all the answers
What is diffusion?
What is diffusion?
Signup and view all the answers
Flashcards are hidden until you start studying
Study Notes
Cellular Biology
- Cells are the basic structural and functional units of life.
- Cells can be thought of as tiny rooms that contain all the components necessary for life.
Active Transport
- Active transport is the movement of molecules from an area of low concentration to an area of high concentration.
- This process requires energy, usually in the form of ATP.
- Active transport is necessary for cells to maintain proper internal environments and to regulate the concentration of certain molecules.
Cilia
- Cilia are small, hair-like structures that protrude from the surface of cells.
- Cilia are involved in movement, sensing, and signaling.
- They can be found in many types of cells, including epithelial cells, nerve cells, and sperm cells.
Cytoplasm
- Cytoplasm is the jelly-like substance inside a cell membrane.
- It is composed of water, salts, sugars, and various organelles.
- Cytoplasm provides a medium for chemical reactions, supports cell division, and helps maintain cell shape.
Diffusion
- Diffusion is the movement of molecules from an area of high concentration to an area of low concentration.
- This process occurs naturally, without the need for energy input.
- Diffusion helps to distribute nutrients, oxygen, and other essential molecules throughout the cell.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
