Order of Steps for Cell Material Uptake:
- Cell membrane starts to fold around the material
- Membrane goes around and covers the material
- A bubble with the material forms inside the cell
Fill in the Gaps:
The cell membrane is a (an) elastic membrane. It is made of a double layer of lipids with water-loving heads pointing out and water-fearing tails pointing in.
Select the Correct Answers for Active Transport:
In ACTIVE transport, molecules move from areas of low concentration to areas of high concentration.
Select the Correct Answers for Facilitated Diffusion:
In facilitated diffusion, special proteins in the membrane help polar molecules cross without using energy.
Match Each Cell Process with Bubble Transport:
- Releasing large molecules outside cell - exocytosis
- Breaking down cell waste - lysosome processing
- Moving proteins from Golgi - vesicle transport
- Bringing large materials into cell - endocytosis
Facts about Cell Membrane Structure and Function:
- Semipermeable membrane that controls material movement
- Double lipid layer with water-loving heads
- Contains built-in proteins and channels
Factors Deciding Water Movement during Osmosis:
- Water movement directions
- Solute amounts outside the cell
- Gradient differences between areas
Order of Transport Methods from Smallest to Largest Molecules:
- Osmosis just for water molecules
- Simple diffusion for small non-polar molecules
- Facilitated or helped diffusion through protein channels for polar molecules
- Active transport for specific ions and molecules
- Vesicle transport for large proteins and sugars
Match Each Type of Cell Transport with Energy Needs:
- Osmosis - no energy needed, just for water movement
- Helped Diffusion - no energy needed, uses membrane proteins
- Endocytosis - needs energy, brings large molecules into cell
- Diffusion - no energy needed, moves from high to low amounts
- Active Transport - need energy, moves against the gradient
Match Each Organelle with its Job:
- Vesicles - transport large molecules in and out of cell
- Endoplasmic Reticulum - makes and moves proteins
- Golgi Apparatus - packages and sends cell materials
- Lysosome - breaks down unwanted cell materials
- Mitochondria - makes energy for cell transport
Arrange Cellular Events for Plant Cell Response:
- Soil becomes concentrated with salts
- Cell membrane sends stress signals to the nucleus
- Cell begins making stress response proteins
- Water moves out of the cell by osmosis
- Cell vacuole shrinks and loses water pressure