Cellular Structure and Function

membrane-bound structure with special functions within eukaryotic cells

• Nucleus

• Cell wall
• Cytoplasm
• Organelle

boundary that helps control what enters and leaves a cell

• plasma membrane

• cytoplasm
• nucleus
• cell wall

Tags

NGSS.MS-LS1-2

What are the three parts of the cell theory, select all that apply

• all cells have a cell wall

• all cells come from other cells

• cells are the basic units of life

• all cells have a nucleus

• all organisms are made of one or more cells

What is the difference between prokaryotic and eukaryotic cells

• Prokaryotic cells and eukaryotic cells are the same.
• Prokaryotic cells have organelles, while eukaryotic cells do not have organelles.

• Prokaryotic cells have a larger size compared to eukaryotic cells.
• Prokaryotic cells do not have organelles, while eukaryotic cells have organelles.

protein that moves needed substances or waste materials through the plasma membrane into or out of the cell

• selective permeability

• phospholipid bilayer

• transport protein

• enzyme

a key property of the plasma membrane that allows some molecules to pass through while keeping others out

• Selective permeability
• phospholipid bilayer

• transport protein

• Random permeability

select all of true statements about isotonic, hypotonic and hypertonic solutions

• Hypertonic solutions have a higher concentration of solutes than the cells.

• Isotonic solutions have the same concentration of solutes as the cells.

• Hypertonic solutions have a lower concentration of solutes than the cells.

• Isotonic solutions have a higher concentration of solutes than the cells.

• Hypotonic solutions have a lower concentration of solutes than the cells.

net movement of particles from an area where there are many particles of the substance (high concentration) to an area where there are fewer (low concentration)

• Diffusion
• Dynamic equilibrium

• Active transport
• Osmosis

what is the difference between active and passive transport

• Passive transport requires energy to move substances across a cell membrane, while active transport does not require energy.

• Active transport is faster than passive transport in moving substances across a cell membrane.
• Active transport requires energy to move substances across a cell membrane, while passive transport does not require energy.
• Active transport is only used for small molecules, while passive transport is used for larger molecules.

Tags

NGSS.HS-LS2-3

The environment inside the plasma membrane is a semifluid material called

• endoplasmic reticulum

• cytoplasm
• mitochondria

• chloroplasts

Tags

NGSS.MS-LS1-2