More Active & Passive Transport

A cell that has a high need for active transport across its membrane will likely have

• many mitochondria to meet energy needs
• few mitochondria; energy is not needed for active transport
• few mitochondria; the space in the cytoplasm is needed for large ribosomes
• many mitochondria to conduct photosynthesis

Tags

NGSS.HS-LS1-7

If the concentration of sodium is greater outside a cell than inside the cell, which process could move sodium out of the cell?

• diffusion 
• osmosis
• active transport
• passive transport

Human immune cells can engulf bacteria to destroy them. This is an example of 

• pinocytosis
• phagocytosis
• exocytosis
• acidosis

An example of a molecule that is moved across the cell membrane by carrier proteins using facilitated diffusion is

• glucose
• water
• carbon dioxide
• oxygen

Materials that can move across a membrane with passive transport include

• water, oxygen, and carbon dioxide
• starch and other polysaccharides
• DNA and RNA
• large proteins

When the concentration of solute molecules outside the cell is equal to the concentration inside the cell, the solution is

• hypertonic
• hypotonic
• isotonic
• ionic

When molecules move against a concentration gradient from an area of low solute concentration to an area of high solute concentration, the process involved is

• active transport
• passive transport
• osmosis
• diffusion

Facilitated diffusion involves movement of molecules across a membrane when they bond to 

• carrier proteins
• lipid proteins
• protein synthesis
• sticky proteins

A process for removing toxins and waste from the cell is

• exorcism
• exocytosis
• endocytosis
• endoplasmic reticulum

Which is NOT a form of active transport?

• Endocytosis
• Osmosis
• Exocytosis
• Pinocytosis