B.C.2: DIFFUSION

What are the two main components of the cell membrane?

• phospholipid bilayer
• embedded proteins
• ribosomes
• cytoplasm
• carbohydrates

Which part of the phospholipid is hydrophilic?

• phosphate head
• lipid tail
• ribose tail
• deoxyribose head

Which part of the phospholipid is hydrophobic?

• lipid tail
• phosphate head
• ribose head
• deoxyribose tail

What does hydrophilic mean?

• water-loving
• water-fearing
• water-neutral
• oxygen-loving
• oxygen-hating

What does hydrophobic mean?

• water-fearing
• water-loving
• water-neutral
• oxygen-loving
• oxygen-hating

Which type of transport does not require energy from the cell?

• passive
• active
• endocytosis
• exocytosis

Which type of transport does require energy from the cell?

• active
• passive
• osmosis
• diffusion

Moves substances across the cell membrane from areas of higher concentration to areas of lower concentration.

• diffusion
• endocytosis
• exocytosis
• phagocytosis

Move substances across through embedded proteins from areas of higher concentration to areas of lower concentration.

• facilitated diffusion
• active transport
• pinocytosis
• endocytosis

Moves water across the cell membrane from areas of higher concentration to areas of lower concentration.

• osmosis
• active transport
• pinocytosis
• endocytosis