BIOLOGY!

Which of the following is NOT a type of passive transport?

• Diffusion

• Osmosis

• Active Transport

• Facilitated diffusion

Answer explanation

Active transport is not a type of passive transport because it requires energy (ATP) to move molecules against the concentration gradient, which means from low concentration to high concentration.

The net movement of particles from a region of higher concentration to a region of lower concentration is known as:

• Osmosis

• Diffusion

• Active Transport

• Endocytosis

Answer explanation

net movement from higher to lower concentration without invoking energy use or membrane‑specific context, the term diffusion is exactly the definition.

The process by which water molecules move across a selectively permeable membrane from a region of higher water concentration to a region of lower water concentration is called:

• Diffusion

• Osmosis

• Active Transport

• Facilitated diffusion

Which of the following is NOT a factor affecting the rate of diffusion?

• Temperature

• Concentration gradient

• Surface Area

• Mass of particles

Answer explanation

mass isn’t a separate factor you plug into Fick’s Law.  Instead, any effect that molecular mass would have (e.g. heavier molecules moving more slowly)

Active Transport requires:

Answer explanation

active transport requires energy because it must push molecules against their spontaneous direction of movement, and that push comes from ATP (or another energy source) being consumed to change the shape and affinity of transporter proteins.

The process by which large particles are taken into a cell is called:

• Exocytosis

• Endocytosis

• Phagocytosis

• Pinocytosis

Answer explanation

this whole process is specialized for large, solid targets and involves active cytoskeletal rearrangement and vesicle formation, it’s distinctively named phagocytosis.

Which type of Endocytosis involves the engulfment of solid particles by a cell?

• Phagocytosis

• Pinocytosis

• Exocytosis

• Facilitated diffusion

The process by which substances are released from a cell is called:

• Exocytosis

• Endocytosis

• Phagocytosis

• Pinocytosis

Which of the following is NOT a function of the cell membrane?

• Controla the movement of substances into and

• Provides support and protection for the cell

• Produces energy for the cell

• Acts as a barrier between the cell and its environment

The fluid mosaic model describes the structure of the:

• Cell Wall

• Cell membrane

• Nucleus

• Cytoplasm