Biology Chapter 3: Cell Movement

Kinetic energy

False (B)

<p>Water moves into the cells of a plant in a dilute solution. (C)</p> Signup and view all the answers

<p>Temperature, concentration gradient, surface area of membranes, and distance</p> Signup and view all the answers

<p>Temperature = The higher the difference in concentration between two areas, the faster the rate of diffusion. Concentration gradient = The greater the surface area through which molecules can pass, the faster the rate of diffusion. Surface area of membranes = Higher temperatures increase the kinetic energy of molecules, leading to faster diffusion. Distance = The rate of diffusion is slower over longer distances.</p> Signup and view all the answers

<p>Osmosis</p> Signup and view all the answers

<p>Partially permeable membrane (B)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>The cell swells and may burst.</p> Signup and view all the answers

<p>The cell shrinks and shrivels up.</p> Signup and view all the answers

<p>Isotonic solution</p> Signup and view all the answers

<p>The cell swells and becomes turgid.</p> Signup and view all the answers

<p>The cell shrinks and becomes flaccid, it may even plasmolyse.</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>Active transport</p> Signup and view all the answers

<p>Movement of oxygen from the lungs to the blood. (B)</p> Signup and view all the answers

The movement of molecules or ions from a region of higher concentration to a region of lower concentration, along the concentration gradient.

The energy source for diffusion.

The process in which carbon dioxide needed for photosynthesis enters leaves through stomata.

The process in which oxygen produced during photosynthesis diffuses out of leaves through stomata.

The process in which carbon dioxide, produced as a waste product of respiration, diffuses out of leaves during the night.

The process in which oxygen diffuses into leaves at night to be used in respiration.

The movement of oxygen and carbon dioxide between the lungs and blood.

The absorption of digested food in the ileum (small intestine).

An increase in temperature increases the kinetic energy of molecules, leading to a faster rate of diffusion.

A larger concentration difference between two areas results in a faster rate of diffusion.

Larger surface areas allow for faster diffusion rates.

Shorter distances lead to faster diffusion rates.

The net movement of water molecules from a region of higher water potential (dilute solution) to a region of lower water potential (concentrated solution), across a partially permeable membrane.

The potential energy of water to move from one area to another.

A membrane that allows some substances to pass through but not others.

The movement of water into a cell due to a higher water potential outside the cell.

The movement of water out of a cell due to a lower water potential outside the cell.

The pressure exerted by the cell contents against the cell wall.

A plant cell that is swollen and firm due to water intake.

A plant cell that has lost water and become limp.

The process in which the cell membrane pulls away from the cell wall due to water loss.

The absorption of water by root hair cells from the soil due to a higher water potential in the soil.

The movement of molecules and ions across a cell membrane against their concentration gradient, using energy from respiration.

Special proteins embedded in the cell membrane that transport molecules against their concentration gradient.

The absorption of nitrates from the soil by root hair cells.

The absorption of glucose from the small intestine into the bloodstream.

The reabsorption of glucose from the renal tubules back into the bloodstream.