Table of Contents
Which term describes the movement of water molecules in and out of a cell?
Osmosis and Net Movement of Water Osmosis is the net movement of water across a selectively permeable membrane driven by a difference in solute concentrations on the two sides of the membrane.
Which term identifies the cells ability to maintain its internal conditions?
Which term identifies the cell’s ability to maintain its internal conditions? 93. Which phrase best describes homeostasis? The cell keeps molecules balanced inside and out.
Which term identifies the process used by the cell to bring in large molecules?
It is possible for large molecules to enter a cell by a process called endocytosis, where a small piece of the cell membrane wraps around the particle and is brought into the cell. If the particle is solid, endocytosis is also called phagocytosis.
Which phrase best describes the term homeostasis?
Homeostasis is any self-regulating process by which an organism tends to maintain stability while adjusting to conditions that are best for its survival. If homeostasis is successful, life continues; if it’s unsuccessful, it results in a disaster or death of the organism.
In which process does a portion of the cell membrane folds inward and surround molecules to bring them into the cell?
Pinocytosis
Pinocytosis, or cellular drinking, occurs when the plasma membrane folds inward to form a channel allowing dissolved substances to enter the cell, as shown in the Figure below.
What is the term that describes when the cell uses energy to bring substances inside or outside of the cell?
Endocytosis is a type of active transport that moves particles, such as large molecules, parts of cells, and even whole cells, into a cell.
What cellular structure detects stimuli and sends information to the control center in feedback loop?
The receptor senses environmental stimuli, sending the information to the integrating center. The integrating center, generally a region of the brain called the hypothalamus, signals an effector (e.g. muscles or an organ ) to respond to the stimuli.
What is a molecule cell or organ that carries out a response to a stimulus?
effector. a molecule, cell, or organ that directly carries out a response to a stimulus.
What makes the inside of a cell different from the outside?
Inside or out, most of a cell and its surroundings consists of water in which is dissolved ions, molecules, compounds and macromolecules. What makes the inside of a cell different to the outside of a cell is the quantity and quality of these ions and molecules.
How does homeostasis help cells to function properly?
Homeostasis In order for cells to function properly, conditions inside the cell must stay constant even if outside factors change. Cells must keep the correct amount of nutrients and water and remove wastes. The cell membrane will allow some things to pass through while blocking other things. Cell Processes & Homeostasis
How are Substances transported through the cell membrane?
All substances that move through the membrane do so by one of two general methods, which are categorized based on whether or not energy is required. Passive transport is the movement of substances across the membrane without the expenditure of cellular energy.
Why do cells need to keep their conditions constant?
In order for cells to function properly, conditions inside the cell must stay constant even if outside factors change. Cells must keep the correct amount of nutrients and water and remove wastes. The cell membrane will allow some things to pass through while blocking other things.