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Cells Study Guide Cell Theory 1. What are the 3 parts of the Cell Theory? a. All living things are composed of cells b. Cells are the basic unit of structure and function in living things c. All cells come from pre-existing cells Cell Membrane 2. The cell membrane is Selectively permeable, which means Only certain things can pass in and out 3. What types of things flow into and out of the cell through the membrane? Messengers, waste, nutrients 4. The cell membrane is mainly made of what type of macromolecule? Lipids 5. Its structure is a phospholipid bilayer . 6. What type of macromolecule helps the cell membrane with transporting information? Proteins Diffusion 7. What does concentration mean? the number of molecules of a substance in a given volume

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Page 1: Web viewWhat is the word for when the solution around the cell has the same number of water molecules as inside the ... Solar energy plant: Cholorplast. Town hall

Cells Study Guide

Cell Theory

1. What are the 3 parts of the Cell Theory?

a. All living things are composed of cells

b. Cells are the basic unit of structure and function in living things

c. All cells come from pre-existing cells

Cell Membrane

2. The cell membrane is Selectively permeable, which means Only certain things can pass in and out

3. What types of things flow into and out of the cell through the membrane? Messengers, waste, nutrients

4. The cell membrane is mainly made of what type of macromolecule? Lipids

5. Its structure is a phospholipid bilayer .

6. What type of macromolecule helps the cell membrane with transporting information? Proteins

Diffusion

7. What does concentration mean? the number of molecules of a substance in a given volume

1. Molecules move from High concentration to Low concentration.

2. Diffusion Requires no energy energy.

3. Diffusion is a type of Passive transport.

4. What is the goal of diffusion? Equilibrium

Osmosis

4. Osmosis is a type of diffusion, but only for Water .

Page 2: Web viewWhat is the word for when the solution around the cell has the same number of water molecules as inside the ... Solar energy plant: Cholorplast. Town hall

8. What is osmotic pressure? The force exerted by water

5. In a hypotonic solution, the water will move Into the cell.

6. How do you remember “hypotonic”?

7. In a hypertonic solution, the water will move Out of the cell.

8. How do you remember “hypertonic”?

9. What is the word for when the solution around the cell has the same number of water molecules as inside the cell? Isotonic

Match the parts of the city to the organelles that they would represent. (Its representing a PLANT cell).

Laborers: endoplasmic reticulum

Water tower: Vacuole

Street cleaners: Lysosome

Nuclear power plant: Mitochondria

Post office: Golgi Apparatus

Page 3: Web viewWhat is the word for when the solution around the cell has the same number of water molecules as inside the ... Solar energy plant: Cholorplast. Town hall

Solar energy plant: Cholorplast

Town hall: Nucleus

Factory: Ribosomes

City boundaries: Cell Membrane

Wall of impenetrability: Cell Wall

Types of Active Transport:

Pumps: Uses energy, Pumps from low concentration to high concentration

Endocytosis: Molecules being engulfed into the cell

Exocytosis: Molecules being released from the cell

Phagocytosis: Consumption of large molecules (eating)

Pinocytosis: Consumption of smaller molecules (Liquids, drinking)

Difference between active and passive transport

Active: Requires energy, low to high concentration

Passive: Requires no energy, high to low concentration

Page 4: Web viewWhat is the word for when the solution around the cell has the same number of water molecules as inside the ... Solar energy plant: Cholorplast. Town hall

Is the solution in the beaker hypotonic or hypertonic or isotonic? Where is the water moving in terms of the cell? Identify in each beaker


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