Cell Membranes. The Cell Membrane Cell Membrane: At Very High Magnification & in color.
Chapter 4 Review. Vocabulary A plant cell differs from an animal cell because it has a _______...
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Transcript of Chapter 4 Review. Vocabulary A plant cell differs from an animal cell because it has a _______...
Chapter 4 Review
Vocabulary
A plant cell differs from an animal cell because it has a _______ outside of the cell membrane.
Cell Wall
Vocabulary
The basic unit of structure and function for all living things is the _________.
Cell
Vocabulary
The chlorophyll in a ____ gives a plant its green color?
Chloroplast
Vocabulary
Cell activities, including division, are controlled by information in the cell’s ________.
Nucleus
Vocabulary
A set of statements called the _______ describe the basic concepts about cells.
Cell theory
Vocabulary
The group of tissues that works together to perform a special function is called an ________.
Organ
Vocabulary
The living material in the cell, excluding the nucleus, is called ________.
Cytoplasm
Vocabulary
In plants, sun energy is used to make food by the compound __________.
Chlorophyll
Vocabulary
Specialized cells organized to perform a certain function are called __________.
Tissues
Vocabulary
The thin outer covering, or the _________, controls what enters and exits cells.
Cell membrane
Vocabulary
The tiny, special parts of the cell that carry out life processes are called ________.
Organelles
Check Your Knowledge
Explain the statement “some cells are specialized”
Different types of cells perform specific functions for an organism.
Check Your Knowledge
What is one purpose of the cell membrane?
The cell membrane protects the inside of the cell, gives it shape, and helps control materials entering and leaving.
Check Your Knowledge
Where in a cell is the cellulose located?
Cellulose is located in the cell wall.
Check Your Knowledge
List the statements in the cell theory.
All living things are made up of cells. Cells are the basic units of structure and function in living things. All cells come only from other living cells.
Check Your Knowledge
List two organelles and their functions.
Mitochondria-energy source. Ribosomes- proteins makers. Vacuoles- food and water storage. Golgi Bodies- package materials. Lysosomes- break down materials. Endoplasmic Reticulum- transports materials. Chloroplasts- energy source in plant cells. Cell wall- protects plant cells. Cell membrane- see previous slide.
Check Your Knowledge
How did the term “cell” originate?
Cell is the Latin word for “little room”.
Complete the Sentence
The unit of structure for living things is __________.
Cell
Finish the Sentence
Digestive chemicals in ________ break down food, wastes, and old cell parts.
Lysosomes
Finish the Sentence
The _______ protects cells, and controls movement of materials in and out.
Cell membrane
Finish the Sentence
The cell theory states cells come only from __________.
Living cells
Finish the Sentence
To grow skin cells in a laboratory, scientists must provide the cells with the same _____ as as a normal skin cell.
Environment
Finish the Sentence
The first person to observe living cells was probably ______.
van Leeuwenhoek
Finish the Sentence
The cell powerhouses are the _________.
Mitochondria
Finish the Sentence
Your heart is an example of an _______.
Organ
Finish the Sentence
The cell’s information center is the _________.
Nucleus
Check Your Understanding
Where is DNA found in a cell?
The nucleus
Check Your Understanding
What organs make up the circulatory system?
Heart, blood, and a network of blood vessels.
Check Your Understanding
What was an important event that led to the development of the cell theory?
Robert Hooke made microscopes that had two lenses in a metal tube.
Check Your Understanding
What is the process of growing cells in the laboratory called?
Culturing
Check Your Understanding
What is a disadvantage of using TEM microscopes to view living cells?
TEM electron beams produce a vacuum.
Check Your Understanding
What electronic device can help regulate a person’s heart beat if it is too slow or uneven?
Pacemaker
Check Your Understanding
What are the three types of muscle in the human body?
Smooth, muscle, and cardiac
Check Your Knowledge
What is homeostasis?
Homeostasis- ability of a cell to maintain a stable internal environment.
