Biology Chapter 7 Study Guide
Terms in this set (57)
Who was one of the first people to identify and see cork cells?
The work of Schleiden and Schwann can be summarized by saying that?
D. All plants and animals are made of cells
Which of the following is not a principle of the cell theory?
C. Very few cells reproduce
The cell theory applies to
D. All of the above (bacteria, plants and animals, and multicellular organisms)
C. A nucleus
Which of the following contains a nucleus?
Eukaryotes usually contain
D. all of the above (a nucleus, specialized organelles, and genetic material)
Which of the following organisms are prokaryotes?
Which of the following is a function of the nucleus?
D. All of the above (stores DNA, controls most of the cells processes, contains the information needed to make protein)
Which of the following is not found in a nucleus?
Which of the following statements explains why the nucleus is important to cells?
C. The nucleus contains coded instructions for making protein
Which of the following structures is found in the cytoplasm?
Which structure makes proteins using coded instructions that come from the nucleus?
Which organelle converts the chemical energy stored in food into compounds that are more convenient for the cell to use?
Which organelles help provide cells with energy?
A. Mitochondria and chloroplasts
Which sequence correctly traces the path of a protein in the cell?
A. rough endoplasmic reticulum, golgi apparatus, released from cell
Which organelle would you expect to find in plant cells but not animal cells?
Which of the following is a function of a cytoskeleton?
A. helps a cell keep its shape
Which structures carry out cell movement?
C. microtubes and microflaments
The main function of the cell wall is to
A. support and protect the cell
Unlike the cell membrane, the cell wall is
D. usually made up of tough fibers
You will NOT find a cell wall in which of these organisms?
Which of the following structures serves as the cell's boundary from its environment?
B. cell membrane
Which of the following is a function of the cell membrane?
D. regulates which materials enters in and out of the cell
The cell membrane contains channels and pumps that help move materials from one side to the other. What are these channels and pumps made of?
Diffusion occurs because
A. molecules constantly move and collide with each other
Diffusion is the movement of molecules from
B. an area of high concentration to an area of low concentration
When the concentration of molecules on both sides of a membrane is the same, the molecules will
C. move across the membrane in both directions
Which means of particle transport requires input of energy from the cell?
D. active transport
The diffusion of water across a selectively permeable membrane is called?
An animal cell that is surrounded by freshwater will burst because the osmotic pressure causes
A. water to move into the cell
Which term refers to cells have different jobs in an organism?
B. cell specialization
The cells of multicellular organisms are often
C. specialized to perform particular functions
All the following are examples of cell specialization except
C. a prokaryotic cell that carries out photosynthesis
Which of the following is an example of an organ?
A group of similar cells that perform a particular function is called a
An organ system is a group of organs that
C. work together to performs a special functions
Which of the following is an organ of the digestive system?
Which list represents the level of organization in a multicellular organism from the simplest level to the most complex level?
D. cell, tissue, organs, organ system
True or False: If a cell contains a nucleus, it must be a (prokaryote).
True or False: The cell represented in Figure 7-1 is a (eukaryote).
True or false: The assembly of ribosomes begins in a small dense structure called the (chromatin)
True or false: Many membrane proteins are made by the (smooth) endoplasmic recticulum.
True or false:The main function of the (cell wall) is to provide support and protection.
True or False: The (nuclear envelope) regulates which substances enter and leave a cell.
False, cell membrane
True or False: One (equilibrium) is reached, roughly equal numbers of molecules move in either direction across a semipermeable membrane, and there is no further change in concentration on either side of the membrane.
True or false: There is a division of labor among the cells of (multicellular) organisms.
True or false:A typical organ is made up of many different kinds of (cells and tissues)
In a eukaryote, the material between the cell membrane and the nucleus is called the ________.
During cell division, chromatin condenses to form _______, which are threadlike structures containing genetic material.
Unlike smooth endoplasmic reticulum, rough endoplasmic reticulum has _________ attached to it.
Enzymes in the _______________ attach carbohydrates and lipids to proteins.
The cell takes in food and water and eliminates wastes through the
Molecules tend to move from an area where they are more concentrated to an area where they are less concentrated. This process is called
Large molecules such as glucose that cannot cross the lipid bilayer can still move across the membrane with a concentration gradient by
The cells in a multicellular organism have specific jobs. This is called cell
The levels of organization in a multicelluar organism are ________, tissues, ______, and organ systems.
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