cell structure and function practice
tests questions and answers.
Which type of cell structure is present in prokaryotic and eukaryotic cells? -
Correct Answer -a cell membrane made of a lipid bilayer
Which two types of structures are present in a plant cell, but not in an animal
cell? - Correct Answer -chloroplasts and cell wall
A model shows a molecule entering through a protein pump. Which type of cell
transport is being modeled? - Correct Answer -active transport, because protein
pumps are needed to move substances against a concentration difference
Which of the following is a way that multicellular organisms can maintain
homeostasis but unicellular organisms cannot? - Correct Answer -the cells of
multicellular organisms can differentiate into specialized cells
Cell 1 has DNA in the cytoplasm, does not have mitochondria, and has a cell
wall. Cell 2 has DNA located in the nucleus, mitochondria is present, and does
not have a cell wall. What conclusion about the cells does the data in the table
support? - Correct Answer -cell 1 is prokaryotic; cell 2 is from an animal.
According to the cell theory, what is the source of all new cells? - Correct Answer
-pre-existing cells
, Which of the following structures occurs in cells of all types, including
prokaryotic cells and eukaryotic cells? - Correct Answer -a cell membrane made
of a lipid bilayer
Nayla plans to study red blood cells in a liquid suspension, similar to blood
plasma. To observe the greatest variety of osmotic activity, she should test the
effect of which independent variables? - Correct Answer -salt concentration of
the liquid that surrounds the red blood cells
One plant receives sufficient water and has straight upright stems and firm
leaves. One plant was grown is dry soil and has wilted stems and leaves. When
the cells are examined under a microscope, which organelle will display the
greatest difference between the two plants? - Correct Answer -the central
vacuole, because it stores water and provides support
Which is a property of all unicellular organisms, but not all multicellular
organisms? - Correct Answer -cells can survive independently of one another
There is a barrier which is permeable to water but not to sugar between two
sides. In Side A there is a lower concentration of sugar molecules and in Side B
there is a higher concentration of sugar molecules. What is likely to be observed?
- Correct Answer -water molecules will move from Side A to Side B. the solution
level on Side A will fall and the solution level on Side B will rise.
types of passive transport - Correct Answer -diffusion, facilitated diffusion,
osmosis
tests questions and answers.
Which type of cell structure is present in prokaryotic and eukaryotic cells? -
Correct Answer -a cell membrane made of a lipid bilayer
Which two types of structures are present in a plant cell, but not in an animal
cell? - Correct Answer -chloroplasts and cell wall
A model shows a molecule entering through a protein pump. Which type of cell
transport is being modeled? - Correct Answer -active transport, because protein
pumps are needed to move substances against a concentration difference
Which of the following is a way that multicellular organisms can maintain
homeostasis but unicellular organisms cannot? - Correct Answer -the cells of
multicellular organisms can differentiate into specialized cells
Cell 1 has DNA in the cytoplasm, does not have mitochondria, and has a cell
wall. Cell 2 has DNA located in the nucleus, mitochondria is present, and does
not have a cell wall. What conclusion about the cells does the data in the table
support? - Correct Answer -cell 1 is prokaryotic; cell 2 is from an animal.
According to the cell theory, what is the source of all new cells? - Correct Answer
-pre-existing cells
, Which of the following structures occurs in cells of all types, including
prokaryotic cells and eukaryotic cells? - Correct Answer -a cell membrane made
of a lipid bilayer
Nayla plans to study red blood cells in a liquid suspension, similar to blood
plasma. To observe the greatest variety of osmotic activity, she should test the
effect of which independent variables? - Correct Answer -salt concentration of
the liquid that surrounds the red blood cells
One plant receives sufficient water and has straight upright stems and firm
leaves. One plant was grown is dry soil and has wilted stems and leaves. When
the cells are examined under a microscope, which organelle will display the
greatest difference between the two plants? - Correct Answer -the central
vacuole, because it stores water and provides support
Which is a property of all unicellular organisms, but not all multicellular
organisms? - Correct Answer -cells can survive independently of one another
There is a barrier which is permeable to water but not to sugar between two
sides. In Side A there is a lower concentration of sugar molecules and in Side B
there is a higher concentration of sugar molecules. What is likely to be observed?
- Correct Answer -water molecules will move from Side A to Side B. the solution
level on Side A will fall and the solution level on Side B will rise.
types of passive transport - Correct Answer -diffusion, facilitated diffusion,
osmosis
