Biology Chapter 3-4 Review
Quiz based on study guide
Questions and Answers
- 1.
Which is not part of the cell theory?
- A.
Living things are made of cells
- B.
Cells come from existing cells
- C.
Cells are the smallest particle of matter
- D.
Cells are the basic unit of structure and function in living things
Correct Answer
C. Cells are the smallest particle of matterExplanation
The cell theory states that living things are made of cells, cells come from existing cells, and cells are the basic unit of structure and function in living things. However, cells are not the smallest particle of matter. There are smaller particles such as atoms and molecules that make up cells.Rate this question:
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- 2.
Select the characteristics of life
- A.
Heredity
- B.
Reproduction
- C.
Death
- D.
Responsiveness
- E.
Metabolism
- F.
Stems
- G.
Growth/Development
- H.
Homeostatis
- I.
Cells
Correct Answer(s)
A. Heredity
B. Reproduction
D. Responsiveness
E. Metabolism
G. Growth/Development
H. Homeostatis
I. CellsExplanation
The characteristics of life include heredity, reproduction, responsiveness, metabolism, growth/development, homeostasis, and cells. Heredity refers to the passing of traits from parents to offspring. Reproduction is the ability to produce offspring. Responsiveness is the ability to respond to stimuli in the environment. Metabolism is the process of obtaining and using energy. Growth/development refers to the increase in size and complexity of an organism. Homeostasis is the ability to maintain a stable internal environment. Cells are the basic structural and functional units of all living organisms.Rate this question:
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- 3.
What is the job of ribosomes?
- A.
Making proteins
- B.
Storing water, waste, and other nutrients
- C.
To support the cell
- D.
Containing DNA
Correct Answer
A. Making proteinsExplanation
Ribosomes are responsible for making proteins in a cell. They are small, spherical organelles that are found either floating freely in the cytoplasm or attached to the endoplasmic reticulum. Ribosomes read the genetic information stored in the DNA and use it to synthesize proteins through a process called translation. This process involves linking amino acids together to form a polypeptide chain, which eventually folds into a functional protein. Proteins are essential for various cellular functions, including enzyme catalysis, structural support, cell signaling, and transportation of molecules. Therefore, the job of ribosomes is to produce proteins, making them crucial for the proper functioning of cells.Rate this question:
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- 4.
Which is not found in plants only?
- A.
Chloroplasts
- B.
Nucleus
- C.
Central Vacuole
- D.
Cell Wall
Correct Answer
B. NucleusExplanation
The nucleus is not found in plants only. The nucleus is a membrane-bound organelle that contains the genetic material of a cell and is found in both plant and animal cells. It is responsible for controlling all the activities of the cell and is essential for cell division and reproduction.Rate this question:
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- 5.
What are the role of mitochondria?
- A.
Stores water
- B.
Converts food to energy
- C.
Jelly-like goo in cell
- D.
Makes food using sunlight
Correct Answer
B. Converts food to energyExplanation
Mitochondria are organelles found in cells that play a crucial role in energy production. They are often referred to as the "powerhouses" of the cell because they convert nutrients from food into a form of energy called ATP (adenosine triphosphate) through a process called cellular respiration. This energy is then used by the cell to carry out various functions and processes necessary for survival. Therefore, the statement "Converts food to energy" accurately describes the role of mitochondria.Rate this question:
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- 6.
What is role of the vacuole?
- A.
Converts sun to food
- B.
Provides structure and support
- C.
Converts food to energy
- D.
Stores water, waste, nutrients, ect.
Correct Answer
D. Stores water, waste, nutrients, ect.Explanation
The vacuole plays a crucial role in storing various substances such as water, waste, nutrients, and other molecules within a cell. It helps maintain the cell's internal pressure, stores essential nutrients and ions, and facilitates the removal of waste products. Additionally, the vacuole contributes to maintaining the cell's shape and structure by exerting pressure against the cell wall. Therefore, the correct answer is that the vacuole stores water, waste, nutrients, etc.Rate this question:
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- 7.
What is the role of the cell membrane?
- A.
Makes proteins
- B.
Converts food to energy
- C.
Controls what enters/exits cell
- D.
Structure and support provider
Correct Answer
C. Controls what enters/exits cellExplanation
The cell membrane plays a crucial role in controlling what enters and exits the cell. It acts as a barrier, selectively allowing certain substances to pass through while blocking others. This process, known as selective permeability, is essential for maintaining the internal environment of the cell and regulating the movement of molecules and ions. By controlling what enters and exits the cell, the membrane helps to maintain homeostasis and ensure proper functioning of the cell.Rate this question:
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- 8.
What does the Golgi apparatus do?
- A.
Processes, packages, and secretes proteins
- B.
Controls what enters/exits cell
- C.
Makes food
- D.
Contains DNA
Correct Answer
A. Processes, packages, and secretes proteinsExplanation
The Golgi apparatus is responsible for processing, packaging, and secreting proteins. It receives proteins from the endoplasmic reticulum and modifies them by adding sugars and lipids. It then packages the proteins into vesicles and directs them to their final destinations either within the cell or outside of it. This process ensures that proteins are properly sorted and transported to where they are needed in the cell or released outside of the cell to perform their functions.Rate this question:
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- 9.
What do chloroplasts do?
- A.
Turn food into energy
- B.
Clone itself
- C.
Uses the sun's light to make food
- D.
Give a plant color
Correct Answer
C. Uses the sun's light to make foodExplanation
Chloroplasts are responsible for photosynthesis, the process by which plants convert sunlight into energy in the form of glucose. This process involves capturing the sun's light energy and using it to combine carbon dioxide and water to produce glucose and oxygen. Chloroplasts contain pigments, such as chlorophyll, which give plants their green color and enable them to absorb sunlight. Therefore, the correct answer is that chloroplasts use the sun's light to make food.Rate this question:
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- 10.
What is the job of the nucleus?
- A.
Contains DNA (chromosomes)
- B.
Uses turgor pressure
- C.
Use energy (ATP) to perform life processes
- D.
Stores food
Correct Answer
A. Contains DNA (chromosomes)Explanation
The job of the nucleus is to contain DNA (chromosomes). The nucleus is the control center of the cell and houses the genetic material that carries instructions for the cell's activities and development. DNA is organized into chromosomes within the nucleus, and it plays a crucial role in genetic inheritance and protein synthesis.Rate this question:
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- 11.
The central vacuole are like the vacuole except in the...
- A.
Bacteria
- B.
Plant
- C.
Animal
- D.
Dog
Correct Answer
B. PlantExplanation
The central vacuole is a unique feature found in plant cells. It is different from vacuoles in bacteria, animals, and dogs. In plant cells, the central vacuole is the largest organelle and occupies most of the cell's volume. It functions to store water, nutrients, and waste products, maintain turgor pressure, and regulate cell size. Therefore, the correct answer is plant.Rate this question:
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- 12.
Cytoplasm is...
- A.
The plasma that's blue
- B.
The section that contains cyanide
- C.
The liquid in a cell that gets released during photosynthesis
- D.
The goo-like substance in the cell
Correct Answer
D. The goo-like substance in the cellExplanation
The correct answer is "The goo-like substance in the cell." This is because cytoplasm is a jelly-like substance that fills the cell and surrounds the organelles. It is responsible for providing support to the cell and facilitating various cellular processes.Rate this question:
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- 13.
What does the cell wall do?
- A.
Provides structure and support to the plant cell
- B.
Provides structure and support to the animal cell
- C.
Provides support to other cells
- D.
Provides turgor pressure
Correct Answer
A. Provides structure and support to the plant cellExplanation
The cell wall provides structure and support to the plant cell. It is a rigid layer that surrounds the cell membrane and gives the cell its shape and stability. The cell wall is made up of cellulose, a complex carbohydrate that provides strength and protection to the cell. It also helps to prevent the cell from bursting or collapsing under pressure. In contrast, animal cells do not have a cell wall, but instead have a flexible cell membrane that provides support and protection.Rate this question:
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- 14.
Which characteristic of life listed here does a virus not have?
- A.
Heredity
- B.
Responsiveness
- C.
Metabolism
- D.
Reproduction
Correct Answer
C. MetabolismExplanation
A virus does not have metabolism. Metabolism refers to the chemical processes that occur within an organism to maintain life. Unlike living organisms, viruses do not possess the machinery necessary for metabolic activities. They rely on host cells to reproduce and carry out essential functions, making them dependent on the host's metabolism. Therefore, while viruses can exhibit characteristics like heredity, responsiveness, and reproduction, they lack the ability to carry out metabolic processes independently.Rate this question:
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- 15.
Viruses can reproduce with the assistance of a...
- A.
Host
- B.
Other virus
- C.
Friend
- D.
White blood cell
Correct Answer
A. HostExplanation
Viruses are parasitic microorganisms that require a host cell to reproduce and multiply. They invade the host cell and use its machinery to replicate their genetic material and produce new virus particles. Without a host, viruses cannot carry out these processes and cannot reproduce. Therefore, the correct answer is "Host."Rate this question:
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- 16.
What do viruses lack?
- A.
Homeostatis
- B.
Metabolism
- C.
Cell structure
- D.
Growth/Development
- E.
All of the above
Correct Answer
E. All of the aboveExplanation
Viruses lack homeostasis, metabolism, cell structure, and growth/development. Homeostasis refers to the ability to maintain a stable internal environment, which viruses cannot do as they rely on host cells for replication. Metabolism involves the chemical processes that occur within an organism, and viruses do not possess the necessary cellular machinery for metabolic activities. Viruses also lack a typical cell structure, as they are composed of genetic material enclosed in a protein coat. Lastly, viruses do not grow or develop like living organisms do. Therefore, the correct answer is that viruses lack all of the above characteristics.Rate this question:
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- 17.
If a substance travels to a place of low concentration inside a cell to a place of high concentration outside of a cell, what type of transport happens?
- A.
Passive
- B.
Active
- C.
Osmosis
- D.
Diffusion
Correct Answer
B. ActiveExplanation
Active transport occurs when a substance moves from an area of low concentration to an area of high concentration, which is the opposite of passive transport. This process requires the input of energy in the form of ATP to move molecules against their concentration gradient. Therefore, the correct answer is active transport.Rate this question:
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- 18.
If a substance travels to a place of high concentration outside a cell to a place of low concentration inside of a cell, what type of transport happens?
- A.
Passive
- B.
Active
- C.
Osmosis
- D.
Diffusion
Correct Answer
A. PassiveExplanation
Passive transport occurs when a substance moves from an area of high concentration to an area of low concentration without the input of energy. In this scenario, the substance is moving from a place of high concentration outside the cell to a place of low concentration inside the cell, which is a classic example of passive transport.Rate this question:
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- 19.
In an isotonic solution, which direction is the flow of osmosis going to go?
- A.
Left
- B.
Right
- C.
Stay the same
- D.
Both directions
Correct Answer
D. Both directionsExplanation
In an isotonic solution, the concentration of solutes is the same inside and outside the cell. This means that there is no net movement of water molecules across the cell membrane, resulting in an equal flow of osmosis in both directions. Therefore, the flow of osmosis will go in both directions in an isotonic solution.Rate this question:
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- 20.
In a hypotonic solution inside of the cell to a hypertonic solution outside of the cell, which direction is the flow of osmosis going to go?
- A.
Left
- B.
Right
- C.
Stay the same
- D.
Both directions
Correct Answer
B. RightExplanation
In a hypotonic solution inside the cell to a hypertonic solution outside the cell, the flow of osmosis is going to go from the hypotonic solution to the hypertonic solution. This is because osmosis is the movement of water molecules from an area of lower solute concentration (hypotonic) to an area of higher solute concentration (hypertonic) through a selectively permeable membrane. Therefore, the water molecules will move from the hypotonic solution inside the cell to the hypertonic solution outside the cell in order to equalize the solute concentration on both sides of the membrane.Rate this question:
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- 21.
Which is not an example of active transport?
- A.
Sodium-potassium pumps
- B.
Endocytosis
- C.
Osmosis
- D.
Exocytosis
Correct Answer
C. OsmosisExplanation
Osmosis is not an example of active transport because it is a passive process that does not require energy expenditure by the cell. Osmosis is the movement of water molecules across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration. In contrast, active transport processes such as sodium-potassium pumps, endocytosis, and exocytosis require the cell to expend energy in order to transport molecules or particles against their concentration gradient.Rate this question:
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- 22.
Which is not an example of passive transport?
- A.
Osmosis
- B.
Facilitated diffusion
- C.
Ion channel
- D.
Endocytosis
Correct Answer
D. EndocytosisExplanation
Endocytosis is not an example of passive transport because it requires energy in the form of ATP to transport molecules or particles into the cell. Passive transport, on the other hand, does not require energy and occurs spontaneously down a concentration gradient. Osmosis, facilitated diffusion, and ion channels are all examples of passive transport as they involve the movement of molecules or ions across a membrane without the need for energy input.Rate this question:
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- 23.
Why does active transport occur?
- A.
The substance is moving with the concentration gradient
- B.
The substance is moving away the concentration gradient
- C.
The substance is moving against the concentration gradient
- D.
The substance is not moving
Correct Answer
C. The substance is moving against the concentration gradientExplanation
Active transport occurs when a substance is moved against its concentration gradient. This means that the substance is being transported from an area of lower concentration to an area of higher concentration. This process requires the use of energy, usually in the form of ATP, to pump the substance across the cell membrane. Active transport is important for maintaining proper concentrations of ions and molecules inside and outside of cells, and it allows cells to accumulate substances that are needed in higher concentrations than what is available in their environment.Rate this question:
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Mar 21, 2023Quiz Edited by
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Jan 10, 2012Quiz Created by
Ben49424
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