Biology I Midterm Review
This test is a review for the Biology I Midterm.
Questions and Answers
- 1.
When diluting an acid: add _____________ to _____________.
- A.
Water acid
- B.
Acid water
Correct Answer
B. Acid waterExplanation
When diluting an acid, it is important to add the acid to water rather than adding water to the acid. This is because adding water to acid can cause a violent reaction due to the exothermic nature of the reaction. By adding the acid to water slowly and carefully, the heat generated can be dissipated more effectively, reducing the risk of splashing or boiling of the mixture.Rate this question:
-
- 2.
The first thing to do in case of a fire is to shut off the main gas switch.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
In case of a fire, shutting off the main gas switch is crucial for safety reasons. This helps prevent the risk of a gas leak or explosion, which can worsen the fire and endanger lives. By turning off the gas supply, the fuel source for the fire is eliminated, making it easier to control and extinguish the flames. It is important to prioritize the safety of individuals and property in such emergency situations, and shutting off the main gas switch is an essential step in fire safety protocols.Rate this question:
-
- 3.
It is okay to lean over an open flame.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
It is not okay to lean over an open flame because it can be dangerous. Leaning over an open flame increases the risk of getting burnt or catching clothing on fire. It is important to maintain a safe distance from open flames to prevent accidents and injuries.Rate this question:
-
- 4.
It is okay to "experiment" with chemicals to see what happens.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Experimenting with chemicals without proper knowledge, training, and safety precautions can be extremely dangerous. Chemical reactions can be unpredictable, leading to explosions, fires, or the release of toxic gases. It is important to follow proper protocols, use appropriate protective equipment, and conduct experiments in a controlled environment to ensure the safety of oneself and others. Therefore, it is not okay to experiment with chemicals without proper knowledge and precautions in place.Rate this question:
-
- 5.
The eye wash is used when there is a chemical spill or fumes in the eyes.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The eye wash is used when there is a chemical spill or fumes in the eyes. This is because chemicals can cause irritation, burns, or damage to the eyes, and immediate rinsing with an eye wash solution can help flush out the chemicals and minimize the potential harm. Eye wash stations are typically equipped with a gentle stream of water or saline solution that can be used to rinse the eyes thoroughly. It is important to use eye wash promptly in such situations to prevent further injury and seek medical attention if necessary.Rate this question:
-
- 6.
A student wants to view cells under the compound microscope at a total magnification of 400X. If the eyepiece is 10X, which of the following objective lenses should be used?
- A.
10X
- B.
40X
- C.
100X
- D.
400X
Correct Answer
B. 40XExplanation
To achieve a total magnification of 400X, the student needs to multiply the magnification of the eyepiece (10X) with the magnification of the objective lens. Since the eyepiece is already 10X, the objective lens should have a magnification of 40X (10X multiplied by 40X equals 400X). Therefore, the student should use the 40X objective lens.Rate this question:
-
- 7.
Orchids were studied to determine if the amount of humidity affected the flowering of these plants. Which of these was the independent variable in this study?
- A.
Amount of Humidity
- B.
Kinds of Orchids
- C.
Location of Orchids
Correct Answer
A. Amount of HumidityExplanation
The independent variable in this study was the amount of humidity. This means that the researchers manipulated or controlled the levels of humidity in order to observe its effect on the flowering of orchids. The other options, kinds of orchids and location of orchids, are not being intentionally manipulated by the researchers in this study.Rate this question:
-
- 8.
6CO2 + 6H2O =Light= C6H12O6 + 6O2That is the chemical equation for what?
- A.
Photosynthesis
- B.
Protein Production
Correct Answer
A. pHotosynthesisExplanation
The given chemical equation represents the process of photosynthesis. Photosynthesis is the process by which plants, algae, and some bacteria convert carbon dioxide and water into glucose (C6H12O6) and oxygen (O2) using light energy. This equation shows the balanced chemical reaction that occurs during photosynthesis, where carbon dioxide and water are transformed into glucose and oxygen in the presence of light.Rate this question:
-
- 9.
Chemical analysis indicates that the cell membrane is composed of mainly.....
- A.
Proteins
- B.
Lipids
- C.
Proteins and lipids
Correct Answer
C. Proteins and lipidsExplanation
The cell membrane is composed of mainly proteins and lipids. This is because proteins and lipids are the two main components of the cell membrane. Proteins are responsible for various functions in the cell membrane such as transport of molecules, cell signaling, and cell adhesion. Lipids, on the other hand, form a lipid bilayer that provides a barrier and regulates the passage of molecules in and out of the cell. Therefore, both proteins and lipids are essential for the structure and function of the cell membrane.Rate this question:
-
- 10.
Plant cells differ from animal cells in that they have what structure made of cellulose?
- A.
Cell Walls
- B.
Cell Membranes
- C.
Vacuoles
Correct Answer
A. Cell WallsExplanation
Plant cells differ from animal cells in that they have cell walls made of cellulose. Cell walls provide structural support and protection to plant cells, allowing them to maintain their shape and withstand external pressures. They also regulate the movement of substances in and out of the cell, contributing to the overall functioning of the plant. In contrast, animal cells do not have cell walls; instead, they have cell membranes that serve a similar purpose but are composed of different materials. Vacuoles, on the other hand, are present in both plant and animal cells but do not contribute to the main difference between the two.Rate this question:
-
- 11.
Controls what materials move in and out of the cell
- A.
Cell Membrane
- B.
Cell Wall
Correct Answer
A. Cell MembraneExplanation
The cell membrane controls what materials move in and out of the cell. It is a semi-permeable barrier that allows certain substances to pass through while preventing others from entering or leaving the cell. This selective permeability is crucial for maintaining homeostasis and regulating the internal environment of the cell. The cell wall, on the other hand, provides structural support and protection to the cell, but it does not have a role in controlling the movement of materials in and out of the cell.Rate this question:
-
- 12.
Cell Theory:1) All living things are made of cells2) Cells are the basic unit of life3) All cells come from pre-existing cells
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The cell theory states that all living things are made of cells, cells are the basic unit of life, and all cells come from pre-existing cells. This means that every living organism, from plants to animals, is composed of cells. These cells are the smallest functional and structural units of life and are capable of carrying out all the necessary functions for an organism to survive. Additionally, new cells are constantly being produced through cell division, ensuring the growth and repair of tissues and the continuation of life. Therefore, the statement "True" accurately reflects the principles of the cell theory.Rate this question:
-
- 13.
Theodor Schwann
- A.
Invented the first microscope
- B.
Concluded all animals are made of cells
- C.
Concluded all cells come from other cells
- D.
Viewed cork under a microscope and saw the first cells
- E.
Concluded all plants are made of cells
Correct Answer
B. Concluded all animals are made of cellsExplanation
The correct answer is "concluded all animals are made of cells." Theodor Schwann made significant contributions to the cell theory, which states that all living organisms are composed of cells. He conducted experiments and observations that led him to conclude that animals, like plants, are also made up of cells. This discovery was a crucial step in the development of our understanding of cells and their role in living organisms.Rate this question:
-
- 14.
Anton van Leeuwenhoek
- A.
Invented first microscope
- B.
Concluded all animals are made of cells
- C.
Concluded all cells come from other cells
- D.
Viewed cork under a microscope and saw the first cells
- E.
Concluded all plants are made of cells
Correct Answer
A. Invented first microscopeExplanation
Anton van Leeuwenhoek is credited with inventing the first microscope. This invention allowed him to view objects at a microscopic level, leading to groundbreaking discoveries in the field of biology. Although he did not specifically conclude that all animals are made of cells or that all cells come from other cells, his observations using the microscope did contribute to the understanding of the cellular structure of organisms. Additionally, while he did not mention viewing cork under a microscope and seeing the first cells, he did make significant contributions to the study of cells, including his observations of microorganisms in various samples.Rate this question:
-
- 15.
Robert Virchow
- A.
Invented first microscope
- B.
Concluded all animals are made of cells
- C.
Concluded all cells come from other cells
- D.
Viewed cork under a microscope and saw the first cells
- E.
Concluded all plants are made of cells
Correct Answer
C. Concluded all cells come from other cellsExplanation
Robert Virchow concluded that all cells come from other cells. This conclusion is based on his observations and experiments, which led him to reject the previously accepted theory of spontaneous generation. Virchow's studies showed that cells are the fundamental units of life and that they can only arise from pre-existing cells. This concept, known as cell theory, is a fundamental principle in biology and has had a significant impact on our understanding of the structure and function of living organisms.Rate this question:
-
- 16.
Matthias Schleiden
- A.
Invented first microscope
- B.
Concluded all animals are made of cells
- C.
Concluded all cells come from other cells
- D.
Viewed cork under a microscope and saw the first cells
- E.
Concluded all plants are made of cells
Correct Answer
E. Concluded all plants are made of cellsExplanation
Matthias Schleiden concluded that all plants are made of cells. This conclusion was based on his observations and research, where he likely examined various plant tissues under a microscope. By studying the structure and organization of these tissues, he would have observed that they were composed of individual cells. This discovery contributed to the development of the cell theory, which states that all living organisms are composed of cells.Rate this question:
-
- 17.
Robert Hooke
- A.
Invented first microscope
- B.
Concluded all animals are made of cells
- C.
Concluded all cells come from other cells
- D.
Viewed cork under a microscope and saw the first cells
- E.
Concluded all plants are made of cells
Correct Answer
D. Viewed cork under a microscope and saw the first cellsExplanation
Robert Hooke viewed cork under a microscope and saw the first cells. This observation led him to conclude that all animals are made of cells and all plants are made of cells. He also concluded that cells come from other cells, which laid the foundation for the cell theory. Hooke's discovery of cells and his conclusions about their existence and function were groundbreaking in the field of biology and have had a significant impact on our understanding of life.Rate this question:
-
- 18.
Are all cells alike?
- A.
Yes
- B.
No
Correct Answer
B. NoExplanation
Cells are not all alike because there are different types of cells in the human body, each with their own unique structure and function. For example, nerve cells are responsible for transmitting signals, while muscle cells are involved in movement. Additionally, cells can vary in size, shape, and specialized features depending on their specific role in the body. Therefore, the statement "Are all cells alike?" is incorrect.Rate this question:
-
- 19.
Unicellular??
- A.
1 cell
- B.
2+ cells
Correct Answer
A. 1 cellExplanation
The correct answer is "1 cell" because unicellular organisms are composed of only one cell. They do not have specialized tissues or organs like multicellular organisms. Unicellular organisms carry out all their life processes within this single cell, including reproduction, metabolism, and response to stimuli. Examples of unicellular organisms include bacteria, protozoa, and some types of algae.Rate this question:
-
- 20.
Mullticellular?
- A.
1 cell
- B.
2+ cells
Correct Answer
B. 2+ cellsExplanation
Multicellular refers to an organism that is composed of more than one cell. The correct answer, "2+ cells," accurately describes multicellularity as it indicates that the organism consists of two or more cells. This implies that the organism is made up of multiple specialized cells that work together to perform various functions and make up different tissues and organs.Rate this question:
-
Quiz Review Timeline +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
-
Current Version
-
Mar 21, 2023Quiz Edited by
ProProfs Editorial Team -
Jan 23, 2010Quiz Created by
Bulldawg012
- Anatomy Quizzes
- Bacteria Quizzes
- Bio Quizzes
- Biological Evolution Quizzes
- Biology Exam Quizzes
- Biology Test Quizzes
- Cell Quizzes
- Cell Biology Quizzes
- Chapters Of Biology Quizzes
- Classical Conditioning Quizzes
- Conservation Biology Quizzes
- Enzyme Quizzes
- Fungi Quizzes
- General Biology Quizzes
- Genetics Quizzes
- Immunology Quizzes
- Macromolecule Quizzes
- Marine Biology Quizzes
- Microbiology Quizzes
- Mitosis And Meiosis Quizzes
- Parasitology Quizzes
- Prokaryote Quizzes
- Protist And Fungi Quizzes
- Protozoa Quizzes
- Respiratory Quizzes
- Spine Quizzes
- Stem Cell Quizzes
- Taxonomy Quizzes
- Traits Quizzes
- Ultimate Biology Quizzes
- Virus Quizzes
Back to top