Honors Biology Exam Quiz
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Are you ready for the Honors biology exam practice quiz? The Bachelor of Science Honors in Biology degree course gives complete training in the studies of organisms as well as their relationship to their environment. In this quiz, we will test your knowledge of biology. The test will be a way for you to practice as well. You will be learning about different organisms with these fun questions. All the best to you.
- 1.
Which of the following is NOT an end product of photosynthesis?
- A.
Oxygen
- B.
Water
- C.
Glucose
- D.
Starch
Correct Answer
D. StarchExplanation
Starch is not an end product of photosynthesis. During photosynthesis, plants convert sunlight, water, and carbon dioxide into glucose and oxygen. Glucose is the main product of photosynthesis and is used by plants as a source of energy. Some of the glucose produced is converted into starch, which serves as a storage form of energy in plants. However, starch is not directly produced during photosynthesis and is not considered an end product.Rate this question:
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- 2.
Which of the following is NOT a factor that affects photosynthesis?
- A.
Light
- B.
Soil fertility
- C.
Carbon dioxide concentration
- D.
Temperature
Correct Answer
B. Soil fertilityExplanation
Soil fertility is not a factor that affects photosynthesis. Photosynthesis is the process by which plants convert sunlight, carbon dioxide, and water into glucose and oxygen. Light is necessary for photosynthesis to occur as it provides the energy needed for the process. Carbon dioxide concentration is also important as it is one of the raw materials required for photosynthesis. Temperature affects the rate of photosynthesis, as enzymes involved in the process have optimal temperature ranges. However, soil fertility, which refers to the nutrient content and composition of the soil, does not directly impact photosynthesis.Rate this question:
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- 3.
It is thought that the path to the development of living things began when...
- A.
Lightening struck the Earth
- B.
The earth was showered with various useful molecules
- C.
Molecules of non-living matter reacted chemically
- D.
The Big Bang occurred
- E.
Molecules of living matter reacted physically
Correct Answer
C. Molecules of non-living matter reacted chemicallyExplanation
The correct answer is "molecules of non-living matter reacted chemically." This answer suggests that the development of living things started when molecules of non-living matter underwent chemical reactions. This process could have led to the formation of more complex molecules, eventually giving rise to the first living organisms. This explanation aligns with the theory of abiogenesis, which proposes that life originated from non-living matter through chemical reactions.Rate this question:
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- 4.
Photosynthesis in what organisms originally formed the oxygen that became the ozone in Earth's atmosphere?
- A.
Archaebacteria
- B.
Arthropods
- C.
Cyanobacteria
- D.
Mycorrhizae
Correct Answer
C. CyanobacteriaExplanation
Cyanobacteria are believed to be the organisms that originally formed the oxygen that became the ozone in Earth's atmosphere through photosynthesis. Cyanobacteria are capable of carrying out oxygenic photosynthesis, which involves the conversion of sunlight, water, and carbon dioxide into oxygen and glucose. This process is thought to have been responsible for the accumulation of oxygen in the atmosphere, leading to the formation of the ozone layer.Rate this question:
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- 5.
Today, whales still have small hind limb structures, which are now barely there but were once used as back legs on land. Its evidence of an evolutionary past. This is an example of a:
- A.
Vestigial structure
- B.
Homologous structure
- C.
Analogous structure
- D.
Evolutionary fission
Correct Answer
A. Vestigial structureExplanation
The given correct answer is "vestigial structure." This is because the passage mentions that whales still have small hind limb structures, which were once used as back legs on land. These structures are now barely there and serve no purpose in the water, indicating that they have become reduced and functionless over time. This is a classic example of a vestigial structure, which is a remnant of an organ or structure that was functional in an ancestor but is no longer useful in the current organism.Rate this question:
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- 6.
What is a binomial nomenclature? (hint: there is more than one possible answer)
- A.
Two-word system for naming organisms
- B.
Scientific name
- C.
Carl Linnaeus's idea
- D.
Has more than 3 words describing an organism
Correct Answer(s)
A. Two-word system for naming organisms
B. Scientific name
C. Carl Linnaeus's ideaExplanation
Binomial nomenclature is a system developed by Carl Linnaeus for naming organisms using two words, the genus and species name. This system, also known as scientific name, helps to provide a standardized and universally recognized way to identify and classify different species. The use of two words, rather than more than three, simplifies the naming process and allows for easier communication and organization in the field of biology.Rate this question:
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- 7.
Which role is NOT performed by bacteria in the nitrogen cycle?
- A.
Fixing nitrogen
- B.
Changing urea to ammonia
- C.
Turning nitrates into nitrogen gas
- D.
Changing nitrates to ammonia
Correct Answer
B. Changing urea to ammoniaExplanation
Bacteria play important roles in the nitrogen cycle, including fixing nitrogen, turning nitrates into nitrogen gas, and changing nitrates to ammonia. However, changing urea to ammonia is not a role performed by bacteria in the nitrogen cycle. Urea is typically converted to ammonia by the enzyme urease, which is not produced by bacteria but by other organisms such as plants and fungi.Rate this question:
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- 8.
Which of the following are true characteristics of Domain Eukarya?
- A.
Highly organized cell interior
- B.
Only monostrophic
- C.
Multicellularity
- D.
Sexual Reproduction
- E.
Asexual Reproduction
- F.
Cell walls made of peptidoglycan
- G.
Cell walls made of cellulose
- H.
Cell walls made of chitin
Correct Answer(s)
A. Highly organized cell interior
C. Multicellularity
D. Sexual Reproduction
E. Asexual Reproduction
G. Cell walls made of cellulose
H. Cell walls made of chitinExplanation
Domain Eukarya is characterized by highly organized cell interior, multicellularity, sexual reproduction, asexual reproduction, cell walls made of cellulose, and cell walls made of chitin. Eukaryotic cells have membrane-bound organelles, such as a nucleus, which contribute to their highly organized cell interior. Multicellularity refers to the presence of multiple cells working together to form complex organisms. Eukaryotes reproduce both sexually and asexually, allowing for genetic diversity and efficient reproduction. Cell walls made of cellulose are found in plants, while cell walls made of chitin are found in fungi. These characteristics distinguish Domain Eukarya from other domains such as Bacteria and Archaea.Rate this question:
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- 9.
Chech what is true about Euglena...
- A.
Have flagellum
- B.
Photosynthetic and heterotrophic
- C.
Can live without light
- D.
Has a pellicle
- E.
Has no chloroplast
Correct Answer(s)
A. Have flagellum
B. Photosynthetic and heterotrophic
C. Can live without light
D. Has a pellicleExplanation
Euglena is a single-celled organism that belongs to the phylum Euglenozoa. It is known for having a flagellum, which is a whip-like structure that helps it move. Euglena is also unique because it can perform both photosynthesis and heterotrophy. This means it can produce its own food through photosynthesis using chloroplasts, but it can also consume organic matter from its environment. Additionally, Euglena is capable of surviving in environments with low light levels, allowing it to adapt and thrive in various conditions. Lastly, Euglena has a pellicle, which is a flexible outer covering that provides shape and support to the cell.Rate this question:
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- 10.
Which of the following are true about Dermal tissue?
- A.
It forms the protective outer layer of a plant
- B.
Makes the inside of woody plants
- C.
In non-woody plant parts, it forms a "skin" called epidermis
- D.
Dermal tissue on woody stems and roots consist of several dead cell layers called cork
Correct Answer(s)
A. It forms the protective outer layer of a plant
C. In non-woody plant parts, it forms a "skin" called epidermis
D. Dermal tissue on woody stems and roots consist of several dead cell layers called corkExplanation
Dermal tissue is responsible for forming the protective outer layer of a plant, as well as the "skin" called the epidermis in non-woody plant parts. In woody stems and roots, dermal tissue consists of several dead cell layers known as cork.Rate this question:
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- 11.
Which of the following are true about Ground tissue?
- A.
Ground tissue is chloroplast does not help with photosynthesis
- B.
Ground tissue is surrounded by vascular tissue
- C.
Makes up the inside of non woody parts of plants, including roots, stems and leaves.
- D.
Consists of thin-walled cells that remain alive and keep their nucleus after maturity
Correct Answer(s)
C. Makes up the inside of non woody parts of plants, including roots, stems and leaves.
D. Consists of thin-walled cells that remain alive and keep their nucleus after maturityExplanation
Ground tissue is a type of plant tissue that makes up the inside of non-woody parts of plants, including roots, stems, and leaves. It consists of thin-walled cells that remain alive and keep their nucleus even after maturity. This tissue is not chloroplast and does not help with photosynthesis. It is also not surrounded by vascular tissue.Rate this question:
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- 12.
Which of the following is true about vascular tissue?
- A.
There are two kinds of vascular tissue in plants; xylem and phloem
- B.
Xylem and phloem act as tiny pipes
- C.
Vascular system is like the plumbing system
- D.
Xylem make up conducting strands called vessels
- E.
Conducting strands in phloem are called sieve tubes
Correct Answer(s)
A. There are two kinds of vascular tissue in plants; xylem and phloem
B. Xylem and phloem act as tiny pipes
C. Vascular system is like the plumbing system
D. Xylem make up conducting strands called vessels
E. Conducting strands in phloem are called sieve tubesExplanation
Vascular tissue in plants is responsible for the transportation of water, nutrients, and sugars throughout the plant. It consists of two types: xylem and phloem. Xylem is responsible for the upward movement of water and minerals from the roots to the rest of the plant, while phloem transports sugars and other organic molecules from the leaves to other parts of the plant. Xylem and phloem can be compared to tiny pipes, as they function as conduits for the movement of fluids. The vascular system in plants can be likened to a plumbing system, as it serves a similar purpose of distributing resources throughout the plant. Within xylem, conducting strands called vessels are responsible for the transport of water, while in phloem, conducting strands are called sieve tubes.Rate this question:
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