The AMSAT Biology exam is one of the most popular tests in the UAE for university admission. This exam aims to assess students’ knowledge, understanding and abilities in the field of life sciences. The exam is designed to test a variety of concepts and skills learned over the specified time period. The questions in the exam vary to measure their ability to apply them in different contexts. The exam may include a set of different questions such as practical and theoretical questions and multiple choice questions. One of the things that are focused on is biological classification, where students are asked to classify a specific group of living organisms and explain the relationships between them. The exam also includes questions about the structure of cells and the functions of their different parts.
In addition, the focus is on environmental and sustainability topics and questions related to the impact of human activities on the environment and possible measures to preserve biodiversity and sustainability. One of the important aspects of the exam is the ability to analyze and think critically. Scenarios and problems are included that students have to solve using biological concepts and apply them in practical life. In addition, comprehensive conclusions and interpretations of the results and data presented in the questions are required. Students must wait for the exam results, which will be a clear indication of their level of understanding and performance in the field of biology. Regardless of the final results, students should be proud of their efforts and diligence in preparing for the exam and interacting with the study materials.
Evening revival model with solution:
- Which of the following macromolecules contains a phosphate group (P-group)?
- nucleic acids
- Carbohydrates
- Fats
- Proteins
- The correct answer is: 1. Nucleic acids
2. Which of the following statements is true about the induced-fit model during the reaction of the enzyme with the substrate?
- The structure of the active site of the enzyme is changed by the substrate.
- The enzyme binds directly to the substrate to form an enzyme-substrate complex.
- The shape of the enzyme changes with a chemical reaction.
- The active site of the enzyme changes its shape to accept the substrate.
The correct answer is: 4. The active site of the enzyme changes its shape to accept the substrate.
- Cystic fibrosis is a chronic, fatal genetic disease that occurs in the body's mucous glands. Cause
This disease is an autosomal recessive mutation. Statistics on the European population indicate that one child out of every 10,000 children is born with the disorder. What is the frequency of the cystic fibrosis allele in the European population assuming that the Hardy-Weinberg conditions are met?
- 0.1
- 0.00001
- 0.01
- 1.0
The correct answer is: 1. 0.1
- Each alternate copy of a gene is called a?
- Allel
- centerpiece
- cipher
- chromatid break
- The correct answer is: 1. Allele
- A student immersed a piece of potato tissue in 0.25-mol.dm of sucrose solution and did not experience any change in the mass of the tissue.
What will the student find when he immerses the piece in 0.1-3 mol.dm of sucrose solution?
- The mass will increase due to the decrease in the water potential of the cells.
- The mass will decrease due to the increasing water potential of the cells.
- The mass will increase due to the decrease in the water potential of the solution.
- The mass will decrease due to the increasing water potential of the solution.
The correct answer is: 4. The mass will decrease due to the increase in the water potential of the solution.
6.Which of the following cannot be considered a density-dependent factor that affects population growth?
- climate temperature
- limited nutrients
- Toxic buildup
- Predation
The correct answer is: 1. Climate temperature
- Which of the following cell structures is considered a protein production factory in the cell?
- Rough endoplasmic reticulum
- Golgi apparatus
- Mitochondria
- nucleus
The correct answer is: Rough endoplasmic reticulum
The following diagram shows a cross section of a root in a plant. A student was given a sample containing a water-rich fluid. What tissue does this fluid come from?
- >A
- B
- C
- D
The correct answer is: 1. A
- The diagram below indicates the mRNA codons for the different amino acids.
Using the following codon sequence: 5' AUG UCU UAC CUG GCU CGG ... UAA 3'
Which of the following can be described as the basis of a nonsense substitution mutation in an mRNA sequence?
above?
- UAA JUAC substitution in the third codon
- UAU J UAC substitution in the third codon
- Replace UAC with UCC in the third codon
- UGC JUAC substitution in the third codon
The correct answer is: UAA JUAC substitution in the third codon.
- 9. The diagram below represents the inheritance of a severe recessive trait syndrome in a family.
If an affected man from the second generation marries a normal woman who is homozygous for the trait, what are the chances of having an affected child?
- 0%
- 25%
- 50%
- 100%
The correct answer is: 0%
10. What is the role of DNA in cells?
Answer : The role of DNA in cells DNA is the main genetic material in cells, as it contains the genetic information that determines the hereditary traits of living organisms. This information is stored in a specific sequence of nitrogenous bases in the DNA duplex ladder. DNA directs the processes of growth, development, and cellular functions by converting information into genetic messages and directing cellular activity based on these messages.
- What is metabolism and what is its role in life?
Answer: It is the process by which living organisms use the energy contained in food materials to achieve vital functions, growth and development. Metabolism includes two main processes: entropic metabolism (decomposition) and anabolic metabolism (building).
- Explain the concept of evolution and how it happens?
Answer: It is the gradual change in the characteristics of living organisms from generation to generation due to environmental pressures and genetic adaptations. Evolution is represented by changes in the composition of genes and hereditary traits across generations, which leads to changes in the composition, behavior, and adaptation of organisms to the environment.
- What is the difference between meiosis and non-meiosis?
Answer: Meiosis: The process of cell division that produces two cells with the same number of chromosomes as the parent cell. Meiosis occurs in somatic (body) cells and includes branching division (simple duplication) and contractile division (cell division).
Meiosis: A process of cell division that produces two daughter cells with different numbers of chromosomes. Meiosis occurs in gametes (corolla) and involves a single reproductive phase that results in the formation of gametes.
- What is the difference between a plant cell and an animal cell?
Answer: - Plant cell:
- It contains an outer cell wall that gives it support and protection.
- It contains chloroplasts that carry out photosynthesis to convert sunlight into chemical energy.
- They can vary greatly in size and shape, including long cells such as the cells of the transition tissue in leaves.
- Animal cell:
- It does not contain a cell wall, but is surrounded by a cell membrane.
- Does not contain chloroplast.
Their shapes are more varied between species, but they are often smaller than plant cells.
- What are the main organs in the digestive system and what are the functions of each?
Answer: Examples of the main organs in the digestive system and the functions of each:
- Stomach: It digests food, analyzes it, and converts it into absorbable substances.
- Small intestine: It is responsible for the effective absorption of nutrients and important nutrients into the bloodstream.
- Large intestine: absorbs water and salts, forms waste and excretes it from the body.
- What is the role of chlorophyll in plants?
Answer: The role of chlorophyll in plants:
Chlorophyll is the green pigment responsible for the green color in plants, and is the molecule that absorbs sunlight to carry out photosynthesis. When light is absorbed, it is converted into chemical energy that can be used in the process of energy storage and the production of organic matter.
- What is the importance of ecological balance and how can we contribute to preserving it?
Answer: - Ecological balance refers to maintaining the balance of different ecosystems, including biological, chemical and physical systems, to ensure the sustainability of life on Earth.
The importance of environmental balance includes preserving biological diversity, providing natural resources for living organisms, and providing suitable conditions for life and growth.
- You can contribute to preserving the ecological balance by:
- Raising awareness of the importance of the environment and the need to preserve it.
- Adopting sustainable practices such as saving natural resources and reducing waste.
- Support efforts to protect the environment, including preserving natural spaces and combating pollution.
- Participation in local and international activities and initiatives aimed at preserving the environment and promoting sustainable development.
- What are the differences between photolysis and pyrolysis?
Answer: Differences between photolysis and pyrolysis:
- Photolysis:
- It is the process of converting light into chemical energy, which is the process in which green organisms (such as plants) use sunlight to carry out photosynthesis.
- It occurs in the chloroplast inside plant cells.
- Pyrolysis:
It is the process of converting chemical energy into thermal energy, and it is the most common type of decomposition in living organisms.
- It occurs in all living organisms as part of cellular metabolic processes, where food compounds are broken down to release the chemical energy stored in them.
- What are the four main tissues in the human body and what are the functions of each?
Answer: The four main tissues in the human body and the functions of each:
Structural tissues: include epithelial tissue (skin), connective tissue (bone and connective tissue), muscular tissue (muscles), and nervous tissue (nerves).
- Functions of each:
- Epithelial tissue: provides protection for internal organs and controls the exchange of materials with the external environment.
Connective tissue: Provide structural support and provide a place for other tissues to grow and develop.
Muscle tissue: generates movement, reduces stress, and pushes blood and nutrients through the body.
Nervous tissue: transmits electrical and chemical signals in the body and regulates vital functions.
20. The main function of enzymes in living organisms is:
- a) Energy storage
- b) Cell structure
- c) Accelerating chemical reactions
- d) Genetic information
Correct answer: C) Accelerating chemical reactions
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In conclusion, the AMSAT Biology exam is an exam that aims to assess the level of knowledge and skills in biology and the student's preparation for the exam plays a crucial role in achieving success in this important exam to understand the exam requirements and do AMSAT Biology review .
It is necessary to prepare a study plan and review the basic concepts and basic rules before moving to more complex levels. Use curricula, reference books and online resources to enhance understanding and application of concepts by solving practical questions, solving previous practices and tests, searching for AMSAT Biology training and its solution, training in time management and allocating appropriate time for studying and searching online for AMSAT Biology model with solution.
In short, the AMSAT Biology exam and good preparation for it are crucial to achieving success. Students must understand the requirements of the exam, develop an organized study plan, review key concepts, and solve past practice and tests in order for students to achieve positive results in this important exam and increase their chances of success in the field of mathematics.
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