Do You Know Year 7 Biology?
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Which of the following processes is NOT directly involved in the regulation of blood glucose levels?
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Gluconeogenesis
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Glycogenolysis
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Lipogenesis
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Insulin secretion
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The Year 7 Biology Quiz is designed to assess and enhance your understanding of key concepts in biology. This quiz will cover fundamental topics such as cells, human anatomy, ecosystems, plant biology, and much more. It is an excellent resource for Year 7 students to gauge their knowledge and solidify their understanding of biology before moving on to more complex See moresubjects.
Throughout the quiz, you will encounter a variety of questions designed to test your grasp on both theoretical and practical aspects of biology. The year 7 biology test is suitable for those looking to prepare for exams or those who simply want to reinforce their learning.
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- 2.
The bodily changes that happen around the age of 13 are referred to as ______________.
Explanation
Puberty is the period during which a child's body undergoes significant physical and hormonal changes, typically starting around the age of 13. This process includes the development of secondary sexual characteristics, growth spurts, and, in girls, the onset of menstruation. Puberty marks the transition from childhood to adolescence and is a natural part of human development.Rate this question:
- 3.
Which of the following is an example of a mammal?
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Hawk
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Rainbow Trout
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Platypus
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Terantula
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A log
Correct Answer
A. PlatypusExplanation
The platypus is a mammal, which are characterized by being warm-blooded, having hair or fur, giving birth to live young (except for monotremes like the platypus that lay eggs), and producing milk to feed their young. The platypus is unique in that it has features like a duck-like bill and lays eggs, distinguishing it from other mammals, but it still possesses all the key characteristics of a mammal.Rate this question:
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- 4.
How many days does the menstrual cycle typically last?
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30
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7
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365
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28
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14
Correct Answer
A. 28Explanation
The average menstrual cycle lasts for 28 days, although it can vary from person to person. The cycle begins on the first day of menstruation and ends just before the next period starts. This cycle includes stages like ovulation, the thickening of the uterine lining, and the shedding of the lining if no fertilization occurs. Understanding this cycle is important for tracking reproductive health.Rate this question:
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- 5.
The ____ let you breath.
Correct Answer
lungs
lung
Lungs
LungExplanation
The correct answer is "lungs". The lungs are vital organs that enable the process of breathing. They take in oxygen from the air and expel carbon dioxide from the body. They are a pair of organs located in the chest cavity and are essential for respiration, which supplies oxygen to the body and removes waste gases.Rate this question:
- 6.
Name three main food types in a balanced diet.
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MacDonalds.
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Fibre.
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Protein.
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Chocoate.
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Carbohydrates.
Correct Answer(s)
A. Fibre.
A. Protein.
A. Carbohydrates.Explanation
The three main food types in a balanced diet are fiber, protein, and carbohydrates. Fiber is essential for maintaining a healthy digestive system and preventing constipation. Protein is necessary for building and repairing tissues, as well as supporting the immune system. Carbohydrates provide energy for the body and should come from sources like whole grains, fruits, and vegetables. MacDonalds and chocolate are not considered main food types in a balanced diet.Rate this question:
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- 7.
The process by which plants make their food using sunlight, water, and carbon dioxide is called ____________.
Correct Answer(s)
photosynthesisExplanation
Photosynthesis is a process used by plants, algae, and certain bacteria to convert light energy, usually from the sun, into chemical energy stored in glucose (a sugar). During photosynthesis, plants take in carbon dioxide (CO2) from the air and water (H2O) from the soil. Using the energy from sunlight, they transform the CO2 and H2O into glucose and oxygen (O2). The glucose provides energy and the building blocks for growth, while the oxygen is released as a byproduct into the atmosphere. This process is crucial for life on Earth, as it is the primary source of oxygen and it forms the base of most food chains.Rate this question:
- 8.
Alcohol is bad for your body because: (1 or more answers)
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It impares your mental capacity.
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It makes you feel energetic.
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It affects your liver.
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It makes you angry.
Correct Answer(s)
A. It impares your mental capacity.
A. It affects your liver.
A. It makes you angry.Explanation
Alcohol is bad for your body because it impairs your mental capacity, acting as a depressant, affecting your liver, and making you angry. Alcohol consumption can lead to cognitive impairment, slowing down brain function and decision-making abilities. It is classified as a depressant because it slows down the central nervous system, causing relaxation and sedation. Long-term alcohol abuse can damage the liver, leading to conditions like cirrhosis. Additionally, alcohol can alter mood and behavior, increasing the likelihood of aggressive or angry outbursts.Rate this question:
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- 9.
What is the main function of red blood cells in the human body?
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To fight infections
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To carry oxygen to the body’s cells
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To produce hormones
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To digest food
Correct Answer
A. To carry oxygen to the body’s cellsExplanation
Red blood cells (RBCs) have a crucial role in transporting oxygen from the lungs to the body’s tissues and returning carbon dioxide from the tissues to the lungs for exhalation. These cells contain hemoglobin, a protein that binds to oxygen, allowing it to be carried throughout the bloodstream. This process is vital for cellular respiration, providing the energy required for bodily functions. Without sufficient RBCs or hemoglobin, the body's organs and tissues would not receive enough oxygen, leading to fatigue and other health issues.Rate this question:
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- 10.
What is the primary role of the stomata in plants?
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To absorb nutrients from the soil
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To release oxygen into the air
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To allow gas exchange, including water vapor
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To anchor the plant to the ground
Correct Answer
A. To allow gas exchange, including water vaporExplanation
Stomata are small openings on the surface of leaves that facilitate gas exchange. Through these openings, plants take in carbon dioxide for photosynthesis and release oxygen as a byproduct. Stomata also allow water vapor to escape from the plant, a process known as transpiration. This not only helps in the uptake of carbon dioxide but also aids in cooling the plant and maintaining water balance. The opening and closing of stomata are controlled by guard cells to regulate water loss and gas exchange, crucial for plant survival.Rate this question:
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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
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Current Version
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Jan 09, 2025Quiz Edited by
ProProfs Editorial Team -
Jun 30, 2009Quiz Created by
Jackharry
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