7th Grade Biology Worksheets

📆 Updated: 19 Sep 2024
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🔖 Category: Biology

7th grade biology worksheets provide an effective way for students to reinforce their understanding of key concepts in the subject. These worksheets cover a range of topics such as cell structure and function, genetics, ecosystems, and human body systems, making them suitable for middle school students studying biology.



Table of Images 👆

  1. 7th Grade Life Science Cells Worksheet
  2. 7th Grade Science Worksheets
  3. 7th Grade Life Science Worksheets
  4. Biology Cell Worksheets
  5. Plant Cell Structure and Function Worksheet
  6. 7th Grade Genetic Punnett Square Worksheet
  7. Cell Organelle Quiz Worksheet
  8. Photosynthesis 7th Grade Science Worksheet Answers
  9. Biology Cells Worksheets Answer Keys
  10. 7th Grade Science Word Search
  11. 7th Grade Biology Practice Sheets
  12. 7th Grade Biology Practice Sheets
  13. 7th Grade Life Science Activities
  14. 7th Grade Biology Practice Sheets
14 Images of 7th Grade Biology Worksheets
Pin It!   14 Images of 7th Grade Biology Worksheets

7th Grade Life Science Cells Worksheet
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7th Grade Science Worksheets
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7th Grade Life Science Worksheets
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Biology Cell Worksheets
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Plant Cell Structure and Function Worksheet
Pin It!   Plant Cell Structure and Function WorksheetdownloadDownload PDF

7th Grade Genetic Punnett Square Worksheet
Pin It!   7th Grade Genetic Punnett Square WorksheetdownloadDownload PDF

Cell Organelle Quiz Worksheet
Pin It!   Cell Organelle Quiz WorksheetdownloadDownload PDF

Photosynthesis 7th Grade Science Worksheet Answers
Pin It!   Photosynthesis 7th Grade Science Worksheet AnswersdownloadDownload PDF

Biology Cells Worksheets Answer Keys
Pin It!   Biology Cells Worksheets Answer KeysdownloadDownload PDF

7th Grade Science Word Search
Pin It!   7th Grade Science Word SearchdownloadDownload PDF

7th Grade Biology Practice Sheets
Pin It!   7th Grade Biology Practice SheetsdownloadDownload PDF

7th Grade Biology Practice Sheets
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7th Grade Life Science Activities
Pin It!   7th Grade Life Science ActivitiesdownloadDownload PDF

7th Grade Biology Practice Sheets
Pin It!   7th Grade Biology Practice SheetsdownloadDownload PDF


What is a cell?

A cell is the basic structural and functional unit of living organisms. It is the smallest unit of life that can perform all the necessary functions to sustain life, including metabolism, growth, and reproduction. Cells can vary in size, shape, and function, but they all contain genetic material and are surrounded by a membrane that regulates the passage of substances in and out of the cell.

What are the three parts of a cell?

The three main parts of a cell are the cell membrane, which acts as a barrier to protect the cell and regulate what enters and exits the cell; the cytoplasm, which is a gel-like substance where organelles are suspended and most cellular activities take place; and the nucleus, which contains the cell's genetic material (DNA) and controls cell functions.

How do cells reproduce?

Cells reproduce through a process called cell division, where a parent cell divides into two or more daughter cells. The two main types of cell division are mitosis, which results in two identical daughter cells with the same genetic material as the parent cell, and meiosis, which is involved in the production of gametes (sperm and eggs) and results in cells with half the genetic material of the parent cell. During cell division, the genetic material of the cell is first duplicated, then segregated into the daughter cells, ensuring that each new cell receives a complete set of genetic information.

What is photosynthesis?

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy, typically from the sun, into chemical energy in the form of glucose. This process involves the use of carbon dioxide and water to produce oxygen as a byproduct. Photosynthesis is crucial for the survival of many organisms as it is the primary source of energy for most ecosystems on Earth.

Define DNA.

DNA, or deoxyribonucleic acid, is a molecule that carries the genetic instructions for the development, functioning, growth, and reproduction of all living organisms. It is a double-helix structure made up of nucleotides that contain the genetic code necessary for an organism's traits and characteristics. DNA is found in the nucleus of cells and is crucial for passing genetic information from one generation to the next through the process of replication and cell division.

What is the function of the mitochondria?

The mitochondria are known as the powerhouse of the cell due to their main function of producing energy in the form of adenosine triphosphate (ATP) through the process of cellular respiration. This organelle is responsible for converting nutrients such as glucose into ATP, which is essential for providing energy to the cell to carry out its various metabolic and physiological functions.

Explain the process of digestion.

Digestion is the process by which the body breaks down food into nutrients that can be absorbed and utilized. It begins in the mouth, where food is chewed and mixed with saliva to start breaking it down. The food then travels through the esophagus to the stomach, where stomach acids and enzymes further break it down. From the stomach, the partially digested food moves into the small intestine, where enzymes from the pancreas and bile from the liver continue to break down the food into smaller molecules that can be absorbed into the bloodstream. The nutrients are then absorbed through the walls of the small intestine and transported to the cells in the body for energy, growth, and repair. The waste products that cannot be digested move to the large intestine, where water is absorbed, and the remaining waste is formed into stool and expelled from the body.

Describe the function of the circulatory system.

The circulatory system, consisting of the heart, blood vessels, and blood, functions to transport oxygen, nutrients, hormones, and waste products throughout the body, maintaining homeostasis and supporting the body's functions. The heart pumps oxygenated blood to the body's tissues and organs through arteries, while veins return deoxygenated blood back to the heart. This process ensures that the body's cells receive the necessary nutrients and oxygen while removing waste products to be eliminated.

What is the difference between an animal cell and a plant cell?

The main difference between an animal cell and a plant cell is the presence of a cell wall and chloroplasts in plant cells, which are absent in animal cells. Plant cells have a rigid cell wall made of cellulose that provides structure and support, while animal cells have a flexible cell membrane. Additionally, plant cells contain chloroplasts, which are responsible for photosynthesis and giving plants their green color, whereas animal cells do not have chloroplasts.

What is the role of enzymes in biological reactions?

Enzymes play a crucial role in biological reactions by acting as catalysts, which means they speed up the rate of these reactions without being consumed in the process. Enzymes work by lowering the activation energy required for a reaction to occur, making it easier and faster for the reactions to take place within the cells. This enables biological processes such as metabolism, synthesis of molecules, and breakdown of substances to occur efficiently and at a rapid pace, ultimately allowing organisms to maintain life functions.

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