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Grade 9 Biology

QuestionAnswer
What is the Cell Theory? 1. all living organisms are compoesd of cells. 2. Cells are the basic units of structure and function in all organisms 3. All cells come from previously existing cells. 4. The activity of an entire organism depends on the total activity of its cells
What is the formation of a new individual with identical genetic information as the parent? asexual reproduction
What is the organelle that is known as the powerhouse of the cell? mitochondrion
A human cell contains 46 chromosomes. After mitosis, how many chromosomes would you expect to find in each new cell? 46
What Invention played a key role in the development of the cell theory? microscope
What are the main functions of cell division? healing, growth, reproduction
What are the phases of mitosis? interphase, prophase, metaphase, anaphase, telophase
What is it called when organisms make lost/injured body parts? regeneration
What is a technique used to grow a variety of apples on one tree? layering
What is your genetic information? your genetic information is your DNA (deoxyribonucleic acid)
why is the duplication of the nuclear material necessary during the cell cycle? it is necessary because if the nuclear material isn't duplicated, the cells wouldn't be identical.
What are the 3 areas of the body in which the cells divide most rapidly? 1. stomach lining (2days) 2. intestinal track lining (3 days) 3. skin cells (20 days)
What are cancer cells? cells that are out of control and continue dividing while taking up important nutrients needed for other cells
What is binary fission? Asexual reproduction in bacteria that do not contain a true nucleus
What are the three methods that fungi use to reproduce asexually? fragmentation, budding, and spores
Created by: natasha cameron
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