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Chapter 3 Cells 8A
Cells:The Basic Units of LIfe
Question | Answer |
---|---|
What is the smallest unit that can perform all life processes? | Cell |
What is the phospholipid layer that covers a cell's surface? | Cell Membrane |
What is one of the small bodies in a cell's cytoplasm that are specialized to perform a specific function? | Organelle |
What is a membrane-bound organelle that contains a cell's DNA and info on how to make proteins? | Nucleus |
What is an organism that consists of a single cell that doesn't have a nucleus? | Prokaryote |
What is an organism made up of cells that has a nucleus and is enclosed by a membrane? | Eukaryote |
What is a rigid structure that surrounds the cell membrane and provides support to the cell? | Cell Wall |
What is a cell organelle composed of RNA and protein and is the site or photosynthesis? | Ribosomes |
What is a system on folded membranes in which proteins, lipids, and other materials are made? | Endoplasmic Reticulum |
What is a cell organelle that helps make and package materials to be transported out of the cell? | Golgi Complex |
What is a small cavity or sac that contains materials in a eukaryotic cell? | Vesicle |
What are lysosomes? | a cell organelle that contains digestive enzymes |
What is a vacuole? | a large vesicle |
What is a group of similar cells that perform a common function? | Tissue |
What is a collection of tissues that carry out a specialized function of the body? | Organ |
What is a group of organs working together to perform body functions? | Organ System |
What is a living thing that can carry out life processes independently? | Organism |
What is an arrangement of parts in an organism? | Structure |
What is the special, normal, or proper activity of an organ or part? | Function |
What are the 3 advantages of being multicellular? | Bigger, Longer Life, and Specialized Functions |
What are the 4 levels of organization? | Cell, Tissue, Organ, Organ System |
What are 2 functions of a cell membrane? | To protect the cell and to allow nutrients to enter and wastes to exit the cell. |
What types of cells have cell walls? | Plant cells |
Where is most of a cell's ATP made? | Mitochondria |
How do eukaryotes and prokaryotes differ? | prokaryotes have one cell and eukaryotes have more than one |
Why are many cells small? | The volume grows faster then the cell's surface area |
What genetic material does the nucleus contain? | DNA |
What are the 3 parts of the cell theory? | All living things make up cells, cells are the basic unit of all living things, and new cells come from existing cells |
What does rough ER have that smooth ER doesn't? | Ribosomes |
What 2 things do plants have that animals don't? | Chloroplasts and a Cell Wall |
Why are lysosomes important? | they destroy worn out or damaged cells, get rid of waste, and protect the cell from foreign invaders |