Chpt 6 sandall
Terms
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- what is the total magnification of a a compound microscope whose eyepiece power is 5x and whose objective power is 10x
- 50x
- both plant and animal cells have the following organelles in common
- plasma membrane, nucleus, cytoplasm
- which of the following is a function of the plasma membrane
- regulates which materials enter and leave the cell
- which organelle makes proteins using instructions that come from the nucleus
- ribosom
- in which cell organelle would water be stored
- vacuole
- which organelle releases energy from sugars and other molecules
- mitochondrion
- the most external cell structure in a cell from a geranium leaf is the
- cell wall
- which organelle breaks down macromolecules into particles the cell can use
- lysosome
- which of the following is NOT a function of the cytoskeleton
- helps produce proteins
- which of he following is NOT a principle of the cell theory
- very few cells reproduce
- which of the following is a function of the nucleus
- (all of the above) stores DNA, contains information needed to make proteins, directs the activities of the cell
- which organelle is present in the cells of a mouse but NOT present in the cells of a bean plant
- centriole
- diffusion is the net movement of molecules from
- an area of high concentration to an area of low concentration
- which structures carry out cell movement
- microfilaments
- the total magnification of a compound microscope is 45x. if the eyepiece power is 15x, then the objective power is
- 3x
- what is the total magnification of a compound microscope whose eyepiece power is 10x and whose objective power is 10x
- 100x
- the chloroplast is the organelle in which
- photosynthesis occurs
- the cell organelle that works as a \"protein assemble line\" is the
- ribosomes
- a thin, flexible barrier around the cell. it is called the
- plasma membrane
- which organelles are usually found in both plant and animal cells
- mitochondria
- the main function of the cell wall is to
- protect the cell and maintain its shape
- _______ are membrane-enclosed sacs that transport large particles through a plasma membrane
- vesicles
- the nucleus contains ____ and______
- the nucleolus ; chromatin
- what cell structure contains the cell\'s genetic material
- nucleus
- which organelle would you expect to find in plant cells but not animal cells
- chloroplast
- in the cytoplasm, the _______ participate in the storage and digestion of food within the cell
- vacuoles and lysosomes
- the main function of the cell wall is to provide support and protection
- true
- ribosomes cover the surface of rough endoplasmic reticulum
- true
- the parts that make up ribosomes are contained in a ball-like structure called chromatin
- false
- in a eukaryotic cell, the region between the plasma membrane and the nucleus is called the endoplasmic reticulum
- false
- according to the cell theory, all cells come from existing cells
- true
- the cytoskeleton helps to move organelles within the cell
- true
- the chloroplast modifies, stores, and routes proteins and other chemical products to their next destinations
- false
- the nuclear envelope is a pair of membranes that surrounds the nucleus
- true
- unlike smooth endoplasmic reticulum, rough endoplasmic reticulum has lysosoomes attached to it
- false
- Anton van leeuwenhoek looked at cork and called the units \"cells\"
- false
- molecules tend to move from an area where they are more concentrated to an area to where they are less concentrated this process is called diffusion
- true
- in the late 1600s single lensed microscopes that allow one celled organisms and bloodcells to be viewed were made by Anton van leeuwenhoek
- true
- used for final focusing
- fine adjustment
- allows further magnification can be switched to after focusing with other objective
- high power objective
- used for approximate focusing to get slide almost in focus
- coarse adjustment
- magnifies image, use this one first when looking at slide
- low power objectives
- limits light
- diaphram