Cells: The Basic Units Of Life: Question Preview (ID: 16450)


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Larger size, longer life, and specialization are three advantages to being
a) multicellular. b) eukaryote. c) prokaryote. d) unicellular
Leeuwenhoek called the single-celled organisms that he found in pond scum animalcules. Today we know them as
a) plant life b) protists c) fungi d) animals
The function of a part of an organism is related to
a) the shape of its parts. b) its appearance under a microscope. c) the structure of that part. d) its arragement of cells.
An organelle that contains the cells DNA is the
a) ribosome b) cytoplasm c) lysosomes d) nucleus
Prokaryotes that include such types as heat-loving, salt-loving, and methane-making.
a) fungi b) eukaryotes c) bacteria d) archaea
Which part of the cell acts as the cell's delivery system?
a) endoplasmic reticulum b) nucleus c) mitochondria d) cell wall
What part of the cell forms a barrier between the cell and its environment?
a) cholesterol b) nucleus c) cell membrane d) ribosome
What cell parts carry materials between organelles such as the ER and the Golgi complex?
a) ribosomes b) vacuoles c) lysosomes d) vesicles
Energy released by a cell's mitochondrion is stored in
a) the ER. b) ATP. c) RNA. d) DNA.
A cell's nucleus contains DNA, which carries genetic material with
a) ribosomes. b) the cytoskeleton. c) instructions for how to make protein. d) the endoplasmic reticulum.
Most cells are a very small size because
a) their volume is limited by how large their surface area is. b) they don't have hard shells like eggs. c) their surface area-to-volume ratio is too small. d) their volume does not increase.
What cell part supports the cell and might be made of cellulose orchitin?
a) cell membrane b) cell wall c) nucleus d) ribosomes
Scientist Matthais Schleiden contributed to the cell theory by concluding that
a) the cell of plants and animals were the same. b) all animal tissues were made of cells. c) the cells of plants were different from those of animals. d) all plant parts were made of cells.
Which of the following statements is not part of the cell theory?
a) all cells come from existing cells b) animals and plants share the same kinds of cells c) all organisms are made up of one or more cells d) the cell is the basic unit of all living things
What part of the cell keeps the cell membrane from collapsing?
a) cytoplasm b) cell wall c) nucleus d) cytoskeleton
Ribosomes, the organelles that make proteins, are found on the membranes of the
a) ER b) vacuoles c) cell wall d) mitochondria
Which of the following is true of each of the four levels of organization of living things?
a) Each contains larger cells that the level below it. b) Each performs the same functions as the level below it. c) Each is more specialized than the level below it. d) Each is more complex than the level below it.
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