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30 Cards in this Set
- Front
- Back
all living things are made of
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cells
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What does Pectin do?
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Pectin glues cells together in middle lamella
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the basic unit of structure and function is the
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cell
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Define Nuclear envelope
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2 membranes with pores which allow certain materials to pass in and out.
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Who discovered and named the nucleus of cells
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Robert Browne
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What are the three types of plastids?
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1. chloroplast
2. chromoplast 3. Amyloplast |
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Cytoplasm is:
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the internal environment for cell organelles
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What do cell walls do?
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Protect the cell, including the cell shape. Also prevents the excessive uptake of water.
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Which major cell type has a true nucleus and organelles made of membranes?
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EU Karyoke
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Plastids are:
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plant cells only.
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chromatin is:
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DNA and protein histones
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chromoplast is a
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single membrane sac with red, orange, and yellow pigment.
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histones are
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genentic material of the cell - thin stringy, not visible with a light microscope
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Chloroplast are made of
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3 membranes, own DNA and tribosomes and
contain pigment |
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When a histone is thick and coiled and visible during cell division it is called a
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chromosome
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amyloplast is:
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a single membrane sac with stored food.
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All cells come from
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pre-existing cells
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The main function of chromoplast is as part of
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reproduction
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Describe Cytoplasm:
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Water with dissolved monomerstions.
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What do plastids do?
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Plastids store pigments of food for plants.
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Who invented the microscope?
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Von Leeuwenhock
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Who invented the microscope
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Von Leeuwenhoek
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The nucleus is:
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the control center of cells.
controls al activities and cell reproduction. contains genetic material. |
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The three parts of Eukarotic cells are:
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1. cell membrane
2, cytoplasm and 3. nucleus |
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A cell membrane has ____ layers of phospholipids?
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2
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How many major cell types are there?
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Two
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define "nucleoplasm"
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thicker cytoplasm with many dissolved nucleotides.
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In cell membrane the embedded protein controls __________ ?
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Everything that goes in and of out of the cells, as well as the cell shape and cell protection.
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Which major cell type has no true nucleus or organelles - it is made of membranes?
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ProKaryoke
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the nuceus is:
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the densest part of the cell
it is granular, made of RNA and protein and produces ribomes |