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30 Cards in this Set

  • Front
  • Back
all living things are made of
cells
What does Pectin do?
Pectin glues cells together in middle lamella
the basic unit of structure and function is the
cell
Define Nuclear envelope
2 membranes with pores which allow certain materials to pass in and out.
Who discovered and named the nucleus of cells
Robert Browne
What are the three types of plastids?
1. chloroplast

2. chromoplast

3. Amyloplast
Cytoplasm is:
the internal environment for cell organelles
What do cell walls do?
Protect the cell, including the cell shape. Also prevents the excessive uptake of water.
Which major cell type has a true nucleus and organelles made of membranes?
EU Karyoke
Plastids are:
plant cells only.
chromatin is:
DNA and protein histones
chromoplast is a
single membrane sac with red, orange, and yellow pigment.
histones are
genentic material of the cell - thin stringy, not visible with a light microscope
Chloroplast are made of
3 membranes, own DNA and tribosomes and
contain pigment
When a histone is thick and coiled and visible during cell division it is called a
chromosome
amyloplast is:
a single membrane sac with stored food.
All cells come from
pre-existing cells
The main function of chromoplast is as part of
reproduction
Describe Cytoplasm:
Water with dissolved monomerstions.
What do plastids do?
Plastids store pigments of food for plants.
Who invented the microscope?
Von Leeuwenhock
Who invented the microscope
Von Leeuwenhoek
The nucleus is:
the control center of cells.
controls al activities and cell reproduction.
contains genetic material.
The three parts of Eukarotic cells are:
1. cell membrane

2, cytoplasm and

3. nucleus
A cell membrane has ____ layers of phospholipids?
2
How many major cell types are there?
Two
define "nucleoplasm"
thicker cytoplasm with many dissolved nucleotides.
In cell membrane the embedded protein controls __________ ?
Everything that goes in and of out of the cells, as well as the cell shape and cell protection.
Which major cell type has no true nucleus or organelles - it is made of membranes?
ProKaryoke
the nuceus is:
the densest part of the cell
it is granular, made of RNA and protein and produces ribomes