Transcript Which of the following organisms do NOT have cell walls?

Which of the following organisms
do NOT have cell walls?
1.
2.
3.
4.
plants
fungi
bacteria
animals
Which of the following is NOT
true of plasma membranes?
1.
2.
3.
4.
Folded membranes increase
surface area for efficiency.
Folded membranes do not
form compartments in the
cell.
Endoplasmic reticulum is
made up of folded
membranes.
Ribosomes are sometimes
attached to folded
membranes.
Folded membranes are an
advantage to a cell because _____.
1.
2.
3.
4.
cell processes can be
more efficient
the membranes provide
a large surface area
the membranes form
interconnected
compartments
all of these
All living things are made up of
_____.
1.
2.
3.
4.
cells
cork
wastes
cellulose
What do electron microscopes use
to focus and magnify an image?
1.
2.
3.
4.
glass lenses
X rays
electron beams
light
Each of the following is a main idea
of the cell theory except _____.
1.
2.
3.
4.
all organisms are
composed of cells
the cell is the basic unit
of organization of
organisms
all cells are similar in
structure and function
all cells come from
preexisting cells
The scientist who first described living cells
as seen through a simple microscope was
_____.
1. van Leeuwenhoek
2. Schleiden
3. Hooke
4. Schwann
If a cell contains a nucleus, it
must be a(n) _____.
1.
2.
3.
4.
plant cell
eukaryotic cell
animal cell
prokaryotic cell
A plasma membrane is made up
of a(n) _____.
1. cholesterol layer
2. enzyme bilayer
3. phospholipid
bilayer
4. protein layer
Which is not a way that Figure 7-2
is a model of cellular theory?
1. bricks are small
units in a building
2. bricks are solid
3. there are many
bricks in a building
4. bricks are organized
to make a larger unit
What would happen to the structure in
Figure 7-4 if part D is completely removed?
1. the ends would
become tangled
2. it would disintegrate
3. it would have holes
in it
4. it would collapse in
on itself
Where are you least likely to find water in
the structure shown in Figure 7-4
(hydrophobic)
1.
2.
3.
4.
A
B
C
E
Which structure in Figure 7-6 is
the cell control center?
1.
2.
3.
4.
A
G
I
M
Which structure in Figure 7-6
maintains homeostasis?
1.
2.
3.
4.
B
D
H
L
Which structure in Figure 7-6
transforms energy?
1.
2.
3.
4.
C
G
J
K
Which structure in Figure 7-6
sorts and transports?
1.
2.
3.
4.
B
G
I
M
A cell contains the structure shown in
Figure 7-7. What other cell structure that is
not found in all eukaryotic cells is likely to
be found in this cell?
1.
2.
3.
4.
mitochondria
ribosomes
cell wall
plasma
membrane
One advantage of electron microscopes
over light microscopes is their _____.
1. size
2. higher
magnification
3. two-dimensional
image
4. use of live
specimens
Because the phospholipid molecules and
some proteins are free to move, the plasma
membrane is said to be a ____.
1. bilayer
2. solid
3. fluid mosaic
4. fatty acid
Cell structures that contain digestive
enzymes are ____________________.
1) mitochondria
2) lysosomes
3) ribosomes
4) Golgi apparatus
In a cell, the sites of protein synthesis
are the ____________________.
1) mitochondria
2) lysosomes
3) ribosomes
4) Golgi apparatus
The small, membrane-bound structures
inside a cell are ____________________.
1) organs
2) nuclei
3) organelles
4) gross
The movement of materials into and out of
the cells is controlled by the
____________________.
1. organelles
2. nucleus
3. brain
4. plasma membrane
An organism with a cell that lacks a true
nucleus is a(n) ____________________.
1. paramecium
2. eukaryote
3. prokaryote
4. mitochondria
In a cell, the breakdown of molecules in order to release
energy occurs in the ____________________, they are the
“powerhouses” of the cell.
1.
2.
3.
4.
mitochondria
lysosomes
ribosomes
Golgi apparatus
Short, hairlike projections used for
locomotion are ____________________.
1. really short legs
2. cilia
3. flagella
4. microtubules
In plants, the structures that transform light
energy into chemical energy are called
____________________.
1. nucleus
2. nucleolus
3. endoplasmic reticulum
4. chloroplasts
The network of tiny rods and filaments that
forms a framework for the cell is called the
____________________.
1. cilia
2. flagella
3. cytoskeleton
4. plasma membrane
The pigment that gives plants their green
color is ____________________.
1. chlorophyll
2. green crayons
3. ink
4. lysosomes
The folded system of membranes that forms a network of
interconnected compartments inside the cell is called the
_________________________.
1. Golgi apparatus
2. mitochondria
3. endoplasmic reticulum
4. ribosomes
The functions of a eukaryotic cell are
managed by the ____________________.
1. nucleus
2. nucleolus
3. mitochondria
4. endoplasmic reticulum
A structure outside the plasma membrane in
some cells is the ____________________.
1. cytoskeleton
2. nucleus
3. cell membrane
4. cell wall