Download Biology Formative Week 20 2007

Biology Formative Assessment – Week 20
1.
The structure of any cell is adapted to its function. All cells are either prokaryotic or
eukaryotic. Which of the following correctly describes prokaryotic cells?
A.
B.
C.
D.
2.
Plant cells have special parts that enable them to carry out functions necessary for life in
plants. What three parts does a plant cell have that many other kinds of organisms do
NOT have?
A.
B.
C.
D.
3.
A nucleus, a cell membrane, a cell wall
Mitochondria, chloroplasts, a cell wall
Mitochondria, a cell membrane, a nucleus
Chloroplasts, a cell wall, a large central vacuole
All cells require a source of energy to stay alive. The same organelle in plant and animal
cells converts the chemical energy stored in food into forms more usable by the cell.
What organelle is this?
A.
B.
C.
D.
4.
Usually small, with a membrane around its genetic material
Usually small, with no membrane surrounding its genetic material
Usually connected to other cells, with a membrane surrounding its genetic
material
Usually connected to other cells, with no membrane surrounding its genetic
material
Chloroplasts
Endoplasmic reticulum
Mitochondria
Ribosome
Cells and tissues in the human body have special functions to perform and are structured
to carry out these activities. Muscle cells make up muscle tissue, which is attached to
bones, forms the walls of the heart, or lines the arteries and digestive tract. What is the
special structure of muscle tissue that allows it to carry out its function?
A.
Bundles of cells that contract and relax
B.
Cells that contain a protein to carry oxygen
C.
Cells that produce insulin, a hormone that regulates blood sugar
D.
Long projections from the main part of the cell to a part of the body, such as the
hand
DCPS Science Department, 2007 – 2008
Biology Formative Week 20
1
Look at the diagram of a cross-section of a cell membrane below.
lipid
protein
5.
The cell membrane controls movement of materials into and out of the cell.
Which of the following correctly describes how materials move across the membrane?
A.
B.
C.
D.
Water is the only material that can move through the membrane.
Solute particles only move from the outside to the inside of the cell.
Protein channels allow some particles to enter and leave the cell.
Diffusion uses energy to move particles like sodium ions across the membrane.
Look at the diagram of a beaker containing two sugar solutions separated by a selectively
permeable membrane. Sugar molecules are represented by the ● symbol.
● ●
● ●
●
● ●
● ●
● ●
● ●
●
A
6.
The process of osmosis moves materials through a selectively permeable membrane.
What will osmosis cause to occur in the beaker over time?
A.
B.
C.
D.
7.
B
Sugar molecules will move from A to B.
Sugar molecules will move from B to A.
Water molecules will move from A to B.
Water molecules will move from B to A.
Much of the energy needed by cells is used to move particles across cell membranes.
What is the process that moves these particles?
A.
B.
C.
D.
Facilitated diffusion
Active transport
Simple diffusion
Osmosis
DCPS Science Department, 2007 – 2008
Biology Formative Week 20
2
8.
Adenosine triphosphate (ATP) and adenosine diphosphate (ADP) are compounds that
cells use to store and release energy. Which of the following causes energy to be
released?
A.
The chemical bond between two phosphate groups of an ATP molecule is broken.
B.
The chemical bond within a phosphate group of an ADP molecule is broken.
C.
A chemical bond is formed to add a phosphate molecule to an ATP molecule.
D.
A chemical bond is formed to add a phosphate molecule to an ADP molecule.
SHORT RESPONSE
9.
In addition to moving materials across cell membranes, the energy of a cell is used for
other activities. Describe two other cellular activities that require energy.
SHORT RESPONSE
10.
The structure of a cellular organelle is related to the function it must perform. Choose one
of the following organelles and describe how its structure relates to its function:
mitochondrion
vacuole
DCPS Science Department, 2007 – 2008
Biology Formative Week 20
rough endoplasmic reticulum
3