Name: Date:
Exit Slip 8
1. A scientist removed the cell membranes from bacteria cells in a culture. She analyzed the cell membranes for specific molecules. Which of these was probably the most common type of molecule present in the bacteria cell membranes?
A. Lipid B. Amino acid C. Nucleic acid D. Carbohydrate
2. Which of the following is the correct role of nucleic acids in the body? E. They provide quick-releasing energy to the body.
F. They contain genetic information that is passed to offspring. G. They catalyze chemical reactions in the cell.
H. They are the main structural components of cell membranes. 3. According to the chart, proteins are which type of macromolecule?
A. Macromolecule W B. Macromolecule X C. Macromolecule Y D. Macromolecule Z
4. Which macromolecule is represented by the letter W? a. proteins
b. carbohydrates c. lipids
d. nucleic acids
5. Enzymes are an example of which type of macromolecule? a. proteins
b. carbohydrates c. lipids
d. nucleic acids
6. Which type of macromolecule is represented here? a. proteins
b. carbohydrates c. lipids
d. nucleic acids
7. Which type of macromolecule is represented here? a. proteins
b. carbohydrates c. lipids
Name: Date:
Exit Slip 9
1. Which equation illustrates the process of photosynthesis that occurs within the leaf given that sunlight is absorbed?
a. A+C B+D b. A+B C+D c. B+CA+D d. C+DA+B
2. The reaction below is…
a. Exothermic because energy is released b. Exothermic because energy is absorbed c. Endothermic because energy is released d.. Endothermic because energy is absorbed
3. Enzymes are…
a. Lipids b. Proteins c. Carbohydrates d. Nucleic Acids
4. Carboxypeptidase is on type of enzyme that cleaves the peptide bond between amino acids, thereby destroying the proteins. In the absence of this enzyme, the reaction is non-spontaneous. Carboxypeptidase, like all enzymes…
a. increases the reaction rate (catalyzes) of the reaction by increasing the activation energy b. increases the reaction rate (catalyzes) of the reaction by decreasing the activation energy c. does not catalyze the reaction but does decrease the activation energy
d. increases the reaction rate (catalyzes) of the reaction but has no effect on the activation energy
5. Enzymes are specific to…
I. Temperature II. pH
III. Concentration of substrate and concentration of enzyme a. I only
b. II and III only c. I, II, and III d. none of the above
6. The stomach has a pH of 2 due to the presence of hydrochloric acid (HCl), and the small intestine
has a pH ranging from 7 to 9. Pepsin is an enzyme that digests proteins in the stomach. Which of the following most likelyhappens to pepsin as it enters the small intestine?
Date:
Exit Slip 10 1. A water molecule:
a. interacts with other water molecules via ionic bonds b. interacts with other water molecules via covalent bonds
c. forms hydrogen bonds with other water molecules as a result of the polar nature of the molecule d. forms hydrogen bonds with other water molecules as a result of the non-polar nature of the molecule
2. You are sitting by a lake. You drop a leaf on the lake and notice that it sits on the top of the water. Which of the following properties of water could help explain what you observed?
a. water’s surface tension b. water is the universal solvent c. water can moderate temperature d. the leaf is hydrophobic.
3. You are a forensic scientist and have been asked to identify a white, unlabeled powder recovered from the scene of a crime. As a first step, you're interested in learning if the compound is polar or non-polar. What should you do and how should you interpret your findings?
a. Try to dissolve the powder in water; if it fails to dissolve it's a polar compound. b. Try to dissolve the powder in water: if it fails to dissolve it's a non-polar compound. c. Try to ignite the powder; if it burns it's a polar compound.
d. Try to dissolve the powder in oil; if it dissolves it's a polar compound. 4. The many amazing properties of water can be attributed to:
a. The covalent bonds between the oxygen and 2 hydrogen atoms
b. The hydrogen bonds between the oxygen and 2 hydrogen atoms of the same molecule
c. The structure formed between water molecules as a result of the intermolecular hydrogen bonds d. Who cares, water is just water.
5. Water can move from the roots of plants up to leaves. Which of the following properties is responsible for this vital function? a. polarity
b. adhesion
c. the combination of cohesion and adhesion which results in capillary action d. water’s ability to moderate temperature
6. Water dissolves many substances. This occurs because water has a. surface tension
b. polarity c. specific heat d. cohesion
7. When the cells of most organisms freeze, they burst. Which property of water causes this to occur? a. Water is a universal solvent.
b. Water changes temperature rapidly.
c. Water is less dense as a solid than as a liquid.
Period:
Exit Slip 11
1. Which of the following was an original component of cell theory but has since been removed?
a. All living things are made of cells
b. Cells spontaneously generate from dead material
c. All cells come from pre-existing cells
d. cells are the basic structural and functional unit of live
2. Which of the following statements is true?
a. Eukaryotic cells are complicated and were the first cells
b. Eukaryotic cells are simple and were the first cells
c. Prokaryotic cells are complicated and were the first cells
d. Prokaryotic cells are simple and were the first cells
3. It is accepted that prokaryotic cells existed before eukaryotic cells. In fact, in a theory proposed by
Lynn Margulis, it is explained that several components of eukaryotic cells were once prokaryotic cells.
How can you differentiate between prokaryotic and eukaryotic cells?
a. Eukaryotic cells lack a nucleus that contains the cellular DNA
b. Prokaryotic cells lack a nucleus that contains the cellular RNA
c. Eukaryotic cells lack a nucleus that contains the cellular RNA
d. Prokaryotic cells lack a nucleus that contains the cellular DNA
4. Which of the following structures is found in both prokaryotic and eukaryotic cells?
a. Lysosome
b. Ribosome
c. Mitochondria
d. Nucleus
5. Which of the following structures are found only in prokaryotes?
a. flagella and ribosome
b. plasmid and cytoplasm
c. plasmid
d. mitochondria
Exit Slip 12
1. Which of the following is true of cell membranes?a. They are impermeable membranes that maintain the stable internal environment of the cell
b. They are completely permeable membranes that maintain the stable internal environment of the cell c. They are selectively permeable membranes that maintain the stable internal environment of the cell d. They are
2. Why do cells maintain their small size?
a. to keep a high surface area to volume ratio b. to keep a low surface area to volume ratio c. only because macromolecules are small d. they do not, cells are HUGE
3. What is the primary difference between diffusion and osmosis? a. Diffusion requires energy but osmosis does not
b. Osmosis requires energy input but diffusion does not
c. Diffusion is the movement of water from a high concentration to a low concentration while osmosis is the movement of any other substance from a high to a low concentration
d. Osmosis is the movement of water from a high concentration to a low concentration while diffusion is the movement of any other substance from a high to a low concentration
4. If a cell that usually lives in fresh water is placed in salt water (into a hypertonic solution), then… a. Water will leave the cell and the cell will shrink
b. Water will enter the cell and the cell will shrink c. Water will leave the cell and the cell will grow d. Water will enter the cell and the cell will grow
5. If a cell that usually lives in salt water is placed in fresh water (into a hypotonic solution), then… a. Water will leave the cell and the cell will shrink
b. Water will enter the cell and the cell will shrink c. Water will leave the cell and the cell will grow d. Water will enter the cell and the cell will grow
6. The sodium-potassium pump is a protein pump embedded in the phospholipid bilayer that pumps 3 sodium ions out of the cell and brings in 2 potassium ions. The sodium-potassium is an example of…
a. active transport because it requires energy and moves particles with their concentration gradients. b. active transport because it requires energy and moves particles against their concentration gradients c. passive transport because it requires energy and moves particles against their concentration gradients d. passive transport because it does not require energy and moves particles with their concentration gradients
BONUS: Sketch a cell membrane
Name:
Date:
Exit Slip 13
b. cell membrane. c. cell wall.
d. endoplasmic reticulum.
2. One difference between prokaryotes and eukaryotes is that a. chromosomes are found only in prokaryotes.
b. mitochondria are found in larger quantities in prokaryotes. c. Golgi bodies are found only in prokaryotes.
d. no membrane bound organelles are found in prokaryotes.
3. A cell, such as a muscle cell, that does a lot of work requiring energy would contain large numbers of… a. chromosomes.
b. mitochondria. c. vacuoles. d. chloroplasts.
4. What organelles are found in both plant and animal cells? a. nucleus, chloroplasts, cell membrane b. ribosomes, vacuole, chloroplasts c. ribosomes, nucleus, mitochondria d. cell wall, mitochondria, chloroplasts
5. Which of the following structures is found in both prokaryotes and eukaryotes? a. lysosome
b. Mitochondria c. Nucleus d. Ribosome
6. Inside the cell membrane is a gel like material which supports organelles and helps transport materials. This gel like material is called the
a. endoplasmic reticulum. b. vacuole.
c. Golgi body. d. cytoplasm.
7. The system of membranes inside a cell which synthesize proteins and lipids is called… a. cell wall.
b. endoplasmic reticulum. c. vacuole.
d. chloroplast.
8. The organelle that makes sugars (food) from light, air and water during photosynthesis is the a. Golgi body.
b. mitochondrion. c. chloroplast. d. nucleus.
9. The organelle that controls the cell by directing cell growth, development, and reproduction is the a. nucleus.
b. Golgi body. c. mitochondrion. d. ribosome.
10. Plant cells have large membrane bound spaces in which water, waste products, and nutrients are stored. These spaces are known as
a. mitochondria. b. nuclei. c. chloroplasts. d. vacuoles. 11. Chromatin is
b. located in the nucleus and are strands of RNA wrapped around proteins c. located in the nucleolus and are strands of DNA wrapped around proteins d. located in the nucleolus and are strands of RNA wrapped around proteins
12. The organelle that sorts and packages molecules made in the cell and then distributes them is the a. nucleus.
b. golgi apparatus. c. mitochondrion. d. ribosome.
Label the parts of the cell using the provided list: chloroplast, mitochondria, golgi apparatus, cytoplasm, nucleus, nucleolus, nuclear envelope, cell wall, cell membrane, and rough endoplasmic reticulum.
