Molecular Biology CFA
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Crest Middle School Common Formative Assessment for Molecular Biology
- 1.Why are photosynthesis and respiration considered opposite processes?
- A.
Photosynthesis happens during the night;respiration happens during the day
- B.
Photosynthesis happens during the day; respiration happens during the night
- C.
The products of photosynthesis are the reactants for respiration
- D.
Photosynthesis occurs in eukaryotes and respiration occurs in prokaryotes
- 2.Why are plant cells, animal cells, fungi, and protists considered eukaryotes?
- A.
Because each of their cells has a cell nucleus.
- B.
Because each of their cells goes through photosynthesis.
- C.
Because each of their cells lacks a cell nucleus.
- D.
Because each of their cells has a cell wall.
- 3.During mitosis, what happens to the chromosomes in metaphase?
- A.
They move to opposite ends of the cell.
- B.
They split in half.
- C.
They uncoil and are surrounded by a new nuclear envelope.
- D.
They line up in the middle of the cell.
- 4.Which organelle is responsible for producing proteins?
- A.
Ribosomes
- B.
Golgi bodies
- C.
Endoplasmic reticulum
- D.
Lysosomes
- 5.Which organelle is much larger in the plant cell than the animal cell, and why?
- A.
Nucleus; because plants have many leaves
- B.
Golgi bodies; because plants have more DNA
- C.
Endoplasmic reticulum; because plants use water for respiration
- D.
Vacuole; because plants need to store water for photosynthesis
- 6.What happens to the carbon dioxide produced during cellular respiration?
- A.
It returns to the lungs where it is exhaled.
- B.
It travels to your stomach to be broken down by acids.
- C.
It is stored in cells to provide the cell with energy.
- D.
It remains in cells to provide the cell with protein.
- 7.Which of the following statements is not a part of cell theory?
- A.
All living things are made of cells.
- B.
Cells come from other cells.
- C.
Cells always contain a nucleus.
- D.
Cells are the basic unit of structure and function in all livign things.
- 8.Which statement best explains the reason muscle cells have more mitochondria than skin cells?
- A.
Muscle cells use more energy than skin cells.
- B.
Muscle cells have fewer protein than skin cells.
- C.
Muscle cells have a smaller nucleus than skin cells.
- D.
Muscle cells contain more water than skin cells.
- 9.What is the role of cytoplasm in a living cell?
- A.
Fight infections
- B.
Digest proteins
- C.
Surround organelles
- D.
Pass on genetic information
- 10.Some women who took the drug thalidomide in early pregnancy gave birth to children with severe birth defects. Which is thalidomide considered to be?
- A.
Antibiotic
- B.
Mutagen
- C.
Vaccine
- D.
Virus
- 11.What is the energy source that an animal cell needs to carry out life processes?
- A.
Water stored in vacuoles
- B.
Proteins built in ribosomes
- C.
Light absorbed by chloroplasts
- D.
Sugar broken down in mitochondria
- 12.
![Look closely at the picture below.
Which phase of mitosis is shown in the picture?]( "Look closely at the picture below.
Which phase of mitosis is shown in the picture?")
Look closely at the picture below. Which phase of mitosis is shown in the picture?- A.
Metaphase
- B.
Anaphase
- C.
Interphase
- D.
Telophase
- 13.Humans can not make our food so we need organelles such as ___________ to help store our food so we can turn it into energy by using our ___________.
- A.
Vacuoles; lysosomes
- B.
Mitochondria; nucleus
- C.
Mitochondria; ribosomes
- D.
Vacuoles; mitochondria
- 14.What could happen to the planet if all plants were removed from Earth?
- A.
Nitrogen would build up in the air
- B.
Oxygen levels would drop sharply
- C.
Uranium could no longer be mined
- D.
There would be no significant impact
- 15.Animals and plants get their food in different ways. Animals usually ingest their food, while plants must produce their own food. The process through which plants produce their food is called ______________ and occurs in the ______________ of the cell.
- A.
Germination; mitochondria
- B.
Photosynthesis; chloroplasts
- C.
Respiration; chloroplasts
- D.
Pollination; mitochondria
- 16.
![The equation for photosynthesis is shown. Which of these is required to complete the equation for photosynthesis?]( "The equation for photosynthesis is shown. Which of these is required to complete the equation for photosynthesis?")
The equation for photosynthesis is shown. Which of these is required to complete the equation for photosynthesis?- A.
Carbon
- B.
Carbon dioxide
- C.
Nitrogen
- D.
Oxygen
- 17.In an organism, which organelle functions as a place to store extra water?
- A.
Endoplasmic reticulum
- B.
Ribosome
- C.
Vacuole
- D.
Golgi body
- 18.What is TRUE about the inside of an animal cell?
- A.
A. The inside of an animal cell contains structures that carry out specialized functions for the cell, and is completely solid.
- B.
B. The inside of an animal cell contains water and nutrients dissolved in the water, but no structures that perform specialized functions for the cell.
- C.
C. The inside of an animal cell contains air and structures that perform specialized functions for the cell, but no water.
- D.
D. The inside of an animal cell contains water, nutrients dissolved in the water, and structures that perform specialized functions for the cell.
- 19.What is the smallest unit of life in all living things called?
- A.
Atom
- B.
Bacteria
- C.
Cell
- D.
Molecule
- 20.Which two structures do plant cells have that animal cells do not have?
- A.
Cell wall and chloroplast
- B.
Ribosome and nucleus
- C.
Cell membrane and chloroplast
- D.
Mitochondrion and ribosome
- 21.Which is an example of a disease that can be caused by smoking cigarettes?
- A.
Diabetes
- B.
Allergies
- C.
Lung cancer
- D.
Influenza
- 22.Prolonged consumption of alcohol is most likely to cause which of the following diseases?
- A.
Liver disease
- B.
Lung cancer
- C.
Ashtma
- D.
Diabetes
- 23.When examining the process of cellular respiration, which statement best desribes the relationship between breathing and digestion?
- A.
Breathing provides the carbon dioxide necessary for cellular respiration to occur, while digestion provides the sugar.
- B.
Breathing provides the oxygen necessary for cellular respiration to occur, while digestion provides the sugar.
- C.
Breathing provides the water necessary for cellular respiration to occur, while digestion provides the nitrogen.
- D.
Breathing provides the hydrogen necessary for cellular respiration to occur, while digestion provides the water.
.gif "Look closely at the picture below.
Which phase of mitosis is shown in the picture?")
.bmp "The equation for photosynthesis is shown. Which of these is required to complete the equation for photosynthesis?")
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