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WorksheetsFinal Day 1
Total questions: 20
Worksheet time: 39mins
Name
Class
Date
1.
An iodine solution is placed on the cut side of a potato. Within seconds, a blue-black color appears. What is most likely occurring?
a)
A positive test for proteins
b)
A positive test for starches
c)
A negative test for proteins
d)
A negative test for starches
2.
Which organelle is the site where amino acids are synthesized into proteins?
a)
Nucleus
b)
Ribosome
c)
Golgi apparatus
d)
Mitochondria
3.
This diagram shows the cell cycle.
Which of the following activities occur in the S phase?
Which of the following activities occur in the S phase?
a)
Replication of the DNA
b)
Growth of the cell
c)
Formation of the mitotic spindle
d)
Breakdown of the nuclear membrane
4.
RNA and DNA are which type of organic compound?
a)
Lipids
b)
Carbohydrates
c)
Nucleic Acids
d)
Proteins
5.
A scientist treats a cell with a chemical that destroys the ribosomes. As a result, which cell process will be stopped?
a)
Osmosis
b)
Protein Synthesis
c)
Photosynthesis
d)
Cellular Respiration
6.
This diagram shows an enzyme-substrate complex.
Which is represented by Structure X?
Which is represented by Structure X?
a)
Substrate
b)
Enzyme
c)
Complex
d)
Product
7.
Which is the most likely function of a group of cells that contain a high number of chloroplasts?
a)
Respiration
b)
Transpiration
c)
Photosynthesis
d)
Fermentation
8.
What will most likely happen if an appropriate enzyme is added to a chemical reaction?
a)
The reaction rate will increase
b)
The reaction rate will decrease
c)
The reaction will stop
d)
It will explode
9.
Which process is an example of asexual reproduction?
a)
An amoeba divides in half to form two amoebas.
b)
A bee transfers pollen from one flower to another.
c)
A female fish deposits eggs on a rock, then a male fish releases sperm on them.
d)
Earthworms exchange sperm
10.
A researcher is studying a particular disease-causing agent. The agent has a protein coat, but it lacks a nucleus, contains no other organelles, and can reproduce only when it is inside an animal cell. The researcher should classify the agent as which of the following?
a)
A bacterium
b)
A fungus
c)
A virus
d)
A protist
11.
This diagram shows the cell cycle.
Which of the following activities occur in the G1 phase?
Which of the following activities occur in the G1 phase?
a)
Replication of the DNA
b)
Growth of the cell
c)
Formation of the mitotic spindle
d)
Breakdown of the nuclear membrane
12.
Energy for most chemical reactions in cells is supplied by which of the following molecules?
a)
DNA
b)
ATP
c)
RNA
d)
Hemoglobin
13.
Which pair of structures best shows that plant cells have functions different from animal cells?
a)
Cytoplasm and mitochondria
b)
Chloroplasts and cell wall
c)
Ribosome and golgi
d)
Nucleus and cell membrane
14.
Meiosis is the process by which gametes are produced. In which of the following human organs would meiosis occur?
a)
Liver
b)
Stomach
c)
Testis
d)
Lungs
15.
What is the function of enzymes in biological systems?
a)
Enzymes act as substrates when the necessary proteins are unavailable.
b)
Enzymes act as products to create new chemical reactions.
c)
Enzymes act as catalysts to drive chemical reactions forward.
d)
Enzymes bond with substrates to create the new reaction products.
16.
Which of the following macromolecules are a prominent part of animal tissues that function in insulation, helping animals conserve heat?
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic acids
17.
Some peeled pieces of apple were placed in distilled water and some in very salty water. The cells in the apple pieces will…
a)
Lose water in both solutions
b)
Gain water in both solutions
c)
Lose water in the distilled water and gain water in the salty water
d)
Gain water in the distilled water and lose water in the salty water
18.
a)
Prophase
b)
Metaphase
c)
Telophase
d)
Interphase
19.
Papain, an enzyme in papaya, breaks down polymers composted of amino acids. Which of the following substances does papain break down?
a)
carbohydrates
b)
fatty acids
c)
nucleic acids
d)
proteins
20.
Which biomolecule helps form muscles?
a)
Nucleic Acid
b)
Carbohydrate
c)
Protein
d)
Lipids
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