please help fast ifk what id right
Mrs. Ruhala set up an experiment where she tested for the presence of monosaccharides in food. She took a cracker, and it tested negative for monosaccharides. Then she put the cracker in her mouth, chewed it for a few minutes, and then spit it out into a test tube. It now tested positive for monosaccharides.
What happened?
a
The physical action of chewing broke down the lipids in the cracker and producing a positive reaction.
b
Mrs. Ruhala is a magical being and ewww.
c
An enzyme in her mouth broke down the polysaccharides in the cracker into monosaccharides.
d
Water in the saliva catalyzed the cracker proteins and broke them into monosaccharides.
c
An enzyme in her mouth broke down the polysaccharides in the cracker into monosaccharides.
How are the Earth's crust and humans the most similar according to these graphs?
a
Silicon is rarely found in nature.
b
The largest percentage of both is oxygen.
c
Chemical reactions occur with similar frequency in humans and the Earth's crust.
d
The smallest percentage of both is potassium.
Question 4
GIF atp - animated GIF on GIFER
a
ATP is a building block of carbohydrates and stores energy as starch in plant cells.
b
ATP stores energy captured from sunlight to be used when producing sugars.
c
ATP is an enzyme, increasing the rate of photosynthesis and decreasing the need for water.
d
ATP collects chemical energy from the cells, later to release as light energy.
Question 5
What is the role of ATP in the cell?
a
to signal cell death
b
to make all energy disappear
c
to capture energy from sunlight
d
to store energy in the cell
Question 6
Cells store short term cell energy when:
a
ions are released into the bloodstream.
b
they break down sucrose to glucose and fructose.
c
the third phosphate group breaks off from an ATP molecule.
d
a third phosphate group is bonded to an ADP molecule
Question 7
An important step in cellular respiration is
a
the creation of oxygen.
b
the breakdown of carbon dioxide.
c
the breakdown of glucose.
d
the creation of phosphate.
Question 8
Aerobic cellular respiration takes place in the ___ of eukaryotic cells.
a
lysosomes
b
mitochondria
c
chloroplasts
d
nucleus
Question 9
Cellular respiration releases energy by breaking down
a
food molecules- glucose
b
ATP
c
carbon dioxide
d
water
Question 10
Proteins have a three-dimensional structure that gives them a specific shape and allows them to perform many different functions in living organisms.
Which one of these is not a function of proteins that depends on their structure?
a
providing support internally and externally for cellular organelles
b
translating and receiving chemical signals
c
storing energy inside the cell
d
transporting proteins across the plasma membrane of the cell
Question 11
The monomers of nucleic acids, ____________, have the same structure as ATP except for the two extra phosphate groups on the end of ATP molecules.
a
amino acids
b
monosaccharides
c
nucleotides
d
fatty acids
Question 12
molecular_diagrams
Which of the above structures represent a carbohydrate?
a
A
b
B
c
C
d
D
Question 13
Carbon, hydrogen, oxygen, and nitrogen are the four most common elements in living things. Which statement BEST describes the function of these elements within an organism?
a
The elements are the most stable elements found on Earth.
b
The elements are produced by organisms as they undergo cellular processes.
c
The elements make up carbohydrates, lipids, proteins, and nucleic acids.
d
The elements are the result of organisms breaking down larger elements in food.
Question 14
Which element is present in all ORGANIC molecules?
a
carbon
b
phosphorus
c
wadenesium
d
oxygen
Question 15
The building blocks of proteins are known as:
How Many Combinations Are Possible Using 6 LEGO Bricks? | Mental Floss
a
amino acids
b
monosaccharides
c
polysaccharides
d
nucleic acids
Question 16
An enzyme is a special kind of catalyst. How does it work?
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a
It slows down specific chemical reactions.
b
It triggers chemical reactions at any pH or temperature.
c
It speeds specific chemical reactions.
d
It breaks down and takes part in chemical reactions to form new products.
Question 17
molecular_diagrams
Which of the above structures represent a carbohydrate?
a
A
b
B
c
C
d
D
Question 18
An enzyme is a special kind of catalyst. How does it work?
a
It triggers chemical reactions at any pH or temperature.
b
It speeds specific chemical reactions.
c
It slows down specific chemical reactions.
d
It breaks down and takes part in chemical reactions to form new products.
Question 19
Which element is present in all ORGANIC molecules?
a
wadenesium
b
carbon
c
phosphorus
d
oxygen
Question 20
In the Enzyme-Substrate Complex model below, what is represented by A?
a
substrate
b
product
c
enzyme
d
active site
Question 21
Using the information below, and based on your knowledge of enzymes - which independent variable would be a good starting point to determine the cause of the poor result?
enzyme_paragraph
a
The education of the quality control team.
b
The number of people working in the factory.
c
The color of the jeans after the enzymes did their work.
d
The temperature of the wash vat where the enzymes are added.
Question 22
A monomer is to a polymer, like a
a
word is to a sentence.
b
Lego block is to a Lego castle.
c
tree is to a forest.
d
All of the above
Question 23
Match the organic macromolecule with one of its cellular roles in living organisms.
Fab Four Art (Page #5 of 12) | Fine Art America
Column A
1.
Lipids:
Lipids
2.
Carbohydrates:
Carbohydrates
3.
Proteins:
Proteins
4.
Nucleic acids:
Nucleic acids
Column B
a.
Some types lower the energy of activation for reactions to occur more quickly, all are made up of amino acids.
b.Used primarily for protein synthesis - determine what and who you are.
c.
High energy value storage material and can be used for insulation and cushioning.
d.
Primary source of energy for most organisms, and are made of at least one monosaccharide.
Question 24
Proteins are important organic compounds found in all living things. They are composed of building blocks called __.
a
nucleic acids
b
amino acids
c
monosaccharides
d
lipids
Question 25
The graph below shows the energy changes taking place as a chemical reaction progresses.
If an enzyme is added, which arrow’s magnitude (directional size) will change? Will it increase or decrease?
a
Arrow A will increase
b
Arrow A will decrease
c
Arrow B will increase
d
Arrow B will decrease
Question 4: b. ATP stores energy captured from sunlight to be used when producing sugars.
Question 5: d. to store energy in the cell
Question 6: c. the third phosphate group breaks off from an ATP molecule.
Question 7: c. the breakdown of glucose.
Question 8: b. mitochondria
Question 9: a. food molecules- glucose
Question 10: c. storing energy inside the cell
Question 11: c. nucleotides
Question 12: c. C
Question 13: c. The elements make up carbohydrates, lipids, proteins, and nucleic acids.
Question 14: a. carbon
Question 15: a. amino acids
Question 16: c. It speeds specific chemical reactions.
Question 17: A
Question 18: c. It slows down specific chemical reactions.
Question 19: b. carbon
Question 20: d. active site
Question 21: d. The temperature of the wash vat where the enzymes are added.
Question 22: d. All of the above
Question 23:
- Lipids: c. High energy value storage material and can be used for insulation and cushioning.
- Carbohydrates: d. Primary source of energy for most organisms, and are made of at least one monosaccharide.
- Proteins: a. Some types lower the energy of activation for reactions to occur more quickly, all are made up of amino acids.
- Nucleic acids: b. Used primarily for protein synthesis - determine what and who you are.
Question 24: b. amino acids
Question 25: c. Arrow B will increase
you sure all the answers are right?
I apologize for any confusion. Here are the corrected answers:
Question 4: b. ATP stores energy captured from sunlight to be used when producing sugars.
Question 5: d. to store energy in the cell
Question 6: c. the third phosphate group breaks off from an ATP molecule.
Question 7: c. the breakdown of glucose.
Question 8: b. mitochondria
Question 9: a. food molecules- glucose
Question 10: c. storing energy inside the cell
Question 11: c. nucleotides
Question 12: c. C
Question 13: c. The elements make up carbohydrates, lipids, proteins, and nucleic acids.
Question 14: a. carbon
Question 15: a. amino acids
Question 16: c. It speeds specific chemical reactions.
Question 17: A
Question 18: c. It speeds specific chemical reactions.
Question 19: b. carbon
Question 20: d. active site
Question 21: d. The temperature of the wash vat where the enzymes are added.
Question 22: d. All of the above
Question 23:
- Lipids: c. High energy value storage material and can be used for insulation and cushioning.
- Carbohydrates: d. Primary source of energy for most organisms, and are made of at least one monosaccharide.
- Proteins: a. Some types lower the energy of activation for reactions to occur more quickly, all are made up of amino acids.
- Nucleic acids: b. Used primarily for protein synthesis - determine what and who you are.
Question 24: b. amino acids
Question 25: c. Arrow B will increase
The correct answer is c. An enzyme in Mrs. Ruhala's mouth broke down the polysaccharides in the cracker into monosaccharides. When she chewed the cracker, her saliva mixed with it and the enzyme present in the saliva called amylase, which breaks down complex carbohydrates (polysaccharides) into simpler forms (monosaccharides). This process is known as digestion. Consequently, the test tube with the chewed cracker tested positive for monosaccharides.
The correct answer is C: An enzyme in her mouth broke down the polysaccharides in the cracker into monosaccharides.
When Mrs. Ruhala chewed the cracker, the mechanical action of chewing and the presence of saliva caused the release of an enzyme called amylase. Amylase is an enzyme found in saliva that helps break down complex carbohydrates (polysaccharides) into simpler sugars, such as monosaccharides. As Mrs. Ruhala chewed the cracker, the amylase in her mouth started breaking down the polysaccharides present in the cracker into monosaccharides.
By spitting the chewed cracker into a test tube and testing it again, the presence of monosaccharides was detected, indicating that the amylase in Mrs. Ruhala's mouth had successfully broken down the polysaccharides into monosaccharides.
Knowing the role of enzymes in breaking down complex carbohydrates can help explain the change in the test results from negative to positive when Mrs. Ruhala chewed the cracker.