The four main classes of organic compounds (carbohydrates,
lipids, proteins, and nucleic acids) that are essential to the proper
functioning of all living things are known as polymers or
macromolecules. All of these compounds are built primarily of carbon,
hydrogen, and oxygen but in different ratios. This gives each
compound different properties.
Carbohydrates are used by the body for energy and structural
support in cell walls of plants and exoskeletons of insects and
crustaceans. They are made of smaller subunits called
nionosaccharides. Monosaccharides have carbon, hydrogen, and oxygen
in a 1:2:1 ratio. Monosaccharides or simple sugars include glucose,
galactose, and fructose. Although their chemical formulas are the
same, they have different structural formulas. These simple sugars
combine to make disaccharides (double sugars like sucrose) and
polysaccharides (long chains like cellulose, chitin, and glycogen). Color
code the glucose molecule on this worksheet (carbon-black, hydrogenyellow,
and oxygen-red). Use your textbook to help draw the
structural formulas for fructose and galactose:
Answer:
Bioluminescence
Explanation:
In the deep oceans, the sea cucumbers and polychaete worms use the bioluminescence for defense against predators and to find or attract prey by glowing so the predator can easily see it's glowing skin.
Answer:
b
Explanation:
There were three models for how organisms might replicate their DNA: semi-conservative, conservative, and dispersive.
The semi-conservative model, in which each strand of DNA serves as a template to make a new, complementary strand, seemed most likely based on DNA's structure.
The models were tested by Meselson and Stahl, who labeled the DNA of bacteria across generations using isotopes of nitrogen.
From the patterns of DNA labeling they saw, Meselson and Stahl confirmed that DNA is replicated semi-conservatively.
Mode of DNA replication
Imagine yourself in 1953, after the double helix structure of DNA has just been discovered^1
1
start superscript, 1, end superscript. What burning questions might be on your mind, and on the minds of other scientists?
One big question concerned DNA replication. The structure of the DNA double helix provided a tantalizing hint about how copying might take place^{1,2}
1,2
<h2>Material Do Alice and Julio Likely Work - Option B</h2>
Alice and Julio’s company makes protective coverings for off-roading vehicles. Alice’s job involves harvesting a natural polymer from trees. Julio’s job is to take that material and change it chemically to create a synthetic polymer.
Alice and Julio most likely work with natural rubber and vulcanized rubber. Alice works with natural rubber, and Julio works with vulcanized rubber.
D) egg in Kayro syrup
Explanation:
An egg in Kayro syrup will experience plasmolysis. During the process of plasmolysis a body loses water to another one at a higher concentration. Fresh water organisms suffers plasmolysis because in salt water, the concentration of dissolved salt in the water is high and this makes the water hypertonic to their body.
- In a hypertonic solution, the egg will lose water and begins to shrink in the Kayro syrup.
- The Kayro syrup is hypertonic to the egg and by so doing, it will lose water to it.
Learn more:
Diffusion and osmosis brainly.com/question/5825825
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