This reduction in starch content occurred because starch was changed into simple sugars
<h3>Explanation:
</h3>
Starch is a polymeric carbohydrate consist of many glucose units linked by glycosidic bonds. The iodine test is used to test for the presence of starch. Starch will change color to an intense "blue-black" colour after the addition of aqueous solutions of the triiodide anion. To do it we can add Iodine-KI reagent to a solution or directly on a potato or other materials such as bread, crackers, or flour The reaction between amylose that present in lesser amounts and iodine is said to account for the intense color change seen.
An iodine test of a tomato plant leaf revealed that starch was present at 5:00 p.m. on a sunny afternoon in July. When a similar leaf from the same tomato plant was tested with iodine at 6:00 am the next morning, the test indicates that less starch was present in this leaf than in the leaf tested the day before. This reduction in starch content occurred because starch was
- 1. changed directly into proteins
- 2. transported out of the leaves through the guard cells
- 3. transported downward toward the roots through tubes
- 4. changed into simple sugars
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The nucleus would not split into two, therefore, they will not divide correctly
The three main features of a prokaryotic
cell
We have its insides:
<span><span>1.
</span>Cytoplasm. Cytoplasm
is where its organelles are suspended.</span>
<span><span>2.
</span>Ribosomes. These
ribosomes facilitate in manufacturing the cell’s proteins used in many cellular
activities.</span>
<span><span>3.
</span>Plasmid. It
is a tiny DNA molecule.</span>
<span><span>4.
</span>Nucleoid. The
genophore of a prokaryotic cell where its genetical material are found.</span>
Externally prokaryotic cells
have:
<span><span>1.
</span>Capsules.</span>
<span><span>2.
</span>Flagellum. A
tail</span>
<span><span>3.
</span>Pili. A hair-like
structure on its surface.</span>
The scientific method is a problem-solving approach used in Biology and other scientific disciplines. This method has five basic steps which help scientists test their hypotheses. The first step of the scientific method is to make an observation. In this particular example, the scientist observes probably that salt has chemical and physical properties which could affect the life cycle of bacteria. The second step would be to ask a question and that would be to ask whether salt indeed has any effect on that particular type of bacteria that he/she studies. The third step would be to form a hypothesis and that would be to state that the specific bacterial type will be strongly affected by the salt. The fourth step would be to predict that if the scientist exposed this bacterial type to a salty environment, the bacteria would not survive. The fifth and final step is to test this prediction and if the bacteria do not survive, then the scientist can conclude that salt affects this bacterial type.
The ecosystem of the forest is formed by the interaction between the abiotic and biotic factors. Abiotic factors are the non-living factors: water, temperature,light,cloud cover, and soil. Biotic factors oh the other hand are the living organisms. Tropical rain forests<span> are hot, moist forests found near Earth's equator.</span>
Temperate rain forests are cool and dry.
Abiotic factors in temperate rain forest:
1. Temperature:The climate in the temperate rain forests is mild.
2. Water: moist and lush.
3. Light: many clouds block the sunlight.
4. Soil: nutrition rich.
Biotic factors:<span>beavers, raccoons , cougars and black bears. </span>
Abiotic factors in tropical rain forest:
1. Temperature: hot, near the Earth's equator
2. Water:60
to 160 inches of precipitation
Biotic factors: the greatest
biodiversity in the world<span>,
rubber and bamboo trees, sloths, anteaters, poison dart frogs, </span>
