The saltwater causes osmosis, leading to water movement out of the zucchini cells, resulting in cell plasmolysis and a loss of firmness.
When a piece of zucchini is soaked in saltwater, the process primarily involves osmosis, leading to changes in the zucchini's texture and firmness. Osmosis is the movement of water across a semipermeable membrane, from an area of lower solute concentration to an area of higher solute concentration. In this case, the saltwater outside the zucchini cells has a higher solute concentration than the water inside the cells.
As the zucchini absorbs saltwater, water molecules within its cells begin to move outwards due to the osmotic pressure created by the higher concentration of salt outside. This results in the shrinking of the cell's cytoplasm away from the cell wall, a process known as plasmolysis. The loss of water from the cells causes the zucchini to become less turgid and firm.
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Answer:
The cells in the zucchini shrink because they lose their water.
Explanation:
salt dehydrates things drawing out the water from the cells.
A large area characterized by its climate and the plants and animals that live there is a(n) ______________________.
Answer:
Explanation:
The living parts of an environment are called biotic factor, nonliving are abiotic.
A large area characterized with a certain climate and species is a biome.
There is no definitive way to determine if someone is lying based solely on their eyemovements.
The idea that specific eye movements indicate deception, commonly known as "eye accessing cues," has been widely debunked. It is a myth that certain directions of eye movement correspond to lying or truth-telling.
While eye movements can provide some insights into a person's thought processes, they vary greatly among individuals and are influenced by various factors such as culture, personality, and context. Some people may naturally shift their gaze in a particular direction when thinking or recalling information, but this cannot be used as a reliable indicator of deception.
It is essential to consider a wide range of verbal and nonverbalcues, including body language, facial expressions, voice tone, and inconsistencies in their story, to assess potential deception. However, relyingsolely on eye movements to determine if someone is lying is not supported by scientific evidence and can lead to inaccurate judgments.
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The atomic number is the amount of electrons an atom has, therefore:
An atom with 66 as it's atomic number has 66 electron and 66 protons (if the atom is neutral, if not, things are different).
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BioTeacher101
b)growth factors
c)the mitotic spindle
d)cancer cells
Answer:
a) Cyclins
Explanation:
The internal regulators of the cell cycle are cyclins and CDK (cyclin-dependent kinase). These are proteins that regulate the cell cycle in different checkpoints.
The cyclin proteins stimulate another kind of protein i.e. CDK, which helps in the entry and exit of cells in different checkpoints. The checkpoints are G1, S, and G2 phases. Without this protein regulation the cell cycle can't run properly, nondisjunction of chromosomes, and cancer may result.
The growth factors help in the migration of cells in different parts of the body. This causes cellular growth. These include hormones and enzymes.
Mitotic spindle/spindle fibers separate the double number of chromosomes and put them equally in 2 daughter cells. During the cell cycle, the spindle fibers are not active. It is active in cell division.
Cancer cells are uncontrolled growth of cells. This results due to the failure of cell cycle regulators. Thus cells divide rapidly.