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3 years ago

Whats the movement of large molecules into a cell using vesicles and using ATP

2 answers:

8 0

This is known as active transport and ATP supplies the energy currency. This type of transport involves cell organelles known as vesicles. In vesicular transport, vesicles allow large molecules to exit the cell because the vesicle fuses with the plasma membrane and its contents spill out. This is called exocytosis.

Hope this helps

krek1111 [17]3 years ago

7 0

grayv is correct i agree 100%

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How does lung volume control inspiration?

Nataly [62]

<span> A decrease in lung volume decreases the pressure within the lungs so air can flow inside. </span>

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2 years ago

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HELP ME IM TO"not smart* AND I NEED THE ANSWER

fiasKO [112]

Given Proposition: The Shark Population has increased. This is assuming that we only base it off of the given food tree, rather than using the food web, which is more factually correct. This means that the sharks in the area can only eat sea otters, and that sea star populations and sea otters can only eat clams.

1) In this case, the shark population increases. This generally means that the sea otter population by itself has increased, suggesting a positive net change within the given food chain. However, with increased shark populations, would mean a damage to the amount of sea otters in the area. This can create an underpopulation of sea otters, which, if sea stars were not a factor, can mean a increase of clam population.

However.

2) Sea stars are a part of the food chain given. Therefore, it can be suggested that while the sea otter population may stabilize and/or diminish, the sea star has no "predator". This means that with the decrease of the sea otter population, the sea star population may actually grow, as the competition for the same source diminishes. Again, with the demand taking over the need, the sea star population may fall once again due to overfeeding, and essentially starvation.

In essence:

Shark Population: Increased

Sea Otter Population: Decreases (is eaten)

Therefore, Clam Population is speculated to increase.

However, the Sea star population would thereby increase due to having more food.

A larger sea star population in which the clam population cannot sustain would collapse, leading to a fall.

Also, due to the smaller amounts of sea otters in the area, the shark population may also see to an decrease of population, as they die from starvation.

The sea otter population would then stabilize when the predatory amounts or less, and their competition collapses.

Of course, there will always be a "food web". Sea otters do not solely rely on clams, neither do sharks solely rely on otters.

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2 years ago

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In garden peas, one pair of alleles controls the height of the plant, and a second pair of alleles controls flower color. The al

Lerok [7]

Answer:

The parent's genotypes are:

Ddpp - tall, white parent

ddPp - dwarf, purple parent.

Explanation:

This question involves two different genes coding for height and flower color in pea plants. The alleles for tallness (D) and purple color (P) are dominant over the alleles for dwarfness (d) and white color (p) respectively.

According to this question, a tall plant with white flowers is crossed with a dwarf plant with purple flowers to produce the following proportion of offsprings: 1/4 tall purple, 1/4 tall white, 1/4 dwarf purple, and 1/4 dwarf white.

Since some of the offsprings contain recessive alleles for both or either genes, the dominant traits of the parent is controlled by an heterozygous genotype. This means that the tall plant with white flowers has a genotype: Ddpp while the dwarf plant with purple flowers has the genotype: ddPp. In a cross between Ddpp × ddPp, 1/4 of each combination of alleles is produced in the offsprings (see punnet square in the attachment).

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3 years ago

A disadvantage of solar energy is the need for ___

Alisiya [41]

Answer:

Sunlight

Explanation:

Sunlight is not provided 24 hours a day so during nightfall solar panels will not have the ability to collect energy.

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2 years ago

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Which of the cell junctions is involved in creating a barrier between cells?

aleksklad [387]

Tight junctions are cell junctions that seal tissues. These junctions form protective and functional barriers.

The cell junction that is involved in creating a barrier between cells is the TIGHT junction.

The tight junctions are cell-cell adhesion structures implicated in cell polarity and signaling.

On the other hand, adherens junctions are cell junctions required for maintaining contact inhibition.

Finally, desmosomes are intercellular junctions that bind intermediate filaments of the cytoskeleton with cadherin proteins.

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brainly.com/question/13605066?referrer=searchResults

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3 years ago