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2 years ago

The transport of large substances out of the cell is accomplished by endocytosis. group of answer choices

Biology

1 answer:

Zanzabum2 years ago

8 0

Full question:

To transport large substance in and out of the cell, structures called _______ are made from the cell membrane.

Answer:

Vesicles.

<h3>What are vesicles?</h3>

The fundamental units of all living things are cells. Cells in organisms must be capable of carrying out a variety of tasks in order for the organism to live. The cells must transport molecules from one area of the cell to another in order to perform several of these jobs. Vesicles are used when a cell wants to transport a chemical repeatedly.

A lipid bilayer makes up the cellular organelles known as vesicles. Vesicles can be compared to cellular envelopes that carry things from one location to another. Vesicles are involved in both metabolism and the storage of enzymes.

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Calculate the mass defect for oxygen-16 given this data. Round to the 5es001-1.jpg decimal place. mass of an oxygen-16 atom: 15.

Naya [18.7K]

Answer:

Explanation:

Given parameters:

Mass of oxygen atom = 15.994914amu

Mass of a proton = 1.00728amu

Mass of a neutron = 1.00866amu

Unknown:

Mass defect = ?

From the periodic table, the number of the elementary particles in a neutral Oxygen atom is given below:

Number of protons = 8

Number of neutrons = 8

Number of electrons = 8

Solution

The mass defect examines the difference between the actual mass of an atom and sum of masses of the nucleons.

The mass of an atom is concentrated in the nucleus which contains protons and neutrons. Electrons have little to no weight compared with the nucleons.

To calculate the mass defect, we first know the mass of the nucleons first:

1 proton has a mass of 1.00728amu

8 protons will weigh: (8 x 1.00728)amu = 8.05824amu

For the neutrons:

1 neutron has a mass of 1.00866amu

8 neutrons will weigh: (8 x 1.00866)amu = 8.06928amu

Mass of the nucleons = mass of protons + mass of neutrons

= 8.05824amu + 8.06928amu

= 16.12752amu

The mass defect = mass of the nucleons - mass of the atom

= 16.12752amu - 15.994914amu

= 0.132606amu ≅ 0.13261amu to 5 decimal places

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3 years ago

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Which of the following is the legal term for an advance directive that specifies an individual's end-of-life wishes for medical

velikii [3]

Answer:

The legal term for an advance directive that specifies an individual's end-of-life wishes for medical treatment without necessarily appointing a designee to make legal decisions for him or her is called a living will

Explanation:

A living will is made when alive and it comprises of how one intend to distribute his/her wealth without any interfere by others decision even when dead. The documents must have been signed when alive by the individual

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3 years ago

How does the anaphase stage differ in the two phases of meiosis? Anaphase I separates sister chromatids and anaphase II separate

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The answer is <span>Anaphase I separates homologous chromosomes and anaphase II separates sister chromatids into daughter cells.</span>

Meiosis is a cell division which results in the reduction of chromosome number by half - from diploid to haploid - in daughter cells. It consists of meiosis I and meiosis II. Meiosis I produces two haploid cells. Meiosis II is analogous to mitosis, so in total, meiosis results in four haploid cells. So, in meiosis, there are two anaphases - the anaphase I in meiosis I and the anaphase II in meiosis II.

<span>In anaphase I, the sister chromatids separate from each other to the opposite sides of the cells. In meiosis I there are 46 chromosomes in duplicate, which are present as pairs of sister chromatids. In anaphase of meiosis II, since the cell is haploid, there are 23 chromosomes in duplicate, which are present as sister chromatids.</span>

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Can humans be cold-blooded?

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Humans are warm blooded and can't be cold blooded because of the environment we live in. We can't sit still during the winter and soak up warmth from the sun.

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3 years ago

Which statement about stable air is true?

PolarNik [594]

It tends to resist rising.

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