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3 years ago

What is the use of cytoplasm?

Biology

2 answers:

fomenos3 years ago

7 0

Answer:

1. Cytoplasm is responsible for giving a cell its shape.

2. The cytoplasm where numerous vital cellular reactions like anaerobic glycolysis and protein synthesis take place.

3. Another main function of the cytoplasm is to hold the cell organelles of the cell.

4. Cytoplasm contains molecules such as enzymes.

Explanation:

1. Cytoplasm is responsible for giving a cell its shape. It helps to fill out the cell and keeps organelles in their place.

2. Apart from storing various nutrients, the cytoplasm is that location where numerous vital cellular reactions (like anaerobic glycolysis and protein synthesis) and activities take place.

3. The main function of the cytoplasm is to hold the cell organelles of the cell. Cell organelles are basically components of the cell which control all the activities of the cell.

4. Cytoplasm contains molecules such as enzymes which are responsible for breaking down waste and also aid in metabolic activity.

In-s [12.5K]3 years ago

5 0

Answer:

It maintains the shape of the cell

It helps in cell movement

It helps in material exchange

Explanation:

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7. Phytochrome prevents seeds of some plants from germinating when they are in deep shade by the: absorption of far-red waveleng

SIZIF [17.4K]

<h2>Function of Phytochrome </h2>

Explanation:

The color of light that they absorb maximally by the two types such as Pfr is a blue-green structure that ingests far-red light (730 nm) and Pr is a blue structure that retains red light (660 nm)
Pfr assimilates far-red light, it is changed over to the Pr structure
Pfr can spontaneously revert to the Pr form structure in obscurity dark over time = dark reversion Pfr is additionally helpless to proteinases
Pfr contains some red light, so in red light 15% Pr and there is a parity of 85% Pfr.
The phytochrome (Pr) is changed over to the organically dynamic structure red light with the Pfr under illumination
Darkness and Far -red light convert the particle back to the inactive form.

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3 years ago

In 1958, Meselson and Stahl conducted an experiment to determine which of the three proposed methods of DNA replication was corr

Katen [24]

<h2>Meselson and Stahl conducted an experiment to determine the correct proposed methods of DNA replication was semi-conservative. the three proposed models for DNA replication are semi-conservative, conservative, and dispersive.</h2>

Explanation:

In Semi-conservative replication model, the two strands of DNA uncoil from each other. It perform with the original strand and a new strand.

In Conservative replication model, DNA replication didn't open at all, but the parent strands remains undamaged by creating a new and separate molecule that consists of two new strands.

In Dispersive replication model, DNA replication results in two DNA molecules that consists of both parental and daughter DNA.

He demonstrated that semi-conservative DNA replication is an universal mechanism allocated by all organisms on Earth.

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3 years ago

Movement of the chromosomes during anaphase would be most affected by a drug that

My name is Ann [436]

Answer:

The options are missing, the options are:

A) prevents the duplication of centrosomes. B) prevents nuclear envelope fragmentation C) prevents shortening of microtubules. D) prevents attachment of the microtubules to the kinetochore. E) prevents nucleosome formation

The answer is C

Explanation:

Cell division is a characteristics of all living cells. Whether meiosis or mitosis, the chromosomes separate in the Anaphase stage. Prior to the anaphase stage is the metaphase, where spindle microtubules attach to the kinetochores of each chromosome and aligns them at the centre of the cell called METAPHASE PLATE.

Thus, since the aligning of chromosomes at the metaphase plate has to do with attachment of microtubules to chromosomes' kinetochores, the drug that will hinder movement of chromosomes to opposite poles will not stop formation of microtubules. Instead, it will prevent the formed microtubules attached to each chromosome from shortening, as it is the shortening of microtubules that facilitates the pulling apart of the chromosomes they are attached to.

4 0

3 years ago

The ABO blood group assorts independently of the Rhesus (Rh) blood group and the MN blood group. Three alleles, IA , IB , and i,

Eva8 [605]

Answer:

Part 1:

The mother’s genotype is ii, rr, MN

The father’s genotype is IAIA/IAi, Rr, MM

Part 2:

Approximately 1/32 (3.125%) of children can be expected to have the stated blood types.

Explanation:

Part 1:

The mother has blood types 0, Rh- and MN. Therefore, her genotype has to be ii, rr, MN.

The father has ABO type A. His ABO genotype may therefore be either IAIA or IAi, as both are compatible with type A offspring with a type 0 mother. His Rh genotype must be rr, since his Rh- child necessarily has to have inherited one r allele from each parent. Finally, his MN genotype has to be MM since both alleles are codominant.

Part 2:

Using the given data, we build the following Punnett chart:

IA R N IA r N i R N i r N

IA R M

IA R N

IA r M

IA r N

IB R M

IB R N

IB r M X

IB r N

Note that, of all 32 possible combinations, only a single one of them (marked with “X” produces a genotype which matches the desired blood type, as follows:

genotype: IBi, rr, MN

blood type: B, Rh-, MN

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3 years ago

Two differences between hormones and the nervous system

leva [86]

Answer:

Hormones can be proteins, lipids or cholesterol-based molecules. Neurotransmitters are protein. The main difference between hormones and neurotransmitters is that Hormones are produced in the endocrine glands and released into the bloodstream where they find their movement targets at a distance from their origin. In contrast, Neurotransmitters are released into the synaptic space by a terminal of an excited presynaptic nerve cell and transmit a nerve signal to the neighboring postsynaptic nerve cell.

Explanation:

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3 years ago

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