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kvv77 [185]
4 years ago
12

Cytoskeletal elements play important roles in cell division. The mitotic spindle apparatus is made of ________ and pulls sister

chromatids apart, whereas the contractile ring is made of ________ and required for the separation of daughter cells at the end of the mitotic phase of the cell cycle.
Biology
1 answer:
Veseljchak [2.6K]4 years ago
3 0

Answer:

Cytoskeletal elements play important roles in cell division. The mitotic spindle apparatus is made of "microtubules" and pulls sister chromatids apart, whereas the contractile ring is made of "actin filaments" and required for the separation of daughter cells at the end of the mitotic phase of the cell cycle.

Explanation:

The three chief organizational apparatuses of the cytoskeleton are microtubules (formed by tubulins), microfilaments (formed by actins) and intermediate filaments. All three apparatuses cooperate with each other non-covalently. The cytoskeleton is composed of protein filaments and is found throughout the inside of a eukaryotic cell. The cytosol is the main component of the cytoplasm, the fluid that fills the inside of the cell. The cytoplasm is everything in the cell except for the cytoskeleton and membrane-bound organelles.

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Effects of Cycles on Ecosystems
dybincka [34]

Answer:

The atmosphere

Explanation:

The major reservoir of carbon in the abiotic environment is the atmosphere where it occurs as carbon dioxide. Atmospheric carbon dioxide is used by green plants for the synthesis of organic compounds through photosynthesis.

8 0
3 years ago
Visual Reading Tool: Inside a Chloroplast
Ghella [55]

Answer:

A) Light dependent reactions

Reactants: light, H2O

Products: Oxygen gas

B) Light independent reactions

Reactants: C02

Products: Glucose

2. NADPH is an electron carrier which transfers electrons in the electron transport chain of photosynthesis

3. Light reactions occur in the THYLAKOID membrane.

Explanation:

As depicted in the image in this question, the photosynthetic process can be grouped into two stages viz; light dependent reactions and light independent reactions. The light dependent reactions, which take place in the THYLAKOID MEMBRANE of the Chloroplast, involves the synthesis of ATP (energy carrier) and NADPH (electron carrier) to be used in the next stage. The reactants of light dependent reactions are light energy from sun, and water (H2O) while the product is Oxygen (O2) gas.

In the light independent reactions, the ATP and NADPH are used to synthesize GLUCOSE as a product from Carbon dioxide (CO2) reactant.

2. The NADPH is is an electron carrier produced from the reduction of NADP+, which transfers or donates electrons to other molecules in the electron transport chain of photosynthesis. This is crucial in building of the proton gradient for ATP production.

3. The light reaction or light dependent reaction takes place in the THYLAKOID MEMBRANE of the Chloroplast.

7 0
3 years ago
Most fungi are able to reproduce both asexually and sexually. Describe when asexual reproduction occurs and when sexual reproduc
Alexeev081 [22]

Answer:

Fungi can reproduce both sexually and asexually. They are spore producing organisms like mushrooms, molds, and yeast.

Asexual reproduction: Fungi can reproduce asexually by the genetically similar spores which is reproductive cell and by the mycelia pieces. It is a most common method and spreading more fungus than sexual reproduction.

In this reproduction sporogenesis starts with the reproductive hyphae known as sporangiophores. Sporangia structure occurs at the end of the sporangiophore. In the sporangia, spores is present.

Sexual reproduction: Via meiosis sexual reproduction occurs in fungus. In this process fungal gamete's fusion occur for the formation of zygospores.

In fungi lifecycle spores are dispersed by the help of wind, water and other organisms.

3 0
3 years ago
Read 2 more answers
Which of the following happened during the Precambrian Era?
malfutka [58]
<h2>Answer:</h2>

<u>D. All of the above </u>

<h2>Explanation:</h2>

Precambrian time incorporates Earth's history from birth up to 590 million years back. That is, the Precambrian traverses 90% of Earth's presence. Fossilized microscopic organisms and blue-green growth demonstrate that crude life existed in any event 3,500 million years prior, and potentially prior.

However, it took another 2,100 million years for eukaryotic cells (plant and creature cells) to show up. These single-celled animals (protozoa) commanded the seas. Multi-cell creatures (spineless creatures) didn't advance until exceptionally late in Precambrian time, around 700 million years prior or 2,800 million years after life initially started on Earth.  

8 0
3 years ago
The branch of science which deals with the study of cells
laiz [17]

Answer:

biology studies the cells

3 0
3 years ago
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