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3 years ago

What is simple diffusion

2 answers:

8 0

The term simple diffusion refers to a process whereby a substance passes through a membrane without the aid of an intermediary such as a integral membrane protein.

Kazeer [188]3 years ago

5 0

When an ion or a molecule passes through a membrane without something facilitating, or encouraging that passage, such as a protein does. What drives it is the force of the diffusion itself instead.

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The main dietary factor associated with elevated blood cholesterol is?

Korolek [52]

The main dietary factor associated with elevated blood cholesterol is saturated fat.

<h3>What about saturated fat?</h3>

Because they increase the amount of LDL cholesterol in our blood, saturated fats, sometimes known as "bad fats," increase the risk of cardiovascular disorders (including heart disease and stroke).
Cholesterol that is circulated in the blood.
The majority of this cholesterol is produced by the body, however some is also absorbed from the meals you eat.
Even if they include fat, foods derived from plants never contain cholesterol.
Only foods from animals do. Low density lipoproteins are able to transport cholesterol.
Dietary fat, particularly saturated and trans fats, may increase LDL and total cholesterol levels in the blood.
Blood cholesterol levels may be lowered by substituting polyunsaturated and monounsaturated fats, particularly olive and canola oil, for some saturated fats.
When we consume too much saturated fat, the receptors stop functioning as effectively, and blood cholesterol levels rise.

Learn more about saturated fat here:

brainly.com/question/21816695

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5 0

1 year ago

Which substance fills the space between organelles?

Nata [24]

Answer:

D. Cytosol

Explanation:

A. Ribosomes are involved in protein synthesis

B.Cell Membrane is the part of the cell that encapsulates the cell

C. Cell Walls are what encapsulates plant cells

6 0

2 years ago

Explain how fertilization occurs

alex41 [277]

<span>I'm assuming this in plants.

Brief-ish answer:

"Fertilization in plants occurs when pollen grains are transported from anthers to stigma. When ripe pollen from an anther catches on the stigma of the same kind of flower, each pollen grain sends out a small thread-like tube."

Here's a fuller answer:

"</span>Fertilization occurs after pollination, when pollen grains land on the stigma of a flower of the same species. During this time, a series of events take place leading to the formation of seeds. A pollen grain on the stigma develops a tiny tube that runs down the style of the ovary. The pollen tube contains a male gamete which meets the female gamete in the ovule. Fertilization occurs when the two gametes combine and their chromosomes join. The resulting product is a normal complement of chromosomes, with some from either parent flower. The fertilized ovule forms a seed, which consists of a food reservoir and an embryo that later develops into a new plant. In gymnosperms (conifers) male gametes are enclosed in pollen grains and are transmitted by wind or insects to the female reproductive organs. Fertilization in angiosperms (flowering plants) occurs when insects or other animals transport the pollen to the female reproductive organ (pistil).<span>
</span><span>Fertilization is the fusion of gametes to launch the development of a new individual organism. In animals, the process entails the combination of ovum with a sperm, leading to the development of an embryo. Fertilization in plants occurs when haploid gametes meet to create a diploid zygote, which eventually forms an embryo.</span><span>"

source: </span>https://www.reference.com/science/plant-fertilization-occur-ccf48c80e72fc410

5 0

2 years ago

What type of compounds always contain carbon and hydrogen

Aleksandr [31]

Answer:

Asuming basic organic chemistry: Hydrocarbons

Explanation:

A hydrocarbon is an organic compound consisting entirely of hydrogen and carbon.

4 0

2 years ago

Biology Photosynthesis questions

Mazyrski [523]

I cannot do the part A task...... I can do the chart (: annddd the questions below..

Glucose: Glucose is a sugar made from sunlight, with the molecular formula C6H12O6.

chloryphll: The energy that is absorbed of the photon is transferred to an electron in a process called charge separation.

ATP: is a product of the first stage of photosynthesis, and it provides energy for the second stage. energy transfer; that is, ATP is able to store and transport chemical energy within cells.

Carbon dioxide: is involved in the production of refrigeration systems, welding systems, water treatment processes

chloroplast: contains the molecule chlorophyll, which absorbs sunlight for photosynthesis.

stomoata: control the flow of gases in and out of leaves.

Thylakoid: A thylakoid is a membrane-bound compartment inside chloroplasts and cyanobacteria. They are the site of the light-dependent reactions of photosynthesis. surrounded by a lunon.

stroma; involved in the Calvin Cycle – carbon fixation, reduction and regeneration. the stroma the supportive tissue of an epithelial organ, tumor, gonad, etc.

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Q2: oxygenic photosynthesis and anoxygenic photosynthesis.

Q3: The general principles of anoxygenic and oxygenic photosynthesis are very similar, but oxygenic photosynthesis is the most common and is seen in plants, algae and cyanobacteria.

Q4: water, light and carbon dioxide, while the products are oxygen and sugars.

Q5: carbon dioxide + electron donor + light energy ==> carbohydrate + oxidized electron donor + water

CO2 + 2H2A + photons ==> [CH2O] + 2A + H2O

7 0

3 years ago