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3 years ago

Compare and contrast simple and facilitated diffusion!!

Biology

2 answers:

ANEK [815]3 years ago

4 0

Answer:

In simple diffusion, the molecules can pass only in the direction of concentration gradient. In facilitated diffusion, the molecules can pass both in direction and opposite of the concentration gradient. Simple diffusion permits the passage of only small and nonpolar molecules across the plasma membrane.

Explanation:

bezimeni [28]3 years ago

3 0

Answer:

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Cells are the basic of

I am Lyosha [343]

Answer:

cells are the basic building blocks of living things

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3 years ago

Organisms that are characterized by being unicellular, photosynthetic, and having double shells made of silica are known as?

AnnyKZ [126]

Organisms that are characterized by being unicellular, photosynthetic, and having double shells made of silica are known as B. diatoms.

<h3>Photosynthetic</h3>

By converting light energy into chemical energy through a process called photosynthesis, plants and other living things can subsequently release that chemical energy to power their activities. The name "photosynthesis" comes from the Greek words "phs" for "light" and "synthesis" for "putting together." Some of this chemical energy is stored in carbohydrate molecules like sugar and starch, which are created from carbon dioxide and water. These creatures are referred to as photoautotrophs and include the majority of plants, algae, and cyanobacteria. Most of the energy required for life on Earth is produced and maintained through photosynthesis, which also produces and maintains the oxygen concentration of the atmosphere.

Organisms that are characterized by being unicellular, photosynthetic, and having double shells made of silica are known as

A. dinoflagellates.

B. diatoms.

C. kelps.

D. euglenoids.

E. foraminifera.

Learn more about photosynthetic here:

brainly.com/question/26561399

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1 year ago

In the Z-scheme ____ is the initial electron donor and ____ is the final electron acceptor. A. Water; NADP B. NADPH; oxygen C. W

Aleksandr [31]

<h2>Water;NADP is the correct option</h2>

Explanation:

Z scheme also known as non cyclic electron flow which starts with the absorption of light by photosystem II

Z scheme involves both photosystem(PS) I and photosystem(PS) II
Water becomes oxidized and oxygen gas is released/evolved as a result NADP+ gets reduced and produces NADPH
Oxidation of water and release of protons in lumen is done by PSII whereas reduction of NADP+ to NADPH is done by PSI
Oxidation of water molecule establish gradient of proton and this gradient drives synthesis of ATP

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3 years ago

What is the function of messenger RNA (mRNA) in eukaryotic cells? Messenger RNA transcribes the genetic code from the antisense

Novay_Z [31]

All the above are correct statement of mRNA !!

It is transcribed from template stand ; moves out of nucleus ; take the gene info to ribosomes which is the site of protein synthesis !!

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4 years ago

Why are germ cells haploid?

suter [353]

Germ cells are also diploid, but they are found only in the gonads. Gonads are the ovaries in females and testes in males. <span>Gametes are </span>haploid cells<span>, which means that they have only one set of chromosomes. </span>

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3 years ago