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Colt1911 [192]
3 years ago
7

What does Physical property mean

Biology
1 answer:
zhenek [66]3 years ago
5 0
Any property that is measurable, whose value describes a state of a physical system.
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Briefly explain why exponential growth within a population cannot last forever.
Alexxandr [17]

Answer:

It will eventually become unsustainable because of factors like food, water, space, etc.

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40 points please answer the two questions in the picture!!
nikdorinn [45]

Answer:

it's going to be called nucleotides

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A scientist is using a species of green algae to study the electron transport chain in photosynthesis. He uses a laser to inacti
jeka94

Answer:

D) In case 1, both PS I and PS II completely lose function; in case 2, a proton gradient is still produced.

Explanation:

The light dependent reaction of photosynthesis, which produces the ATP and NADPH needed in the light independent stage of the process, includes complexes of proteins and pigments called PHOTOSYSTEMS. These photosystems (I and II) are key to the functionality of the light dependent reactions in the thylakoid.

The major pigment present in both photosystems is CHLOROPHYLL A, which absorbs light energy and transfers electrons to the reaction center. Chlorophyll B is only an accessory pigment meaning it can be done without. Hence, if all of the chlorophyll A is inactivated in the algae but leaves chlorophyll B intact as in case 1, both PS I and PS II will lose their function because Chlorophyll A is the major pigment that absorbs light energy in both photosystems.

In case 2, if PS I is inhibited and PS II is unaffected, a PROTON GRADIENT WILL STILL BE PRODUCED because the splitting of water into protons (H+) and electrons (e-) occurs in PSII. Hence, H+ ions can still be pumped into the inner membrane of the thylakoid in order to build a proton gradient even without the occurrence of PS I.

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Read the excerpt from Narrative of the Life of Frederick Douglass. What is Frederick Douglass' point of view about Baltimore bas
julsineya [31]

I think it would be A.

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The various parts of the endomembrane system serve different functions in the cell. In this activity, you will identify the role
liberstina [14]

Answer:

Smooth ER:

Lipid synthesis, Calcium ion storage, Poison detoxification

Rough ER:

Protein synthesis

Golgi apparatus:

Protein modification and storage, Cisternal maturation

Lysosomes:

Autophagy, Macromolecule digestion

Explanation:

The endomembrane system is important for the production, processing, and transport of proteins and lipids in the cell.

The smooth ER:

It aids basically in lipid production and processing.

The smooth endoplasmic reticulum, or smooth ER, is an organelle that is observed in animal cells and plant cells. Itd basic function is the production of cellular products such as hormones and lipids.

The rough ER :

It is the spot of secretory protein production.

Rough endoplasmic reticulum is observed in eukaryotic cells. Its basic aid is to synthesize proteins. It consists of cisternae, tubules and vesicles. The cisternae comprise of flattened membrane disks, that play a major role in protein modification.

Golgi apparatus:

It helps in further processing of the proteins produces for the rough ER and then in sending them off in vesicles to the plasma membrane.

It's often termed the cell's post office. It modifies, sorts and arrange proteins for secretion. It aids lipid transportation around the cell, and the production of lysosomes.

Lysosomes:

Its enzymes are synthesized and formed in the rough ER and Golgi apparatus. It aid hydrolysis of macromolecules e.g. phagocytosis and autophagy.

It is involved in digestion and waste removal by feeding on worn-out organelles, food molecules, and engulfed viruses or bacteria.

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