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alisha [4.7K]
3 years ago
5

Mengapakah tabung didih dibalut dengan kertas hitam?​

Biology
1 answer:
leva [86]3 years ago
4 0

Answer:

supaya tak meletup

Explanation:

sebab hitam dapat menghalang cahaya matahari daripada kena ke tabung didih agar tidak terlebih panas dan menyebabkan letupan

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Three organelles found in cells?
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Answer:

1.Plasma membrane

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2.Endoplasmic reticulum

The endoplasmic reticulum (ER) is a large network of membranes responsible for the production of proteins, metabolism and transportation of lipids, and detoxification of poisons. There are two types of endoplasmic reticulum with separate functions: smooth endoplasmic reticulum and rough endoplasmic reticulum. The presence or absence of ribosomes in the ER’s plasma membrane determines whether it is classified as smooth or rough ER.

3.Golgi apparatus

The Golgi apparatus appears as a series of flattened, membranous sacs, or cisternae, that resemble a stack of pancakes just off the rough endoplasmic reticulum. It receives vesicles containing proteins recently produced by the rER. The Golgi apparatus can be compared to a warehouse or post office for newly formed proteins. Here the proteins are further modified, packaged, and sent off to their final destinations in the cell or body.

6 0
2 years ago
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The variables for this experiment include the physical properties of the solutions and the pH of each solution. Use the drop-dow
jarptica [38.1K]

Answer:

The first one is the type of energy used

The second one Is the thermal energy transferred

Explanation:

<em>I</em><em> </em><em>hope</em><em> </em><em>this</em><em> </em><em>helps</em><em> </em>

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3 years ago
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ASAP A group of specialized cells working together to perform a function is a(n) ____________.
guajiro [1.7K]

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THE answer is gonna be A.Tissue

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3 years ago
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Which type of substance would best dissolve in a solvent that was made of nonpolar molecules.
Studentka2010 [4]
Lthough much of the explanation for why certain substances mix and form solutions and why others do not is beyond the scope of this class, we can get a glimpse at why solutions form by taking a look at the process by which ethanol, C2H5OH, dissolves in water. Ethanol is actually miscible in water, which means that the two liquids can be mixed in any proportion without any limit to their solubility. Much of what we now know about the tendency of particles to become more dispersed can be used to understand this kind of change as well.
Picture a layer of ethanol being carefully added to the top of some water (Figure below). Because the particles of a liquid are moving constantly, some of the ethanol particles at the boundary between the two liquids will immediately move into the water, and some of the water molecules will move into the ethanol. In this process, water-water and ethanol-ethanol attractions are broken and ethanol-water attractions are formed. Because both the ethanol and the water are molecular substances with O−H bonds, the attractions broken between water molecules and the attractions broken between ethanol molecules are hydrogen bonds. The attractions that form between the ethanol and water molecules are also hydrogen bonds (Figure below). There you go
3 0
3 years ago
Re-writing the natural history of pain and related symptoms in the joint hypermobility syndrome/ehlers-danlos syndrome, hypermob
grandymaker [24]

Joint hypermobility syndrome (JHS) and Ehlers-Danlos syndrome, hypermobility type (EDS-HT) are the tissue disorders which can be characterized by chronic pain, joint instability complications, and minor skin changes. During these, Fatigue and headache are the very common symptoms; though they can be diagnosed using specific criteria.

JHS/EDS-HT is a rare common condition that could not be diagnosed by most clinicians and pain specialists, resulting in interventions like symptomatic and non-satisfactory treatments, because there is a lack of reasonable pathophysiologic rationale.

Pain, fatigue, and headache in JHS/EDS are usually treated with the help of certain symptoms or on the basis of doctors’ experience.

<span>Therefore, in order to the cure of such symptoms, doctors suggest pathogenic mechanisms. The major aim of the re-writing of the natural history of JHS/EDS-HT is to raise awareness among clinical geneticists and specialists treating chronic pain conditions about pain and other complications of JHS/EDS-HT.</span>

3 0
3 years ago
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