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erastova [34]
3 years ago
5

Unlike animal cells plant cells have cell walls that make them rigid which organelle other than cell wall also plays vital role

providing rigidity to plant cells
Biology
2 answers:
Luden [163]3 years ago
5 0

The plant cell's central vacuole provides rigidity by creating turgor pressure.

qwelly [4]3 years ago
5 0

Answer:

Vacuole

Explanation:

Apart from cell wall, vacuole plays an important role in maintaining rigidity of plant cells. It is a membrane bound fluid filled sac. Vacuole can expand in size greatly.

When the outside environment is hypotonic, plant cell takes in excess of water. This water is taken up by vacuole and it can stretch to fill out around 90% of cell without losing its integrity. The cell is said to be turgid and all other organelles press against the cell wall without facing any damage. The development of this hydrostatic pressure helps to maintain the rigidity of the cell along with cell wall.

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Compared to the inertia of a 1-kilogram mass, the
avanturin [10]

Answer:

D. 4 times as great

Explanation:

The inertia of an object is the resistance offered by the object to change in its motion or position.

Then concept of inertia is obtained from Newton's first law of motion which states that an object which is not subjected to any net external force will remain its position of rest or constant velocity of motion until some net external force acts on it. The object at rest will then start to move whereas the object moving at constant velocity will experience a change in its speed or direction of motion.

This reluctance to change position is greater, the more massive an object is as well as the higher the speed of motion of the object. Thus, inertia is directly proportional to the mass of the object as well to the velocity of an object in motion.

From Newton's first law, inertia can be calculated as the force to be overcome to mobile an object, i.e. Inertia = F = ma

Where m is mass of object, a = acceleration of the object.

Objects on the earth's surface experience a constant acceleration, g.

Thus for a 1 kg mass, Inertia = 1 × g

For a 4 kg mass, inertia = 4 × g

The inertia of a 4 kg mass is four times as great as a 1 kg mass.

8 0
3 years ago
If the chromosomes that determine gender had been a part of this activity, which allele (X or Y) would have determined the gende
katrin2010 [14]

Answer:

Y chromosome

Explanation:

The presence of the Y chromosome indicates a male, whereas the absence of it indicates a female.

6 0
3 years ago
Which of the following statements about the smooth endoplasmic reticulum is/are correct?
olya-2409 [2.1K]

The correct answers are:

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This is because liver cells contain enzymes that metabolize various lipid-soluble compounds.

• The testes and ovaries are tissue types whose cells are abundant in SER.

This is because testes and ovaries produce steroid hormones (cholesterol is the precursor for their synthesis).

• Cholesterol is made in the SER.  

ER is the organelle at which all membrane lipids are synthesized.

• Phospholipids are synthesized from cytosolic water soluble precursor molecules.  

Phospholipids are the main lipids that are the main structural components of the cell membrane. They are synthesized on the cytosolic side of the ER membrane, from water-soluble cytosolic precursors.

5 0
3 years ago
Complete the following: layers: Earth as _____: Sun
Charra [1.4K]
C.solid surface
I think it’s wrong
But mark me as brainliest
7 0
3 years ago
I need help and please explain
Ierofanga [76]

Breaking chemical bonds is typically an endothermic process, which means energy must be added (it must pull in energy)

Breaking of chemical bonds is always endothermic meaning it wants energy, so it takes energy from its surroundings and sucks it in. Think of 'endo' as inside. The chemical bonds want energy inside of it so it can break.

Forming of chemical bonds is exothermic, meaning it releases energy into its surroundings. Think of 'exo' as outside, or exterior, it releases its energy outside of itself.

I hope that makes some kind of sense :)

7 0
3 years ago
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