Which statement about plant and animal cells is true? A. Plant cells have a nucleus and a cell wall; animal cells do not have either of these structures. B. Plant cells have a cell wall and chloroplasts; animal cells do not have either of these structures. C. Plant cells have a cell wall and a cell membrane; animal cells have a cell wall but not a cell membrane. D. Plant cells have chloroplasts and mitochondria; animal cells have chloroplasts but do not have mitochondria.

Answers

Answer 1

Answer:

B. Plant cells have a cell wall and chloroplasts; animal cells do not have either of these structures.

Explanation:

A major difference between a plant cell and an animal cell is presence of chloroplasts in plant cells. Another key difference between plant and animal cells is the presence of a cell wall in plant cells. Both structures are absent in an animal cells.

The cell wall surrounds the plasma membrane of plant cells. This helps to provide the required tensile strength and protection against mechanical and osmotic stress.

Cell walls also help plants to maintain shape and rigidity.

Answer 2

The plant cell has a cell wall and chloroplast, while the animal cell lacks both of them. Thus, option B is correct.

The cell has been the smallest unit of life that has been performing varying functions with the help of different organelles.

The plant cell has been exposed to harsh environmental conditions, thus has been consisting of the cell wall along with the cell membrane. However, animal cell lacks a cell wall.

The food has been processed in the plant cells with the help of photosynthesis that required chlorophyll. The chlorophyll has been consisted in the chloroplast. Thus plants cell have consisted of chloroplast, however, animal cells lack chlorophyll as well as chloroplasts.

Thus, the plant cell has a cell wall and chloroplast, while the animal cell lacks both of them. Thus, option B is correct.

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Related Questions

What part of the atom tells you what element it is?
Number of electrons
Number of Photons (the light particle)
Number of Neutrons
Number of Protons

Answers

Answer: I believe it is the number of protons.

The law of unbalanced forces is also known as? :

Answers

Answer:

Newton's 2nd Law

Explanation:

Newton's Second Law of Motion is concerned with the effect that unbalanced forces have on motion.

Law of unbalanced forces is also know as Newton's 2nd Law

How many grams are there in 2.34x10^23 atoms of Cu?

Answers

Answer 1


Explanation

Because it’s 1

The mass of the 2.34 × 10²³ atoms of copper is equal to 24.68 grams.

What is Avogadro's number?

The Avogadro constant can be defined as the proportionality factor that the number of constituent particles in a sample with the amount of substance.

Avogadro’s number can be described as a dimensionless number that represents the number of entities in one mole of any substance. These elementary entities can be molecules, atoms, ions, electrons, or protons, etc.

Avogadro’s constant has a value approximately equal to 6.022 × 10²³ mol⁻¹.

Given, the number of atoms of copper = 2.34 × 10²³

The atomic mass of Cu Copper = 63.5 g/mol

So 6.022 × 10²³ atoms of Cu have mass = 63.5 g

Then 2.34 × 10²³  Cu atoms will have mass = [tex]\frac{63.5 \times 2.34 \times 10^{23}}{6.02 \times 10^{23}}[/tex] = 24.68 g

Therefore, 24.68 grams of Cu are there in 2.34 × 10²³ atoms of Cu.

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1. The heat absorbed when ice melts can
be measured in a unit called a
(1) torr
(2) degree
(3) mole
(4) joule

Answers

4 a joule is the answer

Answer:

joule

Explanation:

A sample of gas occupies a volume of 598.9 mL and has a pressure of 675.6 torr. What will the pressure of the sample of gas be if the volume is decreased to 235 mL? Be sure to include units with your answer.

Answers

Answer:

1721.77 torr

Explanation:

The new pressure can be found by using the formula for Boyle's law which is

[tex]P_1V_1 = P_2V_2[/tex]

Since we are finding the new pressure

[tex]P_2 = \frac{P_1V_1}{V_2} \\[/tex]

From the question we have

[tex]P_2 = \frac{598.9 \times 675.6}{235} = \frac{404616.84}{235} \\ = 1721.773787...[/tex]

We have the final answer as

1721.77 torr

Hope this helps you

What is it called when a rock is broken down into smaller pieces by ice, glacier or water ? Chemical weathering, physical weathering, deposition, pollution

Answers

Answer:

deposition I hope this helps!!

Explanation:

Answer:physical weathering

Explanation:

What patterns do you observe in the data?

Answers

Explanation:

What type of graph is most appropriate to present the data in Table 4? Create a graph of the data in Excel or another graphing software and submit it to your instructor.

Develop a detailed hypothesis for your experiment.What would your experimental approach be to test this hypothesis? Be detailed in your description of the experiment.

6.What are the independent, dependent, and controlled variables in your experiment?

What type of graph would be appropriate for this data set? Why?

A gas is allowed to expand from a volume of 400 ml to 2000 ml at a constant temperature. If the the initial pressure is 3 atm, calculate the final pressure exerted by the gas

Answers

Answer:

[tex] P_{2}) = 0.6 \; atm [/tex]

Explanation:

Given the following data;

Initial volume = 400 mL

Final volume = 2000 mL

Initial pressure = 3 atm

To find the final pressure P2, we would use Boyles' law.

Boyles states that when the temperature of an ideal gas is kept constant, the pressure of the gas is inversely proportional to the volume occupied by the gas.

Mathematically, Boyles law is given by;

[tex] PV = K[/tex]

[tex] P_{1}V_{1} = P_{2}V_{2} [/tex]

Substituting into the equation, we have;

[tex] 3 * 400 = P_{2}* 2000[/tex]

[tex] 1200 = 2000P_{2}[/tex]

[tex] P_{2}) = \frac {1200}{2000}[/tex]

[tex] P_{2}) = 0.6 \; atm [/tex]

23) The function of an organelle is related to its
A. system.
B. structure.
C. blood cell.
D. job.
Help plzzz

Answers

Answer:

Well, it could be B or D but I would say B.

Explanation:

The structure of an organelle is usually fit to its function so it is most likely B.

Hope this helps!

The answer is (B) Structure

When hydrogen reacts with active metals, it
shares electrons
gains one electron
loses one electron
O loses two electrons

Answers

Atomic hydrogen is very reactive. It combines with most elements to form hydrides (e.g., sodium hydride, NaH), and it reduces metallic oxides, a reaction that produces the metal in its elemental state. ... Almost all metals and nonmetals react with hydrogen at high temperatures.

Students are copying their homework assignment from the whiteboard in their dimly lit classroom Some students are wearing eyeglasses, some are not wearing anything over their eyes, and
one student is wearing dark sunglasses. Which material allows the least light to pass through it so that the smallest amount of light reaches the student's eyes?
Eyeglasses
Sunglasses
Air

Answers

Answer:

sunglasses

Explanation:

If an element has 11 protons and 11 neutrons in its nucleus it must be ?

Answers

Answer:

the answer is 11

Explanation:

Ok, let us understand what is an atomic number, an atomic number is simply the proton number, the atomic number is always seen at the bottom left corner in a element of a periodic table, it is the number of proton in a atom of a certain element.

Elements that readily lose electrons tend to have
A) high ionization energy and high electronegativity
B) high ionization energy and low electronegativity
C) low ionization energy and low electronegativity
D) low ionization energy and high electronegativity

Answers

Answer:

C) low ionization energy and low electronegativity

Explanation:

What structures are found in
plant cells that are not found in animal cells?

Answers

Answer:

Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, which are not found within animal cells. The cell wall is a rigid covering that protects the cell, provides structural support, and gives shape to the cell.

Explanation:

MOST BRAINLIEST

(02.03 LC)
What term is used to describe the lowest energy level of a particle? (5 points)

Answers

Explanation:

Answer and Explanation: Photon is the basic unit of light. The excited state refers to the state when any specified electron gained some energy from surrounding. In the ground state, the electron carries no energy and this refers to its lowest energy level.

Where do elements in the human body tend to be located on the PERIODIC TABLE? (NOT PERCENTAGES PLEASE)​

Answers

Answer:

Oxygen, Carbon, Hydrogern, Nitrogen, Sulfur, and Chlorine are all non-metals

Calcium, Potassium, Sodium, and Magnesium are all metals

Explanation:

The human body is made of elements at the most simple level. Oxygen in group 16, carbon in group 14, hydrogen located in group 1, and nitrogen and phosphorus in group 15.

What are the elements of the body?

The body is composed of elements and atoms at the most preliminary level of organization. The elements are placed in a periodic table based on the atomic number that is characteristic of their properties. The elements are arranged into 18 families and groups.

oxygen is located in group 16, carbon in group 14hydrogen in group 1nitrogen in group 15calcium in group 2potassium in group 1sulfur in group 16sodium in group 1chlorine in group 17magnesium in group 2

Therefore, elements are classified as alkali metals, alkaline metals, nonmetals, noble gases, halogens, and transition metals.

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What do you think caused this land formation ?

Answers

Erosion has caused it

The chemical formula for the ionic compound aluminum sulfite is Al2(SO3)3. Explain why there are 2 cations for every 3 anions in this compound.

Answers

my mom !!!Explanation:

Musscle man

why does no one love me? when will i feel appreciated?

Answers

Answer:

I appreciate you- owo... and people do love you. uwu. even tho I am a stranger I love you :D. ❤

You're the best person anyone could ever ask for. Trust me you're enough <3

The illustration below shows the human skeletal system. Use the illustration to any questions at follow
Skull
Facial Cranium
bones
Clavice
Scapula
Humerus
Vertebral
column
Sternum
Una
Ribs
Radius
Sacrum
Carpals
Metacarpals
Phalanges
Tarsels
-Femur
-Patella
-Tibia
Fibia
Metatarsels
Phalanges
Using the illustration, which function do the bones of the skull mainly perfom?
A. They allow movement
B. They produce proteins
C. They protect tissues and organs
D. They connect muscles to tissues

Answers

im pretty sure its C, if im right please give me brainlist

The function where the bones of the skull mainly perfom should be that they protected the tissue and organs.

What is tissue and organs?

Here the tissue and organs should be considered as the basic structural units with respect to the bodies.

Here the tissues should be comprise of the cell collections that have the same kind of function while on the other hand, the organ should be the tissue collections.

Therefore, it protected the tissue and organs.

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The chemical formula for zinc sulfate

Answers

Answer:

ZnSO4

Explanation:

There

if you drop soap on the floor is the soap dirty or is the floor clean?

Answers

Answer:

hahahaha the soappp is dirty and the floor gets clean

You’ve been waiting for the bus and your hands become cold. When you get onto the bus and sit down, you put your hands under your legs to warm up. After a while your hands feel warmer but your legs feel colder. Explain this with regards to what you know about thermal energy transfer.

Answers

Explanation:

The First Law of Thermodynamics states that energy cannot be created or destroyed in an isolated system. In other words, energy can be converted from one form into another, but it cannot be created nor destroyed.

Conduction is the transfer of energy from one molecule to another by direct contact. This transfer occurs when molecules hit against each other, which can take place in solids, liquids, and gases.

When you put your cold hands under your legs to warm your hands up, the heat energy from your legs is being transferred to your hands through conduction. However, since energy cannot be created, there is no extra heat energy that can instantaneously replace the heat created by your legs.

Every metabolic process involves energy transfer. Since as the total energy is conserved and thus no loss or gain of energy will be there in a system and to maintain this equilibrium energy transfer from lower energy spot to higher energy spot.

What is thermal energy?

Thermal energy is the energy in the form of heat and which can transfer from one part to the other as any other energy form.

As energy is conserved in a system there will be no net gain or loss of energy overall. Thus energy lost from one part travels to the other parts. Any energy forms transfer from a low intense area to high intense area.

When our hand cools down we may warm them up by rubbing on legs. Where heat energy is transferred from our legs to hands to warm it up. Thus here temperature is given to a colder part from a hot part.

This is an example of heat transfer hence, our legs cools down because some of its temperature is lost to hands still the overall temperature of the body remains balanced.

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two or more atoms joined together form a _______

Answers

Answer:

When two atoms join together they make compounds

Explanation:

A molecule is formed when two or more atoms join together chemically. If atoms combine that are of two or more different elements, we call that a compound. All compounds are molecules, but not all molecules are compounds.

Which of the following are soluble in water? Select all that apply.
K2SO4
CaCl2
LiOH

Answers

I think it is

K2SO4?

Answer:

1 And 2 are soluble in water

_Se2 → _Se3
A.2,2
B.1,2
C.3,2
D.2,3

Answers

Answer:

C. 3,2

Explanation:

these coefficients balance out the equation.

the density of seawater is ____ fresh water?

Answers

Answer:

Since salt ions are heavier than water molecules, seawater is denser than freshwater. The density of seawater ranges from 1020 to 1030 kg/m 3 while the density of freshwater is about 1000 kg/m 3. Variations in salinity also cause the freezing point of seawater to be somewhat lower than that of freshwater.

Explanation:

The movement of electrons is what type of energy?

Answers

Answer:

Electrical energy

Explanation: Kinetic energy is motion, it is the motion of waves, electrons, atoms, molecules, substances, and objects. Electrical energy is the movement of electrons.

Answer: Electrical Energy

Explanation: The movement of electrons is Electrical Energy, because Educere says so :)

A 50 gram sample of radioisotope undergoes 2 half lives. How many grams would remain at the end?

Answers

Answer:

you would need to multiply 50 times 2 wich is 100 so i beleive its 100

Explanation:

All of the alkaline earth metals are similar in that – they are all artificially made elements they all have similar atomic weights. they all have the same ionic charge. they all show variable valences.

Answers

Answer:

they all have the same ionic charge.

Explanation:

Alkaline earth metals are group 2 metals on the periodic table. They are divalent elements because they have two valence electrons and ionize by donating these two valence electrons. Elements in this group have the same numbers of electrons in their outermost shell of their atoms. i.e. they all have the same number of valence electrons and ionic charge.

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