Please help !! 100pts
1.
Which of the following best summarizes why the technological invention of microscopes was important to biology?
It created public interest and support for research.
It created a means of funding for cell research.
It allowed for development of the cell theory.
It proved that cells could form spontaneously.
2.
Which of the following best compares the structures found in plant cells and animal cells?
Plant cells have rigid cell walls and do not contain mitochondria or ribosomes while animal cells do.
Plant cells contain rough endoplasmic reticulum and a Golgi apparatus while animal cells contain smooth endoplasmic reticulum surrounded by lysosomes.
Animal cells do not contain chloroplasts, cell walls, or a large central vacuole while plant cells do.
Animal cells contain cell walls and a large central vacuole while plant cells contain cell membranes and many small vacuoles.
3.
Which equation describes what happens in photosynthesis?
CO2 + O2 + H20 + energy → CH2O5
6CO2 + 6H2O + energy → C6H12O6 + 6O2
C6H12O6 + 6O2 → 6CO2 + 6H2O + energy
C6H12O6 + H20 → CO2 + energy
4.
Early elements of the cell theory followed soon after the development of Hooke’s light microscope. What does this relationship suggest about the evolution of the cell theory since Hooke?
Progress on the cell theory was delayed by a lack of technological progress.
Scientists needed to focus less on cells and more on microscope development.
Isolated scientists contributed pieces of the cell theory to form the whole.
Improvements in technology are closely related to changes in the cell theory.
5.
Oxygen is a product of photosynthesis. The primary role of this oxygen in cellular respiration is to
combine with lactate, forming pyruvate.
combine with carbon, forming CO2.
yield energy in the form of ATP as it is passed down the respiratory chain.
act as an acceptor for electrons and hydrogen, forming water.
6.
Some proteins catalyze biochemical reactions. If a genetic defect prevented a protein catalyst from being produced, which of the following do you predict would happen in the cell?
The reverse reaction of the one the protein catalyzes would begin to proceed.
The reaction the protein catalyzes would only occur in some places in the cell.
The cell would find a different type of protein to catalyze the reaction.
The reaction the protein catalyzes would proceed very slowly or not at all.
7.
Which statement best compares a eukaryote and a prokaryote?
Eukaryotes use active transport to move substances across the cell membrane, while prokaryotes use facilitated diffusion.
Eukaryotes have membrane-bound organelles, while prokaryotes have few specialized structures.
Eukaryotes use flagella to move themselves through substances, while prokaryotes are not able to move.
Eukaryotes have a cell wall, while prokaryotes have a cell membrane.
8.
What are the reactants for cellular respiration?
H2O and O2
Glucose and O2
Glucose and CO2
H2O and CO2
9.
Which of the following best compares the membranes found in different types of cells?
Animal cells have cell membranes and cell walls, but plant cells do not have cell membranes.
Prokaryotes and eukaryotes both have cell membranes, but eukaryotes also have membrane-¬‐bound organelles.
Animal cells have membrane-¬‐bound organelles, while plant cells carry out the functions necessary for life in the cytoplasm.
Prokaryotes have only cell membranes, while eukaryotes have both cell walls and cell membranes.
10.
Which of the following characteristics defines a cell as a eukaryote?
Having ribosomes
Being able to move
Having a nucleus
Being able to reproduce
11.
Water has a much higher specific heat than most other covalent compounds. What do you predict might happen if water had a low specific heat instead?
Harmful organisms living in water would reproduce at a rapid rate.
Organisms that are sensitive to changes in temperature would die.
Flooding would occur and animals would be forced to migrate.
Plants would not have enough water to effectively carry out photosynthesis.
12.
Which of the following best describes a result of the polar nature of water molecules?
Ionic compounds dissolve easily in water.
The volume of water decreases by nearly half when it is frozen.
Water molecules repel each other.
Water molecules repel most other substances.

Answers

Answer 1

Explanation:

1. It allowed for development of the cell theory.

2. Animal cells do not contain chloroplasts, cell walls, or a large central vacuole while plant cells do.

3. 6CO2 + 6H2O + energy → C6H12O6 + 6O2

4. Improvements in technology are closely related to changes in the cell theory.

5. Yield energy in the form of ATP as it is passed down the respiratory chain.

6. The reaction the protein catalyzes would only occur in some places in the cell.

7. Eukaryotes have a cell wall, while prokaryotes have a cell membrane.

8. Glucose and O2

9. Animal cells have cell membranes and cell walls, but plant cells do not have cell membranes.

10.Having a nucleus

11. Plants would not have enough water to effectively carry out photosynthesis.

12. Ionic compounds dissolve easily in water.

I hope this helps!


Related Questions

A father with type A+ blood and a mother with type 0+ blood have four children. Of their four children, two have type A+ blood and two have
type O+ blood. What is the genotype of the father?

Answers

Answer:

The father IA i

Explanation:

They have a child O (ii)

True or False?A group of organs that work together to perform big jobs for your body is an organ system.

Answers

Answer:

True :)

Explanation:

an organ system is consisted of a group of organs that work together to carry out a complex function.

Which statement best explains why these cells have structural differences?

The cells have different functions.

The cells evolved in different organisms.

One of the cells is more primitive than the other cell.

One of the cells develops into the other type of cell.

Answers

Answer:

a

Explanation:

The cells have different functions

the red blood cells protect you’re healthy cells from bacteria and/or viruses
and the nerve cell sends signals to our muscles and/or brain

help please!! will mark brainliest ​

Answers

Answer is the first option Place a metal paper clip on a table and slowly bring each electromagnet closer to the paper clip to see which can attract the paper clip from a greater distance.

I don't know why but I find your questions a bit too easy..

When solutes move AGAINST their concentration gradient (move from LOW concentrations to HIGH concentrations), it must use _______________________ to power its movement.

Answers

Energy. A solute can only move against concentration gradients using active transport which requires energy

“The movement of cytoplasm is due to the movement of chloroplasts in the living cells of onion plant”, “while the movement of chloroplasts is due to the movement of cytoplasm in the living cells of bean plants”

which statement is correct and which one is wrong

Answers

''The movement of chloroplasts is due to the movement of cytoplasm in the living cells of bean plants'' is the correct statement.

The above statement is correct because chloroplast is an organelle which moves in the cell through the medium known as cytoplasm. Cytoplasm is a thick fluid that fills every type of cell and organelles are floating as well as suspended in this fluid.  

All organelles such as the nucleus, endoplasmic reticulum, chloroplast and mitochondria etc are located in the cytoplasm. The portion of the cytoplasm except the organelles is called cytosol so we can conclude that chloroplast is an organelle which moves within the cell with the help of cytoplasm.

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How does ATP store energy and how is it released for cell processes

Answers

Answer:

Explanation:

In a process called cellular respiration, chemical energy in food is converted into chemical energy that the cell can use, and stores it in molecules of ATP. ... When the cell needs energy to do work, ATP loses its 3rd phosphate group, releasing energy stored in the bond that the cell can use to do work

Which question is a nonscientific question?
Why are roses the best flowers.
Does the color of a rose affect how long it blooms.
Will a rose plant bloom faster if it is fertilized.
Do rose plants grow faster in higher temperatures.

Answers

Answer: What roses are the best flowers is a non-scientific question.

Explanation: What flower is better is determined by personal opinion. I might think the red roses are prettier and you might think the white ones are. Where all the other questions can be tested all equally and it is not an opinion.

Answer:

why are roses the best flowers

How do differences between the peaks and valleys of the two graphs demonstrate interactions between these populations?

Answers

Answer:

peaks and valleys show population increase and decrease between 2 species or more.

Explanation:

the peaks and valleys are used to show predation hence if there is an increase in prey there will be an increase in the predators and if there is a decrease in prey there will be a decrease in predators therefore creating peaks and valleys in that graph hence demonstrating population interactions between the two species.

If an experiment was being conducted using an enzyme that was very sensitive to changes in pH (which could result in denaturation), what should be added to the experiment to prevent the enzyme from denaturing?
A. a buffering solution
B. extra substrate
C. an acid
D. a base

Answers

Answer:

maybe the answer is C..sorry if i wrong

If an experiment was being conducted using an enzyme that was very sensitive to changes in pH, a buffering solution must be added in order to prevent the enzyme from denaturing. Thus, the correct option for this question is A.

What is the denaturation of an enzyme?

The denaturation of an enzyme may be defined as a process through which a molecular structure of an enzyme gets deviate from its original state due to exposure to high temperature, pH sensitivity, etc.

The function of a buffering solution is to stabilize the pH of the given solution. It helps the other component of the solution to resist in response to pH change. A Buffer solution is capable to neutralize the effect of the small amount of acid or base.

Therefore, a buffering solution must be added in order to prevent the enzyme from denaturation. Thus, the correct option for this question is A.

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In order for a light bulb to be turned on in a circuit, it must have what kind of switch?

Answers

Answer:

It must have a closed switch.

Explanation:

The current cannot flow through the full circuit if the switch is open, therfore the light won't switch on. However, if the switch is closed, the current can run through the circuit and the light bulb will switch on.

Paired funnel shaped organs used for excretion in annelids

Answers

Answer:

Nephrdia(metanephridium)

What do you think is the more ethical and feasible approach to wildlife preservation: change human behavior to limit human impact, or create sanctuaries to preserve some of the threatened animals’ population? Why?

Answers

Answer:

I think we need to do both, but I'll let you decide which you think sounds better for you personally (personally I think sanctuaries are often more effective).

Explanation:

Behavior changes It is not really ethical to continue to have a negative impact when changing our behavior can help, however, this may not be ideal as explained below

Sanctuaries It is often more feasible to create preservation sanctuaries because 1) it is hard to get everyone to change enough habits in order to create large-scale change and 2) some species require more immediate action to save, whereas changing human behavior may not be enough and/or at the right pace to preserve and expand the populations of endangered populations

Depending on the main threat to a specific population, the approach will obviously be different.

chemicals, secreted by soil fungi, which inhibit the growth of bacteria, are known as _____.

Answers

Answer:

Antibiotics.

Explanation:

These are the things that inhibit bacterial growth.

Four people are spaced at different distances from where a dog is barking. The barking will sound the loudest to the
person who is standing
4 m away
o 15 m away
0 1 m away
O 12 m away

Answers

Answer:

C

Explanation:

Four people are spaced at different distances from where a dog is barking. The barking will sound the loudest to the person who is standing near the dog that will experience loud barking voice of dog. Thus the correct option is C that is 1m.

What is sound frequency?

Frequency is referred to as pitch that is the number of times per second that a sound pressure wave repeats itself.

The units of frequency are known as hertz (Hz). Humans can hearing can hear sounds between 20 Hz and 20,000 Hz.

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WRITE THE EVOLUTION ARIES OF MICROSCOPE WITH SUPPORTIVE INOVATIVE SCIENTIST.

Answers

Answer:

12345678910

Explanation:

trust me brooo

Which of the following is not a lipid?
Asteroid
B cholesterol
C
wax
D cellulose

Answers

Answer:

cellulose

Explanation:

lipids are fats oils or waxes. cellulose is a fiber

Answer:

cellulose    

Explanation:

Examples of lipids include fats, oils, waxes, certain vitamins (such as A, D, E and K), hormones and most of the cell membrane that is not made up of protein. Therefore waxes are not the answer.

Steroids are lipids because they are hydrophobic and insoluble in water, but they do not resemble lipids since they have a structure composed of four fused rings. Cholesterol is the most common steroid and is the precursor to vitamin D, testosterone, estrogen, progesterone, aldosterone, cortisol, and bile salts. Therefore steroid and cholesterol is not the answer.

3. Which of the following resembles a hypothesis?
Joe witnesses a shooting star and makes a wish.
Shen wonders how shooting stars form in outer space.
Rodney claims that shooting stars burn from entering Earth's atmosphere.
Jane researches how much friction causes combustion.

Answers

Answer:

Rodney claims that shooting stars burn from entering Earth's atmosphere.

Answer:

Rodney claims that shooting stars burn from entering earths atmosphere

Explanation:

what insects are sometimes called devil’s darning needles?

Answers

Those are call Scorpios, and it can be a very dangerous creature

what part of the cellular respiration pathway is affected by cyanide?

Answers

Eekekekeelewwwwxksms,skskskskksks,skskskskskekskdkdkkd

The ferric ions' cytochrome oxidase in the mitochondria makes a reversible chemical bond with cyanide. By preventing the conversion of oxygen to water, this essentially stops cellular respiration.

What is the role of cyanide in cellular respiration?

Heme-containing proteins include Fe3+, which cyanide binds to. As a result, the electron transport chain's terminal cytochrome complex IV is inhibited.

Cyanide's blockade of complex IV depletes ATP, which leads to cell death.

Because the molecules are so small and can disperse quickly throughout the entire body, cyanide can kill so quickly by damaging all major organs and tissues in a short period of time.

Therefore, electron transport system is affected by cyanide in cellular respiration.

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The movement of water across a membrane moving with the concentration gradient is called
A. facilitated diffusion
B. osmosis
C. active transport
D. None of the above

Answers

Answer: B

Explanation: Osmosis is the movement of water through a semipermeable membrane according to the concentration gradient of water across the membrane, which is inversely proportional to the concentration of solutes.

The answer is B, Osmosis.

because one original strand of the double-stranded helix is found in each daughter molecule, the replication process is called

Answers

Because one original strand of the double-stranded helix is ​​found in each daughter molecule, the replication process is called semiconservative.

Replication is the process by which a DNA molecule generates two identical to itself, and is key in cell reproduction.

All cells in the body must have the exact same genome (as in asexual reproductive organisms, which are practically clones of each other) and this is achieved through replication.

The process consists of separating the two strands of DNA, each of which will function as a template to synthesize a new one.

That is, each of the two strands of DNA serves as a template to synthesize a new complementary strand of the template.

In the end, two DNA molecules are formed, each of the two DNA molecules has a new chain and one original strand, this mode of replication is called semi-conservative.

Therefore, we can conclude that because one original strand of the double-stranded helix is ​​found in each daughter molecule, the replication process is called semiconservative.

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which statement about mitosis and cytokinesis is true

Answers

Answer:

At the end of cytokinesis there are two daughter cells with a normal complement of diploid genetic material.

Explanation:

hope this helps you if it does please mark brainiest

When two substances create a solution, what happens to its mass?
A.The mass is increased.
B.The mass is decreased.
C.The mass stays the same.
D.The mass disappears.

Answers

The mass is increased becuase you are adding two substances together, you are adding their individual masses together

why does sound travel fast in increased pressure?

Answers

It is because pressure and density both contribute to sound velocity equally, and in an ideal gas the two affects cancel out, leaving only the effect of temperature. Sound usually travels more slowly with greater altitude, due to reduced temperature.

What are all living things made of?

Answers

Answer:

All living organisms are made up of one or more cells, which are considered the fundamental units of life. Even unicellular organisms are complex! Inside each cell, atoms make up molecules, which make up cell organelles and structures. In multicellular organisms, similar cells form tissues.

Explanation:

Answer:

Cells!

Explanation:

The cell theory states that...

-Cells are the building blocks of life

-All living organisms are composed of one or more cells.

-All cells come from pre-existing cells

facts about cellulose (multiple choice)

a) it is a long chain
b) it is also called fiber
c) it is made of amino acids
d) it is indigestible by humans
e) it is made by plants
f) it is a subunit of fats and oils ​

Answers

Answer:

a maybe correct me if im wrong

I NEED HELP SO BAD MY TEACHER IS STARING AT ME
Imagine that a disorder that causes the cell cycle to stop affects the muscle cells of a frog’s leg. What consequence is most likely to follow?

A.The frog will immediately not be able to use the muscle.
B. An injury to the muscle will not heal.
C. The frog will not be able to reproduce.
D. A broken bone in that leg will not mend.

Answers

D .. A BROCKEN BONE IN THAT LEG WILL NOT MEND

how many calories are in an average trick-or-treaters halloween stash?

Answers

The number of calories on a Halloween stash depends on the type of candies and the number of units of each. If the stash contains 5 units of each of these candies: chocolate bars, taffies, lollypops, and candy corn the total number of calories is 1,650.

Calories are the most common unit used to define the energy a specific food gives to your body. For example, an apple has 52 calories, while a banana has 89 calories.

Considering this, in a Halloween stash the calories depend on two factors:

The types of candies or productsThe units of each one

Let's suppose there are 5 units of each of the following candies:

Chocolate barsTaffiesLollypopsCandy corn

Let's now calculate the calories

Chocolate bars = 220 calories x 5 units =  1,100 caloriesTaffies = 20 calories x 5 units = 100 caloriesLollypops = 83 calories x 5 units = 415 caloriesCandy corn = 7 calories x 5 = 35 calories

Add all the previous results:

1,100 + 100 + 415 + 35 = 1,650 calories in total

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Frank is putting money into a savings account. He starts with $750 in the savings account, and each week he adds $40.

Let S represent the total amount of money in the savings account (in dollars), and let W represent the number of weeks Frank has been adding money. Write an equation relating S to W. Then use this equation to find the total amount of money in the savings account after 17 weeks.

Answers

Answer:

750+(40xW)=S

750+(40x17)=----------

Explanation:

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