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.

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!

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

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.

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

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.

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 ​

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?

help please!! will mark brainliest ​

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

which statement about mitosis and cytokinesis is true

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

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

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.

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

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.

What are all living things made of?

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.

Paired funnel shaped organs used for excretion in annelids

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

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

why does sound travel fast in increased pressure?

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

WRITE THE EVOLUTION ARIES OF MICROSCOPE WITH SUPPORTIVE INOVATIVE SCIENTIST.
​

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

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

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.

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?

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

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

“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

what insects are sometimes called devil’s darning needles?