Answer:
c
Explanation:
know it
Due today! Plss Help!
(1)What are the components of the cell theory?
1.
2.
3.
(2)What did Van Leeuwenhoek observe, and how did it impact the development of the cell theory?
(3)What did Hooke create, and what impacts did he make on the development of the cell theory?
(4)Briefly describe the importance that Brown had on the development of the cell theory.
(5)What discoveries did Schleiden publish and what impact did he have on the development of the cell theory?
(6)What impact did Schwann have on the development of the cell theory?
(7)What did Von Roelliker discover?
(8)What did Virchow add to the development of the cell theory?
(9)Describe Pasteur’s experiments and the observations he made.
(10)What do all living things have?
Answer:
1.
1) All living organisms are composed of one or more cells.
2)The cell is the basic unit of structure and organisation in organisms.
3) Cells arise from pre-existing cells.
2. The first observations of bacteria and protozoa. His extensive research on the growth of small animals such as fleas, mussels, and eels helped disprove the theory of spontaneous generation of life.
3. law of elasticity (Hooke's law), for his first use of the word cell in the sense of a basic unit of organisms (describing the microscopic cavities in cork), and for his studies of microscopic fossils, which made him an early proponent of a theory
4. His discovery of the nucleus and its role helped to put together the cell theory, which states that all living organisms are composed of cells, and cells come from pre-existing cells.
5. He published his findings and called the process he saw “binary fission”. He concluded that all plant tissues are composed of cells and that an embryonic plant arose from a single cell. He declared that the cell is the basic building block of all plant matter.
6. Schwann demonstrated the same fact for animal tissues, and in 1839 concluded that all tissues are made up of cells: this laid the foundations for the cell theory.
7. that the sperm and egg were composed of cells and that humans are formed of cells from beginning to end.
8. In 1855, he further developed his ideas by publishing his famous aphorism omnis cellula e cellula which became a part of the foundation for cell theory. Virchow's theory stated that just as animals are unable to arise without previously existing animals, cells are unable to arise without previously existing cells.
9. Pasteur's experiment showed that microbes cannot arise from nonliving materials under the conditions that existed on Earth during his lifetime. The experiment had to do with Pasteur adding nutrient broth to flasks, bent the necks of the flasks into S shapes, and then boiled the broth to kill any existing microbes.
10. All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing.
Explanation:
Hope thise helped.
Help need now!
(1) Define homeostasis.
(2) What are the two ways a substance can move through a cell’s membrane?
(3) What is passive transport? Will particles move to an area of higher or lower concentration?
(4) How do large molecules move across the cell membrane through facilitated diffusion?
(5) Describe what happens during osmosis.
(6) What are aquaporins?
(7) What is active transport?
(8) Why is energy needed for active transport? Will particles move to an area of higher or lower concentration?
(9) Describe endocytosis.
(10) Describe exocytosis.
Answer: 1Homeostasis is the ability to maintain a relatively stable internal state that persists despite changes in the world outside. All living organisms, from plants to puppies to people, must regulate their internal environment to process energy and ultimately survive. 2Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane. 3In passive transport, substances simply move from an area of higher concentration to an area of lower concentration, which does not require the input of energy. Concentration gradient, size of the particles that are diffusing, and temperature of the system affect the rate of diffusion. 4In facilitated diffusion, molecules diffuse across the plasma membrane with assistance from membrane proteins, such as channels and carriers. A concentration gradient exists for these molecules, so they have the potential to diffuse into (or out of) the cell by moving down it.5: Osmosis: In osmosis, water always moves from an area of higher water concentration to one of lower concentration. ... Water has a concentration gradient in this system. Thus, water will diffuse down its concentration gradient, crossing the membrane to the side where it is less concentrated. 6Aquaporins, also called water channels, are channel proteins from a larger family of major intrinsic proteins that form pores in the membrane of biological cells, mainly facilitating transport of water between cells. 7In cellular biology, active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration—against the concentration gradient. Active transport requires cellular energy to achieve this movement.8During active transport, substances move against the concentration gradient, from an area of low concentration to an area of high concentration. This process is “active” because it requires the use of energy (usually in the form of ATP). It is the opposite of passive transport.9Endocytosis definition and purposes. Endocytosis is the process by which cells take in substances from outside of the cell by engulfing them in a vesicle. ... Endocytosis occurs when a portion of the cell membrane folds in on itself, encircling extracellular fluid and various molecules or microorganisms.10Exocytosis describes the process of vesicles fusing with the plasma membrane and releasing their contents to the outside of the cell, as shown in Figure below. Exocytosis occurs when a cell produces substances for export, such as a protein, or when the cell is getting rid of a waste product or a toxin
Explanation:
Why are Punnet squares specific to each offspring?
PLEASE HELP. I WILL GIVE BRAINLIEST AND A LOT OF POINTS.
Answer:
Genetic linkage is a phenomenon where two genes exist close to each other on the same chromosome. ... In addition, when a single trait is determined by multiple genes and the effect of each of these genes is graded, Punnett squares cannot accurately predict the distribution of phenotypes in the offspring.
Explanation:
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Explain the electron pathway of the light reactions, and list the order in which each complex participates in the pathway.
Spirilla, a type of bacteria, are a organelles b prokaryotes c mitochondria d eukaryotes
Answer:
B procaryotes
Explanation:
I just got it right
Bacteria are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Therefore, option (B) is correct.
Bacteria are minute, single-celled creatures found in millions.
Bacteria come in a wide variety of varieties. One approach to categorize them is according to form. The fundamental forms are three.
Every form group contains a wide range of variants.
Therefore, option(B) is the correct answer.
Learn more about bacteria, here:
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Which is a disaccharide?
1. glucose 2. fructose 3. sucrose 4. cellulose
Answer:
surcrose
Explanation:
I googled it
Answer:
3. sucrose
Explanation:
The living material that lines the inside of one's cheek is —
The living material that lines the inside of one's cheek is mucous membrane
In a monohybrid cross, if the gene for tall (T) plants was incompletely dominant over the gene for short (t) plants, what would be the predicted result of crossing an intermediate (Tt) plant with a tall (TT) plant? (Hint: You may want to complete a Punnett square.) 50 percent tall, 25 percent intermediate, 25 percent short 25 percent tall, 50 percent intermediate, 25 percent short 50 percent tall, 50 percent intermediate 100 percent intermediate
Answer:
It would be 50/50
Explanation:
If you do appointment square with TT and Tt you would have two sets of TT and two sets of Tt
Can u help me please
Moving up the food chain, the energy available to the organisms decreases due to metabolic heat. (You can add the second law of thermodynamics into it, if you want)
For example, in the rules of tens, the plants start with 100% of the energy but the fi red t level consumers gain 90% of the energy due to the fact energy transfers through heat.
Because of the change is available energy, consumers at the higher levels of the food chain are forced to hunt larger amounts of prey to sub stain themselves.
Farmers often spray chemicals on their crops to keep insects away. Some insects die from these chemicals, but some insects
continue to live. What will MOST LIKELY happen to the insects that live?
A)
They will be unable to lay eggs.
B)
They will start eating other crops.
They will produce more insects that can survive.
D)
They will be able to protect themselves from all types of chemicals.
compare the size of bacteria to a cheek cell.
Answer: Got this from google... Cheek cells are much larger than the bacteria cells. The bacteria cells are found INSIDE the cheek cells. The bacteria cells are capsule-shaped and the cheek cells are round. Hope i answered the question right... Hope you all stay safe and have a great day!!! :D
How do sea urchins alter the ecosystem if their population gets too big?
The overpopulation of the sea urchin population might magnify the impact of the negative growth conditions of kelp beds by eating what's left or what grows in the next few years.
Hello this is due today and it is science.
I will mark brainliest!
Answer:
[tex]\boxed {\boxed {\sf Cellular \ respiration}}[/tex]
Explanation:
This process is known as cellular respiration.
This occurs in the mitochondria (the powerhouse of the cell) in both plant and animal cells. The equation is:
[tex]C_6H_{12}O_6+6O_2->6CO_2 + 6H_2O+38 \ ATP[/tex]
Glucose (obtained from eating food in animals and photosynthesis in plants) and oxygen is converted into carbon dioxide, water, and energy. The energy is used in the organisms for movement, growth, and repair.
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What types of cells may not undergo mitosis at all?
A. hair
B. brain
C. skin
D. cheek
Answer:
brain
Explanation:
A dilute solution has a
concentration of
molecules
O A. high, water
B. high, dissolved
C. low, water
D. equal, water and ion
It's Letter A.
Explanation:know why? it because molecules has a Higher concentration of water molecules.
When a solution is dilluted, more water is added to make the solution less the high concentrated!Answer:
Dilute solutions have a high concentration of water molecules.
Inside the cell is 40% helium and outside the cell is 20% helium. Which of
the following will occur? *
A. helium will move out of the cell
B. helium will move into the cell
C.helium will not move
Answer:
A. Helium will move out of the cell
Inside the cell the concentration is higher than concentration off outer cell so the inner helium well more about of cell
Answer:
[tex]\boxed {\boxed {\sf A. \ Helium \ will \ move \ out \ of \ the \ cell}}[/tex]
Explanation:
Diffusion is the movement of particles from a high concentration to a low concentration. This is the process occurring in this question.
In this cell, 40% helium is inside the cell.
20% is outside of the cell.
40 is greater than 20. Therefore, the helium wants to move from the area of 40% to 20%, which is also from the inside of the cell to the outside. Basically, the helium moves out of the cell.
So, the best answer is choice A: helium will move out of the cell.