Answer:
In cells, some molecules can move down their concentration gradients by crossing the lipid portion of the membrane directly, while others must pass through membrane proteins in a process called facilitated diffusion.
Some large molecules and charged ions get through the cell membrane as
a result of osmosis, diffusion, facilitated diffusion etc.
Molecules get through the cell membrane through diffusion which is the
movement of substances from a region of higher concentration to a region
of lower concentration.
Facilitated diffusion is the same with diffusion but it makes use of a
substance for transport.
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A portion of the solar energy that arrives at the surface of a leaf is eventually converted to chemical energy and appears in the chemical bonds of carbohydrates that are generally regarded as the end-products of photosynthesis.
a. True
b. False
Answer:
Yes that is correct.
Photosynthesis combines 6 water molecules and 6 carbon dioxide molecules to form glucose (a carbohydrate)
Somebody help me please
_____ - is the study of how things work; gathering new information, new investigations.
Q: What's the answer?
Answer:
science
Explanation:
Explain the role of enzymes in growth
Enzymes help speed up chemical reactions in the human body.
•Which best describes how an ionic bond forms ?
A. Two atoms share valence electrons
B. Two molecules share an electron
C. Two atoms both lose an electron
D. One atom pulls an electron from another atom
Answer:
One atom pulls an electron from another atom.
Explanation:
In Ionic bonds, donating and gaining of electrons takes places.
What are pioneer species?
what scientist created the planetary model of the atom?
the shaft of a long bone is called the __________, while the expanded, knobby region at each end is called the __________.
give a brief account of enzymes as biological catalysts
Answer:
enzymes speed up a reaction but aren't used up during the reaction
Explanation:
a catalyst speeds up a reaction by lowering the amount of energy it takes for the reaction to occur enzymes are described as biological catalysts because they speed up the reaction without being used in the reaction
what is the first structure to emerge from a germinating seed
Answer:
The radicle is the first structure to emerge
The root apical meristem produces a root cap to protect the radicle, which emerges first from the seed to improve water uptake.
What is germination?Germination is the process through which a seed, spore, or other reproductive body typically breaks dormancy and begins the process of sprouting.
The embryo absorbs water and expands cells during seed germination. After water intake, or imbibition, respiration increases and metabolic functions, paused or greatly decreased during dormancy, resume. These processes are linked to structural changes in embryo cell organelles (metabolic membranes).
The radicle, which is the primary embryonic root, emerges from the seed first in order to maximize the plant's capacity to absorb water. The root cap, which is produced by the root apical meristem, serves to shield the radicle.
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Tyrone and Valerie wanted to determine what feature of a paper airplane would cause it to fly the farthest. Tyrone made his airplane with wider wings than Valerie's airplane. Valerie's airplane had shorter wings than Tyrone's. After testing the two airplanes several times, the data shows that wider wings help airplanes fly farther than shorter wings.
Which characteristic of science is missing from this experiment?
The question is not testable because paper airplanes are always changing.
The phenomenon is not observable because air resistance changes.
The experiment is not replicable because controlled variables are not included.
The results are not reliable because the airplanes were only tested one time.
Answer:
It's probably C
Explanation:
Nowhere in the question was there a control, or a variable to test fairness.
Answer: C
Explanation:
what type of bone tissue makes up the majority of the vertebral body
Answer:
if you want more explanation I can add to it
Explanation:
the spongy or cancellous bone tissue
The organisms native to an area will impact the types of soil found in that area.
Please select the best answer from the choices provided
T
F
Answer:
Trueeeee
Explanation:
trust :)
cellular respiration occurs in a sequential order. this allows the cell to
Cellular respiration occurs in a sequential order, this allows the cell to extract the energy it needs from glucose.
Cells need a constant supply of energy to preserve the biological order that keeps them alive, this energy comes from chemical bonds in food molecules, which are fuel for cells.
Cellular respiration is one of the most important processes that occur within living cells, it is constituted by a series of oxide reduction reactions, which allow obtaining energy through the degradation of an organic substance, glucose.
The cells that make up the body take advantage of the energy of chemical bonds, contained in glucose, when the molecule is degraded and oxidized to carbon dioxide (CO2) and H2O.
This energy is stored in the form of high-energy bonds (covalent bonds that release large amounts of energy when hydrolyzed) in ATP and NADPH molecules.
In turn, these carrier molecules are like portable sources of the chemical groups and electrons necessary for biosynthesis.
Therefore, we can conclude that cellular respiration occurs in a sequential order, this allows the cell to extract the energy it needs from glucose.
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Name the main defense cells of our body and its function.
Answer:
white blood cells also called leukocytes
which type of cell is responsible for bone deposition?
Answer:
Osteoblasts I believe
Explanation:
A protein is a bio molecule that is made of many small units called?
Answer:
Proteins are made up of hundreds or thousands of smaller units called amino acids, which are attached to one another in long chains. There are 20 different types of amino acids that can be combined to make a protein.
C6H12O6 + O2 → 6CO2 + 6H2O
As a balanced equation
(No spam answers or Ill report you)
Answer:
C6H12O6 + 9O2 → 6CO2 + 12HO
Explanation:
in eukaryotes dna and proteins combine to form
Answer:
In eukaryotes,DNA and proteins combine to form chromatin.
Explanation:
DNA is normally tightly packed into the nucleus of a eukaryotic cell, through protein-DNA complexes that form the characteristic condensed 'chromosome' shape.
How is discover Science different from hypothesis
based Science ?
Answer:
Descriptive (or discovery) science aims to observe explore and discover while hypothesis-based science begins with a specific question or problem and a potential answer or solution that can be tested
Match each step of the scientific method on the left with the statement it describes on the right.
(Example: 1 & D)
Steps of Scientific Method:
1. Make an observation
2. State the problem
3. Identify variables
4. Create a hypothesis
5. Design an experiment
6. Collect Data
7. Draw a conclusion
Statements:
a. Why aren’t the plants in my kitchen growing?
b. I will use three of the same type of plants. I will give plant A no water for one month. I will give Plant B five ounces of water daily for one month. I will give Plant C two ounces of water daily for one month. All plants will have access to direct sunlight for 6 hours a day.
c. When I water my plants with five ounces of water daily, they will grow and maintain large, healthy leaves.
d. The plants in my kitchen aren’t growing.
e. Will the amount of
The scientific method is a research method that consists of observations, measures, experimentation, analysis, and verification of a hypothesis. Matches: 1d, 2a, 3f, 4e, 5b, 6g, 7c.
---------------------------------
The scientific method is a research method that consists of systematic observations, measures, experimentation, analysis, and verification of a hypothesis. It is based on reproducibility and refutability.
When conducting an experiment, you need to consider,
Definition and problem statement. The question for which there is not an answer yet. A question the investigator wants to answer.Theoretical framework. Antecedents from other investigations. Previous knowledge about the study object is always required for a better understanding.The main goal of the study is basically what the investigator wants to find out.Hypothesis formulation. The researcher makes a hypothesis to predict or make a conjecture -not verified and which requires corroboration- about what is going on or expected to happen. Identification of the study groups, and involved variables -independent, dependent, and control-.Methodology description. Steps needed to get data.Results. It includes data collection and analysis. This step involves testing the observations.Discussion and Conclusion, through which the hypothesis might be rejected or accepted.According to this framework, we can answer the question
1. Make an observation
d. The plants in my kitchen aren’t growing.
2. State the problem
a. Why aren’t the plants in my kitchen growing?
3. Identify variables
f. The amount of water my plants are getting and how much the plants grow.
4. Create a hypothesis
e. Will the amount of water I give my plants affect their growth?
5. Design an experiment
b. I will use three of the same type of plants. I will give plant A no water for one month. I will give Plant B five ounces of water daily for one month. I will give Plant C two ounces of water daily for one month. All plants will have access to direct sunlight for 6 hours a day.
6. Collect Data
g. After one month I see that Plant A did not grow and its leaves are brown. Plant B’s stem has grown by 4 inches and its leaves are large and green. Plant C has grown by 1 inch and has small green leaves.
7. Draw a conclusion
c. When I water my plants with five ounces of water daily, they will grow and maintain large, healthy leaves.
-------------------------
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Answer:
1.d
2.a
3.f
4.e
5.b
6.g
7.c
Explanation:
I got it right and wanted to simplify it for you!!!
TIME REMAINING
42:20
Four solutes are added to a solvent. All solutes have the same mass and solubility. The surface areas of four solutes are 2 mm2, 4 mm2, 6 mm2, and 10 mm2. Which solute will dissolve the quickest?
2 mm2
4 mm2
6 mm2
10 mm2
Cell theory states: All living things are made of cells. The smallest living things are cells, and. 1. All cells are created separately. 2. All cells are created from other cells. 3. All cells are the same?
Answer:
2
Explanation:
they are all different cells
what is the biggest job that nucleic acids have
Answer:
the biggest job DNA and RNA have it making protein which are found inside the cell
basically the main function of a nucleic acid is to carry your biological information.
an enzyme that transfers a phosphate moiety in a reaction is called a
Answer:
kinase
Explanation:
the correct answer
what is the resulting product of cellular respiration?
Answer:
Carbon dioxide, ATP and water.
Overpopulation of an animal species can be detrimental to the ecosystem.
ОА.
True
OB.
False
Answer:
True
Explanation:
Answer:
True
Explanation:
Wandering. When overpopulated animals are starving, their innate survival instincts cause them to wander into unnatural places in search of food. In many cases, overpopulated animals will wander into areas populated by humans. The outcome is animals killed on the highway, property damage and human injury.
what substances are transported from the leaves to the rest of the body
Tissue - Process - What is moved
Xylem -Transpiration - Moves water and minerals from roots to leaves
Phloem - Translocation - Moves food substances from leaves to rest of plant and from stores such as in the roots
i need help please i don’t understand
the primary visual area is located in which lobe of the brain?
Answer:
Cerebrum
Explanation:
It is found in the forebrain