Answer:
B
Explanation:
The cell membrane is made up of a "lipid bilayer" This means that there is are two lipid molecules, each of which has a hydrophilic(water loving) head and hydrophobic(water hating) tail. In the membrane there are 2 molecules facing away from each other such that the head of the lipid faces out and the tail is on the inside. Therefore, with the hydrophobic tail on the inside or center of the membrane it would repel water.
The outer part and the center of the cell membrane are both hydrophobic, which means they repel water.
The cell membrane is a lipid bilayer, which means it is made up of two layers of phospholipids. Phospholipids are molecules that have a hydrophilic head and a hydrophobic tail. The hydrophilic head is attracted to water, while the hydrophobic tail is repelled by water.
The outer part of the cell membrane is exposed to the extracellular fluid, which is mostly water. The hydrophobic tails of the phospholipids in the outer part of the cell membrane are repelled by the water, which helps to keep the membrane from dissolving in the extracellular fluid.
The center of the cell membrane is also hydrophobic because it is made up of the hydrophobic tails of the phospholipids. The hydrophobic tails of the phospholipids in the center of the cell membrane are repelled by each other, which helps to keep the membrane from collapsing.
The membrane layer facing into the cell is also made up of phospholipids, but the hydrophilic heads of the phospholipids in this layer are facing inward, towards the cytoplasm of the cell. The hydrophilic heads of the phospholipids are attracted to the water in the cytoplasm, which helps to keep the membrane from dissolving in the cytoplasm.
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Select the correct answer.
Which one of the following is NOT a macromolecule?
O protein
nucleic acid
carbohydrate
water
Which organelle in a plant cell is most affected when a plant has not received any water? Explain your reasoning.
Explanation:
that's why hope it helps you
Whenever the translation molecule reads the codon UGA, what occurs
Answer: It begins when a stop codon (UAG, UAA, or UGA) enters the ribosome, triggering a series of events that separate the chain from its tRNA and allow it to drift out of the ribosome.
Explanation:
spermatogenesis results in (a) two haploid cells (b) three haploid bodies (c) one haploid sperm cell and three polar bodies (d) four haploid sperm cells
D - The meiosis process results in the split of the cell into 4
what do you call to those animals that eat both plants and animals ?
Answer:
omnivores eat both meat and plants
carnivores eat meat
herbivores eat plants
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Question 1 of 12
Renal System - Practice - 7207
-
Release of ADH from the posterior pituitary gland is stimulated by
O increased blood volume
o increased osmotic pressure of plasma
O low osmotic pressure of interstitial fluid
O alcohol consumption
O All of the choices are correct
Answer:
o increased osmotic pressure of plasma
The primary factors which determine each biome are:
land features
plate tectonics
sunshine
rainfall
temperature
Answer:
temperature is the most important factor of any biome
Karl Marx promoted Which economic idea?
A. Market economies will break down because workers will demand more power.
B. Businesses should spend their own funds instead of borrowing from banks.
C. Trade between countries is dangerous and should be limited whenever possible.
D.Governments have no legal right to force any person or business to pay taxes
Answer: C.
Explanation:
When exercising routinely, timing the food that you eat around your exercise activities is important and has a significant impact on your energy levels. Carbohydrate intake, in particular, can affect performance, with simple carbohydrates and complex carbohydrates having different ideal times for consumption. The best types of carbohydrates to eat during and/or immediately after exercise are simple carbohydrates, whereas complex carbohydrates are ideally consumed a couple of hours before exercise. Complex carbohydrates take longer to digest and enter the bloodstream and can help build glycogen stores. Sort the following food items
a. Foods rich in simple carbohydrates.
b. Foods rich in complex carbohydrates.
c. Foods without carbohydrates
Answer:
(a.) Foods rich in simple carbs- Low fat smoothie and sport drinks with glucose
(b.) Foods rich in complex carbs- whole-wheat pancakes, whole-wheat spaggetti with marinara sauce and brown rice with vegetables
(c.) Food without carbs- grilled salmon and roasted chicken breast
Explanation:
Simple carbs are easy to digest and eaten before a workout, hence the sports drink and low-fat smoothie falls under that category, while complex carbohydrates are hard to digest...think anything with wheat.
Give two ways the sperm cell is adapted for fertilisation
Answer: (1) It has a tail to travel to the egg (2) contains a nucleus in the head which will fertilise the egg
Explanation: Firstly it has a tail to help it travel to the egg. Secondly it contains the nucleus in the head that will fertilise the egg. Thirdly the acrosome contains enzymes in order for the sperm to penetrate the egg. Finally, the sperm cell is packed with mitochondria to provide the energy needed to reach the egg.
Sperm cells are highly specialized for the purpose of fertilization. Here are two ways in which sperm cells are adapted for this process: Streamlined shape, Acrosome, and enzymes.
1. Streamlined shape: Sperm cells have a streamlined shape, often described as being tadpole-like, with a long and slender tail (flagellum) and a compact head region.
This shape is adapted for efficient swimming through the female reproductive tract to reach the egg. The flagellum allows the sperm to propel itself with whip-like movements, providing mobility and the ability to navigate through the female reproductive system.
The streamlined shape reduces drag and enables the sperm to move swiftly towards the egg, increasing the chances of successful fertilization.
2. Acrosome and enzymes: The head region of a sperm cell contains a specialized structure called the acrosome. The acrosome is a cap-like structure that covers the front portion of the sperm's head.
Inside the acrosome, there are enzymes, such as hyaluronidase and acrosin, which play a crucial role in fertilization.
When the sperm reaches the vicinity of the egg, the enzymes are released and help the sperm penetrate through the protective layers surrounding the egg, such as the zona pellucida.
Thus, the streamlined shape and the presence of the acrosome with enzymes are two important adaptations of sperm cells that increase their chances of successful fertilization by facilitating efficient swimming and penetration of the egg's protective layers.
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based on what factor do we choose the method of separation for different components of a mixture?
Answer:
Different components of a mixture have different properties on the basis of which we device the method that is used to separate it from other components of the mixture
-TheUnknownScientist 72
How are the different fields of biology related to each other
Answer:
Modern principles of other fields— chemistry, medicine, and physics, for example—are integrated with those of biology in areas such as biochemistry, biomedicine, and biophysics. Biology is subdivided into separate branches for convenience of study, though all the subdivisions are interrelated by basic principles.
Explanation:
Answer:
Hey mate.....
Explanation:
This is ur answer.....
There are three major branches of biology – botany, zoology and microbiology. Botany is the branch of biology which deals with the study of different aspects of plants. Theophrastus is known as the father of Botany. Zoology is the branch of biology connected with the study of different aspects of animals.
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3 parts of a nucleotide are
Answer:
Nucleobase, Five-carbon sugar, phosphate group.
Base, sugar and group.
Explanation:
Nucleotides are composed of three subunit molecules: a nucleobase, a five-carbon sugar (ribose or deoxyribose), and a phosphate group consisting of one to three phosphates.
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All organic compounds contain the element a. Carbon b. Hydrogen c. Nitrogen
Answer:
yes
Explanation:
becawse organic cpd are a compound that formed from living things
Which nucleotide component contains nitrogen?
The M phase of the cell cycle consists of both mitosis and cytokinesis. Mitosis refers to ___, whereas cytokinesis refers to __
Answer:
Mitosis refers to nuclear division whereas cytokinesis refers to cytoplasmic division.
Explanation:
The M phase of the cell cycle consists of both mitosis and cytokinesis. Mitosis refers to cell division, whereas cytokinesis refers to cytoplasm division.
What is Mitosis?Mitosis is a type of the cell cycle in which the cells replicate their chromosomes and these are separated into two new nuclei. Cell division by the process of mitosis which gives rise to genetically identical cells in which the total number of chromosomes is maintained in the cells. Therefore, mitosis is also known as equational division or equational cell division.
Cytokinesis is the process of cytoplasmic division. This division of cytoplasmic content occurs through two different methods in plant cell and animal cell through the cell plate formation and cell furrow formation.
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GIVING BRAINLY!! The relationship between the mass of an object and its weight on Earth is constant.
A True
B) False
Answer:
The mass of an object is never zero. You measure mass with an ordinary balance on Earth or an inertial balance in space. Weight depends on the effect of gravity, so it can change depending on where it's measured. In the absence of gravity, weight can be zero.
Explanation:
hope this helps
The bald eagle almost went extinct when humans began using a pesticide called DDT. What can you conclude from the fact that bald eagle numbers have since rebounded?
Answer:
. Humans re-shape their environment, putting pressure on other species.
Explanation:
What are sex pilli?
it involved in the transfer of genetic material from one cell to another.
What is the true nature of science?
Answer:
Scientific Knowledge Is Based on Empirical Evidence; Scientific Knowledge Is Open to Revision in Light of New Evidence; Science Models, Laws, Mechanisms, and Theories Explain Natural Phenomena. Science Is a Human Endeavor; and. Science Addresses Questions About the Natural and Material World.
from the roots up through the stems and into the leaves, replacing
the water used in ———— ??
Answer:
Transpiration
Explanation:
Plants lose water by transpiration.
The answer to this question I can’t figure it out
Answer:
lactic acid.
Explanation:
Fermentation is a metabolic process that produces chemical changes in organic substrates through the action of enzymes. In biochemistry, it is narrowly defined as the extraction of energy from carbohydrates in the absence of oxygen. In food production, it may more broadly refer to any process in which the activity of microorganisms brings about a desirable change to a foodstuff or beverage.[1] The science of fermentation is known as zymology.
Can someone help me, my paper is due tonight.
Describe solution concentration outside the cell in terms of hypotonic, hypertonic and isotonic.
Answer:
see below
Explanation:
Hypotonic solution is a very dilute solution to the more concentrated solution. Hypo means under . A solution with a lower concentration of solutes than the cytoplasm of a cell, that solution is hypotonic to the cytoplasm. The cell expands as water moves in.
Hypertonic solution is a more concentrated solution to cytoplasm. Hyper means above. A hypertonic solution has higher concentration of solutes than the cytoplasm of the cell. The cell shrinks as its cytoplasm loses water.
Isotonic solution is when two solutions of equal concentration are separated by a semi permeable. Iso means equal. Therefore, in isotonic solutions, water movement out of a cell balances the water movement into it. Cells in the body are usually surrounded by a fluid. The cytoplasm in the cell is usually isotonic to the fluid outside the cell. Hence, no net gain or loss of water by cells.
So, basically, if a cell is placed in a hypertonic solution, water will leave the cell, and the cell will shrink. In an isotonic environment, there is no net water movement, so there is no change in the size of the cell. When a cell is placed in a hypotonic environment, water will enter the cell, and the cell will swell.
Do you have 5th grade
science for kids in Texas
Answer:
Yes, indeed they do.
Explanation:
I called my cousin in texas just to make sure this answer is correct. No problem.
GIVING BRAINLY!! Two factors affecting the magnitude of force of gravity between 2 objects are...
A mass and distance
B) distance and weight
c) mass and matter
Dweight and mass
Answer:
the answer is A I learned this last year
Explanation:
Which property is shared by the cells of all living things?
A. The cells contain DNA composed of adenine, thymine, guanine, and cytosine.
B. The cells have chromosomes that are located inside a membrane-bound- nucleus.
C. The cells are surrounded by a phospholipid bilayer and a cell wall made of
cellulose.
D. The cells rely on mitochondria to carry out aerobic cellular respiration.
Answer:
A
Explanation:
B) not all cells have a nucleus. For example, prokaryotes have no nucleus
C)Not all cells have a cell wall.(Animal cells don't)
D) not all cells have mitochondria (Prokaryotes don't)
A) all cells contain DNA, and DNA is all composed of adenine, thymine, guanine, and cytosine.
Living things are those organisms that have life and they possess the basic characteristics that enable them to be termed as living. This include growth, reproduction, irritability etc.
The property listed in the options shared by cells of all living things is the cell contain DNA composed of adenine, thymine, guanine and cytosine.
All living things contain the genetic material (DNA) that carry the needed information essential for their cells to function. Although some living things do not have a membrane bound nucleus eg prokaryotic cells. Many differences therefore exists that differentiates the living things from one another bringing them into groups.Learn more: https://brainly.com/question/18628083
When you need to convert from one system of measurement to another, you should convert to the a) system that will have the highest number. b) system that will have the smallest number. c) system used on the medication label. d) metric system.
Answer:nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn
Explanation:
mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmjnn bnnnnnnnn
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The factor in the environment that does NOT depend on the number of members per unit area?
1) Predation
2) Competition
3) Pollution
PLEASE PLEASE
What chemical in the chloroplast captures sunlight for photosynthesis to take place?
Answer:
pigment chlorophyll
Explanation:
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