The cell membrane is said to be semipermeable because

Answers

Answer 1

Answer:

it is made of phospholipid bilayer along with other various lipids, proteins, and carbohydrates


Related Questions

how are most of the non-essential amino acids made in the body?

Answers

I think it is glucose

A directional response that allows plants to grow towards light is called:

Answers

Answer:

Phototropism

Explanation:

It is the directional response that allows plant to grow towards or in some cases away from a a source of light

At this point, 6 carbon dioxide molecules have
been released (2 from the link reaction and 4
from the Krebs cycle). Why does this make
sense?
Glucose has combined with oxygen to make carbon dioxide.
Glucose has 6 carbons and has been completely broken down by this stage.
The 6 carbon dioxides are reactants that will be used to make ATP.
These 6 carbon dioxides are converted to oxygen by respiration.
All of these.

Answers

Glucose has combined with oxygen to make carbon dioxide and Glucose has 6 carbons and has been completely broken down by this stage.

Glucose react with oxygen to make carbon dioxide, water and energy in the form of ATP.  Glucose has 6 carbon atoms which react with oxygen that is  completely broken down into three products such as carbondioxide, water and energy in the form of ATP by the process of cellular respiration so we can conclude that carbondioxide gas is produced by breaking down of glucose molecules from the Krebs cycle that is a stage of respiration.

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How many chromosomes does a normal passeriformes have?

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Answer:

In general, bird karyotypes have a high diploid number (2n) of typically around 80 chromosomes that are divided into macro- and microchromosomes

Please, could someone help me with this?

Answers

1. abortion

2. testing cosmetic products on animals

hope this helps :)

HELPPPP!!!

Describe an example of how island biogeography principles were used to explain biodiversity changes in areas that were not specifically islands.

Answers

Answer:

How Biogeography Affects Biodiversity

Alfred Russel Wallace, Father of Biogeography

Figure 1: Alfred Russel Wallace, Father of Biogeography

Some places contain more species than others. For example, Antarctica has fewer species than a temperate deciduous forest, which in turn has fewer species a tropical rainforest. For over 150 years, researchers have sought to make sense of the gross and fine scale spatial patterns in biodiversity, and to elucidate both the proximate and ultimate causes for these patterns.

This article describes some of the major geographic patterns in species richness, and the processes and theories that are thought to account for these patterns. Much of this knowledge has emerged from the tremendous body of work from one scientist, Alfred Russel Wallace (Figure 1), widely regarded as the “Father of Biogeography.” Aside from co-originating the process of Natural Selection with Charles Darwin, Wallace spent extended periods studying the distribution and diversity of plants and animals in Amazonia and Southeast Asia in the mid 1800s. Many of the patterns and processes featured in this article were initially described by Wallace, and careful study of his work indicates that his ideas presaged many of the discoveries made by his numerous successors.

Many of the spatial patterns in biodiversity are overt, others are subtle and yet additional patterns remain undetected. While the existence of these patterns may be obvious — and changes in the environment that are paired with these patterns may also be obvious — the mechanisms that cause the differences in biodiversity along environmental gradients are under still the subject of scientific debate. Because large-scale patterns are the emergent result of complex interactions at many spatial and temporal scales, no single answer is likely to ever emerge, but with continued research our understanding of the processes shaping these patterns increases.

Historical Processes Affecting Biogeography

Darwin's finches of the Galapagos Islands are a classic example of adaptive radiation.

Figure 2: Darwin's finches of the Galapagos Islands are a classic example of adaptive radiation.

All species occurring in at a given place and time either arrived from another place or originated in that location from ancestral species. This fact applies to extinct species that were ancestors of all extant species. Species richness in a given location is the result of three factors — the rate of speciation, the rate of extinction, and the dispersal of species from other locations. In principle, if biogeographers could understand how the current and past environment has shaped these three factors, we would then obtain a comprehensive understanding of what generates all biogeographic patterns of species richness. However, numerous environmental and organismal parameters can drive these historical factors, in both complex and interacting fashions.

a paleoanthropologist specializes in the study of the

Answers

Explanation:

study of human evolution through the fossil and archaeological records

what balances the skills and equipment of the hunter with the abilities of the animal to escape

Answers

Fair chase rules the hunter has no advantage over a wild game.

Fair Chase strikes a balance between the hunter's ability and tools and the animal's capacity for escape. Fair Chase is mainly determined by people and their level of hunting prowess.

What is fair chase?

Fair chase is defined as a term used by hunters to refer to a moral method of taking down large game animals. A fair chase is the ethical, sportsmanlike, and legal chase and taking of any free-ranging wild game animal in a way that does not offer the hunter an improper or unfair advantage over the game animals, according to the Boone and Crockett Club.

A wildlife management organization establishes hunting laws in the majority of states. Regular meetings of these organizations will allow members of the public to express their opinions and offer suggestions. When the entire hunting experience is their major focus, seasoned hunters reach the sportsman stage. Although they may still have a target animal or a number of kills in mind, hunters at this stage don't plan their hunts around these objectives.

Thus, fair chase strikes a balance between the hunter's ability and tools and the animal's capacity for escape. Fair Chase is mainly determined by people and their level of hunting prowess.

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why does max scherzer have two different colored eyes?

Answers

Answer:

he has heterochromia iridis

Explanation:

Scherzer has an uncommon condition called heterochromia iridis that affects less than 200,000 people in the United States. The condition, which in most cases doesn't damage the eyes, is caused by the distribution and levels of melanin in the irises

How to make bacteria as a treatment for sewage waste

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Answer: Bacteria break down organic material in wastewater and form the floc that settles and separates solids from liquids. Controlling F/M ratio–a vital component to creating a favorable environment for wastewater bacteria–can be accomplished through the use of bioremediation products. Bacteria account for 95% of the microorganisms in wastewater. They are single-celled microorganisms that are classified based on their response to oxygen.

Aerobic bacteria use oxygen, which is added mechanically, to break down wastewater contaminants, converting it into energy. Bacteria use this energy to grow and reproduce. Anaerobic bacteria obtain oxygen from their food source. As anaerobic bacteria break down sludge, they produce methane gas. This methane gas can be used as an alternative energy source, called biogas, to fuel the wastewater treatment process. Anaerobic bacteria can also be used to lower the amount of phosphorus in the effluent. Although they prefer oxygen, facultative bacteria can switch between aerobic and anaerobic forms in response to their environment.

what is occurring during the s phase of the cell cycle?

Answers

During S phase (synthesis), DNA replication takes place. Completion of DNA synthesis is followed by G2 phase during which cell growth continues and proteins are synthesized in preparation for mitosis. S page lasts for 8 hours approximately.

What determines whether a metamorphic rock is foliated or nonfoliated?

Answers

Answer:

i think its the third.

temperature,pressure and the original type of rock

True or False: The radius is the bone in the forearm that is on the same side as the pinky finger.

Answers

Answer:

false.  ulna is on pinky side, radius is on thumb side

Explanation:

Answer:

False

Explanation:

2.3 content quiz (Anatomy Plato)

❗WILL GIVE BRAINLIIEST❗Which statement describes a characteristic of a question that can be answered through scientific inquiry?
A. It must be related to something that benefits society.
B. It can be answered by collecting votes from scientists.
C. It is constructed in such a way that possible answers can be tested.
D. It can be answered using an ethical argument.​

Answers

Answer:

The answer is C

Explanation:

The answer is C because it can be answered using scientific methods, the scientific method is a good way to test something, and so therefore C is the answer

Hope that helped! Can I also get brainliest? I need a few more to advance, if not thank you anyways and have a nice day!!!

in a eukaryotic cell, where is most of the dna located?

Answers

it is located in the nucleus

The cell membrane is a unique structure that has many functions.
How is the cell membrane involved in riding the body of bacteria,
allowing water to enter the cell, and export material out of the cell?

Answers

Answer:

The cell membrane, also called the plasma membrane, is found in all cells and separates the interior of the cell from the outside environment. The cell membrane consists of a lipid bilayer that is semipermeable. The cell membrane regulates the transport of materials entering and exiting the cell.

Explanation:

What is the plasma (cell) membrane? What is its main function?

Answers

The plasma membrane, also called the cell membrane, is the membrane found in all cells that separates the interior of the cell from the outside environment.

The plasma membrane, or the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell. And that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell.

The plasma membrane is the outermost layer of a cell. It’s mainly responsible to act as a barrier to maintain proteins within the cell

how you would use the light microscope to view a wet mount of a protest, assuming the microscope is plugged in and that the light source is on

Answers

Answer:

1.Collect a thin slice of your sample and place it on a clean, dry slide 2.Place one drop of water over your sample 3. Place the coverslip at a 45-degree angle with one edge touching the water and let go 4. Your slide is ready to be viewed.

Explanation:

Hope It Help

The world's human growth rate is dependent on
a the birth rate
b the death rate
C A and B

Answers

C I’m pretty sure it depends on how many people are dying compared to how many are being born
The answer to your question is C

what must come together in order for atp to be made

Answers

cellular respiration is needed for atp to be made. it needs sunlight, glucose and oxygen. i’m pretty sure the main answer would just be glucose and oxygen though.


Microorganisms often lead to infection because they-

Answers

Hi!

Infection occurs when viruses, bacteria, or other microbes enter your body and begin to multiply. Disease, which typically happens in a small proportion of infected people, occurs when the cells in your body are damaged as a result of infection, and signs and symptoms of an illness appear.

How would life on Earth be affected if water was less dense than ice?

Answers

Answer:

freeze and sink over and over until the entire lake was frozen.

Explanation:

This would eliminate many aquatic organisms and produce a system with far fewer life forms in lakes which freeze periodically.

give examples of terrestrial food chain.(one edaphic food chain and one aboreal food chain​

Answers

Answer:

Nectar (flowers) - butterflies - small birds - foxes.

Dandelions - snail - frog - bird - fox.

Dead plants - centipede - robin - raccoon.

Decayed plants - worms - birds - eagles.

Fruits - tapir - jaguar.

Fruits - monkeys - monkey-eating eagle.

Grass - antelope - tiger - vulture.

Grass - cow - man - maggot.

Explanation:

Answer:

Grass-Grasshopper-Snake-Hawk

Explanation:

very simple one

I need help
please ASAP ​

Answers

Integumentary System - Hair loss.
Digestive System - Vomiting.
Circulatory System - Anaemia.
Immune System - Increased susceptibility to infections.

I apologise if this is too late.

The Salmonella bacteria infect human, when eating contaminated food or water, causing some symptoms as diarrhea. Which part of the alimentary canal is most affected ? A) Mouth B) Intestine C) Oesophagus D) Pharynx ​

Answers

Answer:

B. Intestine

Explanation:

Salmonella bacteria live in the intestines of people, animals and birds. Most people are infected with salmonella by eating foods that have been contaminated by feces. Commonly infected foods include: Raw meat, poultry and seafood.

A competitive inhibitor of DNA helicase was introduced into a cell. How would the introduction of this inhibitor affect DNA replication?

A) There would not be enough energy to drive the DNA replication process

B) Free nucleotides would be unable to join complementary base pairs.

C) Nucleotides would be unable to join together by condensation reaction to form a polynucleotide.

D) Some of the DNA would be unable to separate into two strands.

Answers

Answer:

Some of the DNA would be unable to separate into two strands.

Explanation:

It will effect as some DNA would be unable to separate into two strands.

In multicellular organisms, cells working together and performing similar functions are called...

Question 9 options:

organ systems.


organisms


tissues


organs

Answers

Answer:

tissues

Explanation:

Which property is shared by the cells of all living things?

Answers

Answer:

cells, growth, reproduction, adaptation, homeostasis, use of energy and response to the environment

The property that is shared by the cells of all living things the cells contain DNA composed of adenine, thymine, guanine, and cytosine. The correct option is A.

What are living things?

Living things are those things that are alive, The main property of a living thing can distinguish them from non-living things. These properties are growth and reproduction.

The living cells are those cells that made all the living matter. The living cell is composed of macromolecules. The cell is composed of DNA and different cell organelles.    

DNA is present in every living organism. It determines the genetic difference of every organism. It is the same in every cell.

Thus, the correct option is A. The cells contain DNA composed of adenine, thymine, guanine, and cytosine.

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The question is incomplete. Your most probably complete question is given below:

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.

What does the atomic number tell you about the element?
O number of protons
number of electrons
O number of neutrons
O total number of neutrons and protons

Answers

Answer:

These two numbers are fixed for an element. The mass number tells us the number (the sum of nucleons) of protons and neutrons in the nucleus of an atom. The atomic number (also known as the proton number) is the number of protons found in the nucleus of an atom. It is traditionally represented by the symbol Z.

Explanation:

(D) O total number of neutrons and protons

Which statement is true about water molecules?

A) The hydrogen atoms do not share electrons.
B) Water molecules cannot dissolve many substances.
C) The oxygen atom has a negative charge.
D) Water molecules move randomly around each other.

Answers

Answer: D

Explanation:

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