Answer:
Explanation:
The cell membrane (also known as the plasma membrane (PM) or cytoplasmic membrane, and historically referred to as the plasmalemma) is a biological membrane that separates the interior of all cells from the outside environment (the extracellular space) which protects the cell from its environment.[1][2] The cell membrane consists of a lipid bilayer, including cholesterols (a lipid component) that sit between phospholipids to maintain their fluidity at various temperatures. The membrane also contains membrane proteins, including integral proteins that go across the membrane serving as membrane transporters, and peripheral proteins that loosely attach to the outer (peripheral) side of the cell membrane, acting as enzymes shaping the cell.[3] The cell membrane controls the movement of substances in and out of cells and organelles. In this way, it is selectively permeable to ions and organic molecules.[4] In addition, cell membranes are involved in a variety of cellular processes such as cell adhesion, ion conductivity and cell signalling and serve as the attachment surface for several extracellular structures, including the cell wall, the carbohydrate layer called the glycocalyx, and the intracellular network of protein fibers called the cytoskeleton. In the field of synthetic biology, cell membranes can be artificially reassembled
Which statement accurately describes the Doppler effect?
Answer:
It indicates galaxy motion through light wavelengths. It indicates a galaxy moving toward Earth through red shift.
Explanation:
Answer: It’s A. It was used by Hubble to measure velocities of galaxies.
Explanation: It’s right on edge 2021
Humus is made of
A. weathered rock
B. fossils of ancient organisms
C. minerals
D. decaying plants and animals
What are the three categories of protists, and by which characteristics are they classified?
Answer:
Animal-like protists, Plant-like protists, and Fungi-like protists.
Organism's mode of reproduction, method of nutrition, and motility.
Fun Fact - Mushrooms and other fungi release an incredible amount of spores into the atmosphere every year, and contributing up to 50 million tonnes of particulates.
Carbon has 6 protons and 6 neutrons for an atomic mass of 12. But there are a some carbon atoms have 8
neutrons (instead of 6). These carbon atoms have a mass of 14 (instead of 12).
What term refers to the fact that in any type of atom some of those atoms have different numbers of neutrons?
Select one:
a. ions
O b. isotopes
O c. neutrons
Answer:
isotopes
Isoyopes are element having same atomic number but different atomic mass
If a population has no known predators and plenty of available resources, how might that population change
The elements potassium (K) and chlorine (CI) can form an ionic bond. Which of the following
statements correctly explains what occurs (in this ionic bonding)?
1.) As chlorine has 7 valence electrons, it tends to form bonds to gain one electron (to get a full valence shell of 8).On the other hand, potassium has one valence electron, so it tends to lose this electron to other atoms (and
become a cation)
2.) As chlorine has 7 valence electrons, it tends to form bonds to lose all 7 electrons. On the other hand,potassium has one valence electron, so it tends to gain 7 electrons (to get a full valence shell of 8).
3.) In this ionic bonding, potassium is the anion and chlorine is the cation.
4.) During the ionic bonding between potassium and chlorine, 8 electrons are shared between these 2 atoms.
Answer:
As chlorine has 7 valence electrons, it tends to form bonds to gain one electron (to get a full valence shell of 8).On the other hand, potassium has one valence electron, so it tends to lose this electron to other atoms (and
become a cation)
Which three items should you be able to find in or near the sink when your lab is finished ? a. Used lab equipment, specimens, paper towels b. Chemical waste, used gloves in the sink, used paper towels c. Soap, paper towels, scalpel blades used in your lab d. Soap, paper towels, sharps container
Answer:
I would say the answer is C.
Explanation:
Why do scientists classify organisms?
To more easily sequence their genetic material
To create scientific names that only scientists can learn
To have common names that everyone can remember
To organize them and speak about them accurately
Answer:
To organize them and speak about them accurately
Answer:
d
Explanation:
edge 2022
The fire extinguisher can ONLY be used by the teacher in an emergency
True
False
How is the structure of a unicellular organism different than the structure of a multicellular organisms? How does this affect function
consists of 3 types that work together to make proteins.
a. DNA
Ob.RNA
Ос. АТР
d. None are correct
Answer:
d none are correct
Explanation:
A scientist is observing a eukarotic cell and a prokaryotic cell. Which structure could she only observe in the eukaryotic cell? cytoplasm DNA ribosomes a nucleus
Answer:
D. a nucleus
Explanation:
In a phospolipid, the heads are
which
means
Answer:
A single phospholipid molecule has a phosphate group on one end, called the “head,” and two side-by-side chains of fatty acids that make up the lipid “tails. ” The phosphate group is negatively charged, making the head polar and hydrophilic, or “water loving.” The phosphate heads are thus attracted to the water
23. Which of the following explains nitrogen fixation. *
Answer:
Nitrogen fixation is the process by which atmospheric nitrogen is converted by either a nature or an industrial mean to a form of nitrogen such as ammonia.
Which of the following are the best sources of longer-term, stored energy for our bodies?
A. Monosaccharides
B. Disaccharides
C. Polysaccharides
The best source of longer-term energy storage for our bodies are Polysaccharides. Option C is correct.
Saccharides are sugar molecules. Among these molecules, some are shorter than others though all of them provide very similar functions to our bodies. Our bodies break down these sugars in order to obtain energy.
Due to the nature of everyday life, our bodies at times need a quick source of energy, as well as energy to be stored for later. This is where the difference in saccharides comes into play. Monosaccharides and Disaccharides are a source of quick energy, due to their being short molecules they can be broken with ease for quick use.
On the other hand, Polysaccharides are chains of sugar that can at times span into the thousands. These chains are later quickly broken up into monosaccharides at times of need. This characteristic makes them ideal for long-term storage of energy and is the reason that option C is correct.
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Which scientific discipline is correctly matched to a contribution to society? biology; theory of relativity geology; theory of continental drift ecology; conserving the environment astronomy; developing quantum mechanics
Answer:
B) geology; theory of continental drift
Explanation:
How can the enzyme activity be slowed down?
A. Increase temperature from 10*C to 20*C
B. Increase temperature from 20*C to 30*C
C. Decrease the temperature from 30*C to 20*C
Pls helpppp
Word Bank
protons neutrons
nucleus mass atom electron
CDD2E2 large small electron cloud electrons
small
more
electrical
same
А
consists of the following subatomic particles known as
a or create
and
The
of the atom
can be determined from the number of
and neutrons.
as done
have a positive charge, and
your work
have a negative charge. When an atom has the same number
of protons and electrons, then the atom does not have a
charge. An atom also has
that are located on the outside of
the
This area is known as the
The
Comento
mass of the
is smaller than the mass of the protons and
1. Nucleus
2.Proton
3. Neutron
4. Mass
5. Proton
6 Proton
7 Electron
8. Electrical
9. Electrons
10 Nucleus
11 Cloud
12 Electrons
13 Neutrons
Q) What does it mean by put you down? please, answere me
Answer: to criticize someone
Explanation:
Answer:
make you give up on something
why is carbon the most versatile element in living organisms?
Answer:
Because it has four electrons in its second orbital, which can accommodate eight, carbon can combine in many different ways, and it can form very large molecules. Carbon bonds are strong and can stay together in water. Carbon is such a versatile element that almost 10 million different carbon compounds exist.
In Sl measuring system what is the unit used for measuring length? *
Answer:
Gavuva
Units used in measuring long distances included the "Gavuva", "Yoduna", and "Usaba" (plurals Gavu and Yodun - a Yoduna was 4 Gavu) and the "hoo kiyana dura", which was the audible distance of a shout of 'hoo' by a person. Base of these system of measuring length was the human body.
Explanation:
Which of the following are true of cells? Select the following
( WILL MARK BRAINLIEST)
Please help fast!
_ cells can be categorized as prokaryotic and unicellular
_ All cells have a nucleus
_ All cells have a cytoplasm
_ Most cells have some type of genetic material
_ All cells are surrounded by a membrane
Answer:
1 False all cells can be categorised as prokaryotic and eukaryotic, and as multicellular and unicellular ( please note that these are two different categories)
2 False , not all cells have a proper well defined nucleus as prokaryotic cells contain nuclear material instead of a nucleus
3 True
4 True
2. Name two products that come from living things that are used to aid in human health and healing. Discuss where these products come from and what they do.
Answer: water and wart
Explanation: so we can live and walk
A person’s will be the same on Jupiter and Earth. A person’s will be greater on Jupiter than on Earth.
Answer:
Greater on Jupiter
Explanation:
Gravity depends on mass. Jupiter has more mass than Earth so its gravity is two and a half times greater. Therefore a person will weigh more on Jupiter.
Answer:
A person will be greater on Jupiter than Earth. The surface gravity is having is larger than Earth’s by roughly 2.4 times. So, if you weigh 100 pounds on Earth it would be 240 on Jupiter. Hopefully this helps! Feel free to mark this as brainliest!
Which statement is the first step of protein synthesis?(1 point) A ribosome attaches to the mRNA. DNA unzips between the base pairs. tRNA carries amino acids to the ribosome and attaches it to the mRNA strand. Amino acids are linked together with peptide bonds.
Answer:
DNA unzips between base pairs.
Explanation:
This is the first step of protein synthesis.
The first step of protein synthesis is attachment of mRNA to ribosomes. Option A is correct.
Protein synthesis:
It is known as translation. In this mRNA is translated in to the sequence of amino acids which ultimately form protein.
First mRNA attach to ribosome,tRNA bring amino acid to ribosomes and attach to mRNA.Amino acids bond together via peptide bond.Therefore, the first step of protein synthesis is attachment of mRNA to ribosomes.
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The lower the pH, the more / less the concentration of H+. The lower the pH, the more acidic/basic the solution.
The lower the pH, the more the concentration of H+. The lower the pH, the more basic the solution.
Which term names the science of classifying organisms?
Answer:
Taxonomy
Explanation:
It's the science of naming, classification if an organisms.
Can you help me please help i will give you a branlist and it science
Answer:
A.) protons and neutrons are in the nucleus
Answer and Explanation:
The subatomic particles that can be found in the center of a nucleus are protons and neutrons. So, A.
PLEASE HELP I NEED THIS ASAP!!!!!!!!!!!!!!!A leaf's cuticle A. is the main site of photosynthesis B. is spongy with many holes C. stores extra food D. prevents excessive evaporation
Answer:
te correct answer is D it prevents excessive evaporation
Explanation:
3
Select ALL correct answers: Which four of the following are the major types of macromolecules?
A Carbohydrates
B Chromosomes
c Lipids
D Lysosomes
<
E Nucleic acids
F Proteins
Answer:
Carbohydrates, lipids, proteins, and nucleic acids
Explanation: