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MULTIPLE CHOICE QUESTION
Pick all the correct answers
unsaturated fatty acids have the maximum
amount of hydrogens
unsaturated fatty acids have double bonds
saturated fatty acids have double bonds
Trans fats are the healthiest fats to eat
because they are the only ones found in
nature
saturated fatty acids have the maximum
amount of hydrogens
Trans fats are the worst fats to eat because
they are not found in nature
Answer: These are all of the correct answers
Unsaturated fatty acids have double bonds.Saturated fatty acids have the maximum amount of hydrogensTrans fats are the worst fats to eat because they are not found in nature.Explanation:
1.
How does water behave when it freezes?
Answer:
During freezing, water molecules lose energy and do not vibrate or move around as vigorously. This allows more stable hydrogen-bonds to form between water molecules, as there is less energy to break the bonds...Thus water expands as it freezes, and ice floats atop water.
Explanation:
Describe one physical property and one chemical property of sodium that ywe observed
Answer:
It's a soft metal, reactive and with a low melting point, with a relative density of 0,97 at 20ºC (68ºF). From the commercial point of view, sodium is the most important of all the alkaline metals. Sodium reacts quickly with water, and also with snow and ice, to produce sodium hydroxide and hydrogen.
Explanation:
help plzzzzzzzzz asap
Answer:
Vestigial structures: are various cells, tissues, and organs in a body which no longer serve a function. (Ex: human appendix, the pelvic bone of a snake, and the wings of flightless birds)
Homologous Structures: Homologous structures are organs or skeletal elements of animals and organisms that, by virtue of their similarity, suggest their connection to a common ancestor (Ex: humerus, radius, and ulna, just as the arms of the other animals included in the figure.
Embryological Similarities: The study of one type of evidence of evolution is called embryology, the study of embryos. (Ex: fish embryos and human embryos both have gill slits)
Fossil Record: history of life as documented by fossils, the remains or imprints of organisms from earlier geological periods preserved in sedimentary rock. (Ex: bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood, oil, coal, and DNA remnants)
Genetic (DNA) Similarities: a self-replicating material that is present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information. (Ex: basic materials in the chromosomes of the human cell.)
Divergent Evolution: is the accumulation of differences between closely related populations within a species, leading to speciation. (Ex: Darwin's finches are a clear and famous)
The protein, lipid, and carbohydrate compositions of the cytoplasmic and extracellular sides of membranes are different from one another. Why is this the case? (3 points)
a) Some membrane components are synthesized outside of the cell, while others are synthesized in the cytosol.
b) The two sides of a cell membrane face different environments and carry out different functions.
c) The molecular composition of the inner and outer layers of the cell membrane is determined by genes.
d) Proteins only function on the cytoplasmic side of the cell membrane, which results in asymmetry across the membrane.
Answer:
The protein, lipid, and carbohydrate compositions of the cytoplasmic and extracellular sides of membranes are different from one another , this happens because the two sides of a cell membrane face different environments and carry out different functions.
Explanation:
PROTEINS , LIPID AND CARBOHYDRATES , all are the components of the plasma membrane , located at different sites .
PROTEINS -: The main component of plasma membranes is proteins. Two key categories of membrane proteins are available: integral and peripheral. As their name implies, integral membrane proteins are incorporated into the membrane: they have at least one hydrophobic region that anchors them to the phospholipid bilayer's hydrophobic center. Others just stick partway through the membrane, while others extend from one side of the membrane to the other and on either side are exposed.
On the outside and inside surfaces of membranes, peripheral membrane proteins are found which are bound either to integral proteins or to phospholipids. Peripheral membrane proteins do not stick into the hydrophobic center of the membrane as opposed to integral membrane proteins, and appear to be more loosely bound.
LIPID -: Phospholipids, arranged in a bilayer, make up the plasma membrane 's essential cloth. Since they are amphipathic, they are well-suited for this function, meaning they have both hydrophilic and hydrophobic regions.
The hydrophilic or "water-loving" component of a phospholipid is its head, which includes a phosphate group that is negatively charged, as well as an additional small group that can also be charged or polar.
Its long, nonpolar fatty acid tails make up the hydrophobic, or "water-fearing," portion of a phospholipid. The tails of fatty acids can interact easily with other non-polar molecules, but interact poorly with water.
CARBOHYDRATES -: The main component of plasma membranes is carbohydrates. In general, they are located on the outer surface of the cells and are either bound to proteins (glycoproteins forming) or to lipids (glycolipids forming). These chains of carbohydrates can consist of 2-60 units of monosaccharide and can either be straight or branched.
Hence , the correct option is B.
In addition to traditional coursework, most microbiology programs require which of the following?
O independent studies
O professional internship
O laboratory experience
O group projects
Answer:
laboratory experience
Explanation:
Got It right on test
The answer IS:
laboratory experienceIn an investigation to determine a factor that affects the growth of rats, a student exposed 100 rats of the same age and species to identical conditions, except for the amount of living space and the amount of food each rat received. Each day the student measured and recorded the weight of each rat. State one major error that the student made in performing this
Answer:
Violating 'Ceteris Paribus' {Other factors constant} assumption, as both food & space are varied (simultaneously)
Explanation:
Weight Growth is the dependent (effected) variable in this case. And, independent (causal) variables are food amount are living space respectively.
However particular independent factor's (food or living space) impact on dependent variable ie weight growth : can be determined only by - examining individual variable (food or living space) impact on weight growth. So, either of the two variables should be varied, & not both should be varied simultaneously.
This would imply depiction of each factor's clearer individual impact on the dependent factor.
What must a single-celled organism do before it can reproduce
Answer:
In order to reproduce, an organism must make a copy of this material, which is passed on to its offspring. Some single-celled organisms reproduce by a process called In binary fission, material from one cell separates into two cells.
Explanation:
The INDEPENDENT VARIABLE:
A. Is the participant
B. Is what the scientists manipulate in the experiment
C. The component that is measured. D. The results of the experiment
Answer:
B. Is what the scientists manipulate in the experiment.
Explanation:
The Independent variable is not dependent, or doesn't rely, on another variable in the experiment. So, it would make the most sense that they would manipulate the Independent so that they can watch and see how the dependent variable reacts to the manipulation, or the change, in the independent variable.
what is genetic ? can you plz give the definitoin
Answer:
Genetics is someone that is related to someone else by genes or heredity
Explanation
One way that cells maintain homeostasis is by controlling the movement of substances across the cell membrane.
Answer:
True
Explanation:
One way that a cell maintains homeostasis is by controlling the movement of substances across the cell membrane. The lipid bilayer is selectively permeable to small, nonpolar substances. Proteins in the cell membrane include cell-surface markers, receptor proteins, enzymes, and transport proteins.
The Gulf Stream is a surface current in the Atlantic Ocean that flows northward from the Caribbean Sea and the Gulf of Mexico. It feeds another current that reaches northern Europe. Which of these events would cause the greatest changes to the path and strength of the Gulf Stream?(please help)
A. a strong earthquake that occurs on the floor of the Atlantic Ocean
B. an increase in the volume of river water that flows into the Gulf of Mexico
C. a reversal of direction in the prevailing winds over the Atlantic Ocean
D. a slight increase in the salinity of the Atlantic Ocean
Answer:
It constitutes the northeastward extension of the Gulf Stream; the latter issues from the Gulf of Mexico and gradually emerges as the North Atlantic Current in mid-ocean. It is composed of several broad currents with speeds of about 0.2 knots, as compared with the Gulf Stream's rather concentrated flow at 1 to 6 knots.
Explanation:
Answer:
B. an increase in the volume of river water that flows into the Gulf of Mexico
The picture below shows a stained gel. The gel was made using DNA
samples obtained from individual fish. Lane 8 is the positive control for a
species of carp. Lanes 1 through 7 show DNA from individual fish. Which lane
represents a fish of the same species as the positive control (lane 8)?
In this case, Lines 5, 4 and 1 represent the same species as Line 8 in the electrophoresis gel.
What is an electrophoresis gel?An electrophoresis gel is a device used to separate molecules according to their charge and molecular weight.
Electrophoresis can be used to identify DNA samples due they may have PCR bands may have different sizes.
In conclusion, in this case, Lines 5, 4 and 1 represent the same species as Line 8 in the electrophoresis gel.
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Answer:
lane 1
Explanation:
What are the pros and cons of Gene Therapy?
i don’t know how to do the chart
Answer:
??????
Explanation:
Optic nerves travel through the
to ensure that visual signals go to each hemisphere of the brain.
A. optic channel
B. occipital lobe
C. optic chiasm
D. thalamus
Answer:
The answer is C. Optic Chiasm
Explanation:
pls Mark Brainliest
Answer:
optic chiasm
Explanation:
C on edge.
What causes sea floor to spread apart at mid ocean ridges?
Answer:
Seafloor spreading occurs at divergent plate boundaries. As tectonic plates slowly move away from each other, heat from the mantle's convection currents makes the crust more plastic and less dense. The less-dense material rises, often forming a mountain or elevated area of the seafloor.
Analyze the diagram below. Which of the terms best describes it?
Answer:
disaccharides
Explanation:
they are formed by linking 2 monosaccharides through condensation
monosaccharides are simple sugars or glucose
Disaccharides are those types of carbohydrates that, when hydrolyzed by acids or enzymes, produce two molecules of monosaccharides that may or may not be identical. Thus, option A is correct.
What is important in formation of disaccharides?Mono- and disaccharides, sometimes known as sugars, make up a significant portion of the carbohydrates included in food.
Disaccharides function similarly to other carbohydrates as a source of energy for the body.
When we consume foods containing disaccharides, our systems convert them into monosaccharides, or simple sugars, for absorption in the small intestine.
This condensation process is also referred to as a dehydration reaction, since a water molecule is released during this process.
Therefore, disaccharide is formed from monomeric subunits.
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How could you stop a mixture of sugar, water, and yeast fermenting?
Heat is released or given off during an (blank) process.
Fill in the blank:
A) endothermic
B) exothermic
Carbon monoxide has ____ of oxygen.
zero atoms
one atom
two atoms
Answer:
carbon monoxide (CO)
1 oxygen atom
Calcium and phosphate are important parts of the bone matrix because they:
A provide flexibility to bone.
B promote the formation of cartilage.
C provide strength and durability to bone.
D produce blood cells in the bone marrow.
Answer: it’s c
Explanation:
Answer: provide strength and durability to bone.
Explanation:
PLEASE HELP IT IS DUE TODAY!
Answer:
niceee
Explanation:
Answer:
IT'S A OR C
Explanation:
im pretty sure its c though because those are chromosomes for a human
Which statement best compares pseudopods in sarcodina and flagella in dinoflagellates?
OA. Both pseudopods and flagella are used for reproduction, but only flagella are used for movement.
OB. Pseudopods ang whip-like structures, while flagella are flat structures involved in photosynthesis.
OC. Both pseudopods and flagella are used for movement, but only pseudopods are used to engulf food.
OD
Pseudopods are permanent projections from a cell, while flagella can be retracted into the cell.
Answer:
A is the answer your welcome
A forensic scientist is often called upon to testify about...
A.a suspect's moral character
B.physical evidence related to a crime
C.the reliability of witness testimony
D.the past history of the suspect
Answer: B
Explanation:
Forensic scientists are the ones who are gathering the details of the scene a building evidence for the case.
Which process does not release energy?
a photosynthesis
b lactic acid fermentation
c cell respiration
d alcoholic fermentation
How many membrane layers cover the nucleus?
Answer:
2 membrane layers cover up the nucleus
Answer:
two lipid bilayer
Explanation:
the nucleus membrane is made up of two lipid bilayer
How many of their boys also have dimples?
Answer:
it's genetic
Explanation:
Baby cheeks are so sweet, pudgy, and pinchable. Pair those with adorable dimples and giggles and you have a baby akin to a kewpie doll.
Dimples are often seen as a desirable characteristic because they light up a face, even through smudged, terrible-two tears. They definitely seem to provide a little more personality!
But how do you know if your baby will have dimples? It’s a question that many soon-to-be parents ask themselves. The answer lies within miniscule, curly things called genes.
What is the name of the CI vertebra?
Answer:
The name is Atlas.
Answer: atlas
Explanation:
The C1 vertebrae is known as the atlas
what are the main pros of cloning
Answer:
Pros of Cloning
1. Help to Eliminate Defective/Weak Genes.
2. It is a Logical Step in Reproductive Technology.
3. It’s an Invention that can Change the Globe in a Positive Way.
4. Improve Recovery in Traumatic Injuries.
5. Bring out a New and Genetically modified Genes.
6. Eliminate Infertility.
7. Cures Disorders.
Explanation:
Albison Energy
Sources:
Blackall LL, Burrell PC, Gwilliam H, Bradford D, Bond PL, Hugenholtz P. The use of 16S rDNA clone libraries to describe the microbial diversity of activated sludge communities. Water Science and Technology. 1998 Jan 1;37(4-5):451-4.
LaBar M. The pros and cons of human cloning. Thought: Fordham University Quarterly. 1984 Aug 1;59(3):319-33.
Cerf NJ, Grangier P. From quantum cloning to quantum key distribution with continuous variables: a review. JOSA B. 2007 Feb 1;24(2):324-34.