Answers
The cell membrane is a thin, semi-permeable barrier that surrounds the cytoplasm of a cell.
1) There are two of movement across the cell membrane.
2) Diffusion refers to the movement of molecules randomly, the use of energy.
3) Active diffusion refers to the movement of molecules that dash the use of energy.
Explain Diffusion.
Diffusion is the process of molecules moving from an area of higher concentration to an area of lower concentration. This process occurs naturally and does not require the use of energy. Active diffusion, on the other hand, is the process of molecules moving from an area of higher concentration to an area of lower concentration, but it requires the use of energy. Active diffusion is usually facilitated by proteins embedded in the cell membrane that act as transporters. These transporters use energy to move molecules across the membrane, either into or out of the cell.
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Related Questions
The mechanical advantage of a machine is the number of times it a. multiplies the resistance force. b. multiplies the effort force. c. changes the direction of the effort force. d. changes the direction of the resistance force.
Answers
The force or speed of a machine is multiplied by its mechanical advantage. It is a figure (without units) that indicates how many times the apparatus multiplies a force (or speed). I. M. A. An ideal machine's mechanical advantage is the optimal mechanical advantage. Thus option A is correct.
What is the mechanical advantage of a machine?The ratio of load to effort is referred to as a machine's mechanical advantage. The efficiency of a machine is due to its mechanical advantage. Effort/Load = Mechanical Advantage. The mechanical advantage M A is equal to F 0 F I where F 0 is the output force and F I is the input force.
Therefore, multiplies the resistance force.
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What example would you use where leaf colour is used to identify different plants?
Answers
Answer:
An example of a plant whose leaf colour is used to identify it is the Silver Maple (Acer saccharinum). It is easily recognizable by its silvery-green leaves that have a whitish underside.
Explanation:
Three unlinked genetic loci, each with two alleles, determine the differences in sugar content (and therefore sweetness) in a diploid fruit. These genes contribute equally to sugar content, and their effects are additive. The least sweet variety (aabbcc) and the sweetest (AABBCC) are bred to produce an F1 generation. All the F1 plants produce fruits of intermediate sugar content. Phenotypes are listed below:
Plants Sugar content value, relative to sweetest plant
aabbcc 40%
AABBCC 100%
F1 70%
The fruit breeder's goal is to sample a variety of sugar contents. She breeds F1 plants with one another to produce F2 progeny. For each sugar content listed below, what is the probability that an F2 plant will produce fruit with that sugar content?
a. 70%.
b. 50%.
C. 80%.
d. 100%.
Answers
Answer:
This is actually a case of additive effect that means, it doesn't matter which allele is dominant which is recessive. Here what really matter is the total number of dominant and recessive alleles.
Offspring with_
All 6 dominant allele possess 100% sugar content.
any 5 dominant alleles possess 90% sugar content.
Any 4 dominant alleles possess 80% sugar content.
Any 3 dominant alleles possess 70% sugar content.
Any 2 dominant alleles possess 60% sugar content.
Any 1 dominant allele possess 50% sugar content.
Zero dominant allele (aabbcc) possess 40% sugar content.
Hence by this concept we can easily find the percentage of sugar content of any offspring.
what is the probability that an F2 plant will produce fruit with that sugar content?
a. 70% - 17/64. (all Blue coloured offsprings)
b. 50% - 5/64. (all green cloured offsprings)
c. 80% - 15/64. (all red coloured offsprings)
d. 100% - 1/64 (single purple colored AABBCC offspring).
Parents AABBCC X aabbcc
(100%) x (40%)
F1 AaBbCc
(70%)
F1 selfing AaBbCc x AaBbCc
Possible gametes of AaBbCc are ABC, ABc, AbC, Abc, aBC, aBc, abC, and abc.
Cross shown to draw a Punnett Sqaure-
During which process of glass manufacturing does the glass flatten out?
Melting the Wax
Washing, drying, and cutting
Annealing
Floating on tin
Answers
Answer:
Floating on tin
Mindy notices that her cat is having trouble urinating. The veterinarian suspects Mindy's cat has a urinary tract infection. Which body system does
this disease affect?
O A.
endocrine
OB. excretory
OC. respiratory
O D. circulatory
Answers
Answer:
The answer is B.excretory
Select the correct answer.
Which of these is an example of elemental carbon?
A. Diamond
B. Methane
C. Proteins
Answers
Answer: A Diamond
Explanation:
Because of it's crystalline like structure which is given by the traits exhibited by Diamond
which division of the nervous system collects information
Answers
Answer:
peripheral nervous system
Explanation:
the general flow of information is that the peripheral nervous system (PNS) takes in information through sensory neurons, then sends it to the central nervous system (CNS) to be processed
What is used to link small parts together so animals can move easily from one to another
Answers
examples for classification
Answers
Answer: Here are a few examples of classification:
Explanation:
Organizing a library's books by genre (e.g. fiction, non-fiction, children's books, etc.)
Sorting clothing items by size (e.g. small, medium, large)
Grouping types of food based on their ingredients or cooking methods (e.g. vegetarian, vegan, gluten-free)
9 ¿Cuál es la similitud entre una marea muerta y una marea de primavera?
Answers
Answer (in English):
Both Spring and Neap tides occur twice each month. Spring tides occur twice each lunar month all year not regarding what season it is. Neap tides, which also occur twice a month, occur when the sun and moon are at right angles of each other.
En Espanol:
Tanto las mareas vivas como las mareas muertas ocurren dos veces al mes. Las mareas de primavera ocurren dos veces cada mes lunar durante todo el año sin importar en qué estación se encuentre. Las mareas muertas, que también ocurren dos veces al mes, ocurren cuando el sol y la luna están en ángulos rectos entre sí.
Name 5 high energy substrates of metabolism in the order of their energy of hydrolysis
Answers
Answer:
A summary of metabolism. The unity of life. Biological energy exchanges. ...
The fragmentation of complex molecules. The catabolism of glucose. Glycolysis. ...
The combustion of food materials. The oxidation of molecular fragments. ...
The biosynthesis of cell components. The nature of biosynthesis. ...
Regulation of metabolism. Fine control.
Is acid rain a short-term or long-term environmental impact?
Answers
Answer:
long term effect
Explanation:
while the long term effect of acid rain are still being studied , it is well documented that the effects include harm to freshwater ecosystems and widespread decline in Forest health including damage to more than 70 percent of the red spruce forests in parts of New England
What two forms of matter do plants absorb from soil in order to grow?
Answers
Answer:
liquid (water)
geses like hydrogen,oxygen etc.,
Answer: Nutrients and Water
Explanation: Plants actually need Nutrients as well as water which consists of hydrogen and oxygen from the soil to grow. Plants also need sunlight and carbon dioxide to grow. They get carbon dioxide from the air as carbon helps plant to build new stem, leaves, stems, and roots. And the oxygen they get from the carbon dioxide is used to build glucose molecules.
Nutrients provide plants with the strength which helps them to grow big strong and healthy.
Water helps to move the food and nutrients to all over the different parts of the plant.
Which bone markings are responsible for making the protrusions of
the ankles, just above the feet?
Answers
Answer:
Lateral Malleolus and medial malleolus. The lateral malleolus is comprised of the talus and fibula. The medial malleolus is comprised of the talus and tibia.
Explanation:
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The fibula, tibia, and talus, the three bones that make up the ankle joint, can all break if you fall or get a hit to the area.
What are the functions of bone of ankles?The subtalar joint, which is located below the ankle joint, permits the foot to move from side to side.
The true ankle and subtalar joints are surrounded by a network of ligaments, which are strong, flexible tissues that connect the bones of the leg to those of the foot.
The responsibility for ensuring the body's balance and stability falls on the ankles. Ankles are positioned to absorb friction brought on by various bodily movements.
Therefore, The talus and fibula make up the lateral malleolus. The talus and tibia are part of the medial malleolus.
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acetty II
Science: 01/13: LS Recording
X
in wonder what did auggie hav X
S Student Email Students
Microsoft Office Home
uview.instructure.com/courses/5060/quizzes/119344
Venus is called Earth's sister planet because it is almost the
same mass and diameter as Earth.
Use the solar system diagram and the data table to
compare the gravitational attraction of the Sun on these
two planets.
This will be your CLAIM.
OUR SOLAR SYSTEM
ASTEROIDS
SGIOB013
MOON EARTH
URANUS
SATURN
PLUTO
JUPITER
COMETS
Our Solar System
Inner Planets
Distance from
Planet
the Sun (in
million miles)
Mercury 36
Diameter (in
miles)
Temperature Number of
(kelvin) Moon
3,031
100-700K
0
Venus
67.2
7.521
726K
0
Earth
93
7.926
1
260-310K
Mars
141.6
4,222
150-310K
2
Answers
Answer:
sorrrrrrrrry I neeeed points
yvcychvk gfubyjvgu nugcyg cykgcrffifrtv h
Explanation:
I can speak French, German, Spanish, English, and Arabic.. I love learning languages and travelling by my van and see the world
what are tassels of corn carb?
Answers
Answer:
The tassel is a male flower. Remember that the corn plant contains both male flowers and female flowers (corn silks) on the same plant. The tassel consists of many smaller parts that work together to release pollen. The tassel itself consists of a center spike with varying amounts of branches.
Explanation:
The corn-cobs have long tassels because they are involved in the production of a large number of pollen grains. The tassels in corn-cob helps to wave the wind, to trap pollen grains.
Answer:
Male flower
Explanation:
The ear shoots represents the female flowers.
Define bilateral symmetry and some special divisions that this type of body plan lends itself to. Give five examples of animals that are bilaterally symmetrical.
Answers
Answer:
Bilateral symmetry is a type of body plan in which the left and right sides of the body are mirror images of each other. This type of body plan lends itself to special divisions such as head, thorax, and abdomen. Examples of animals that are bilaterally symmetrical include humans, fish, frogs, butterflies, and worms.
Explanation:
Answer:
Explanation:
d
What process (mitosis or meiosis) do pollen and egg cells undergo?
Answers
I HOPE ITS HELP
I’m having trouble with the question can someone help
Answers
Answer:
ans: B
Explanation:
a grp of cell is tissue
a grp of tissue is organ
a grp of organs are organ system
a grp of oragan system is organism
why the birds fly on v-formation
Answers
Answer:
There are two reasons birds might fly in a V formation: It may make flight easier, or they're simply following the leader.
Therapeutic cloning in which embryonic stem cells are used raises concerns among some members of society. Which of these is usually the greatest concern?
Answers
!
Cells is the usually the greatest concern.
What is Cell?A cell is a collection of cytoplasm that is held together on the outside by a cell membrane. Cells are the smallest structural units of living matter and make up all living things.
They are typically tiny in size. Numerous organelles, including one or more nuclei, are present in most cells and perform a range of functions. Like a bacterium or yeast, some single cells are entire organisms. Others serve as specialized components of multicellular creatures like plants and animals.
In biology, a cell is a basic membrane-bound entity that houses the building blocks of life and is the basic building block of all other living entities. As in the case of bacteria or yeast, a single cell is frequently an entire organism unto itself.
Therefore, Cells is the usually the greatest concern.
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This part of the brain is responsible for essential survival functions such as breathing and heart rate.
cerebrum
corpus collosum
cerebellum
brain stem
Answers
Answer:
D. brain stem
Explanation:
i am 100% sure because I learned this last year! hope this helps!!
4. DNA profiles can be used for all the following except:
a. Paternity tests
b. Matching crime scene DNA to a suspect
c. Identifying Human Remains
d. Drug Testing
Answers
At 40°C, the temperature of sorghum could be lower than 40°C. True or False
Answers
Answer:
True.
Explanation:
The temperature of sorghum could be lower than 40°C when the surrounding temperature is 40°C because the sorghum plant absorb the sunlight and used it in the process of photosynthesis and the transpiration process regulate the body temperature of sorghum plant. Transpiration is the process in which water evaporated through a plant and its aerial parts, such as leaves, stems and flowers. This process removes extra heat with water through stomata so we can say that the temperature of sorghum is lower than 40°C.
Which cells in your body undergo cellular respiration.
Answers
Answer:
it is a
aerobic respiration
Many years ago, scientists
considered sponges to belong to Kingdom Plantae. What sort of evidence convinced them that sponges belonged to Kingdom Animalia?
Answers
HELP LIMITED TIME!!!!!!!!!!!!!!!
Changing the Earth's climate results in:
Select one:
1, Rising sea levels
2, Irregular weather patterns
3, All of these
4, Melting ice caps
Answers
Answer:
All of these
Explanation:
Changing the Earth's climate can have a number of impacts on the planet and its inhabitants. One potential effect is rising sea levels, as a warmer climate can cause the polar ice caps to melt, increasing the amount of water in the oceans. This can lead to flooding and other coastal hazards. Another effect of climate change is irregular weather patterns, as a changing climate can alter the frequency and intensity of storms, droughts, and other extreme weather events. This can have significant impacts on agriculture, natural systems, and human communities. Finally, changing the Earth's climate can also result in melting ice caps, as rising temperatures can cause the polar ice caps to melt and contribute to rising sea levels. Overall, climate change can have a range of impacts on the Earth and its inhabitants, and understanding these impacts is an important part of addressing this global challenge.
What would happen in an ecosystem without primary consumers
Answers
The structure that surrounds an animal cell is the cell wall.
True
False
Answers
Part B
The minerals that make up rocks give them their unique properties. Based on your results, do you think that any of your three rocks have the exact same mineral make up, or are they three different types of rock? Explain your answer.
Answers
Rocks doesn't have the exact same mineral make up as they are made of different composition.
How to illustrate the information?A naturally occurring collection of minerals and/or mineraloids is called rock. There is no known chemical makeup of rocks.
Minerals are naturally occurring substances with unique atomic structures, compositions, and chemical and physical properties. Typically, two or more minerals are mixed together through geological processes to form rocks.
Because of their minerals, formation processes, and processes that have affected the rocks since they were formed, various rocks have different properties.
Rocks are composed of minerals and have a wide range of traits or properties. When a rock is ground into a powder, it takes on the color of streak, and a rock's luster indicates how shiny it is. Other characteristics include size, shape, texture, and hardness.
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