Answer:
Different organelles make close contacts with each other via MCSs. These contact sites are generally thought to form via membrane proteins that act as tethers on the interacting organelles . Often these tethers are part of large multiprotein complexes.
The endomembrane system (endo = within) is a group of membranes and organelles in eukaryotic cells that work together to modify, package, and transport lipids and proteins. It includes the nuclear envelope, lysosomes, vesicles, endoplasmic reticulum and the Golgi apparatus, which we will cover shortly.
There are two types of proteins: structural proteins and enzymes. Cell organelles must work together to carry out protein synthesis, utilize proteins within the cell, and transport them out of the cell.
Explanation:
11.A tomato plant has 12 chromosomes in each egg/sperm cell. How many chromosomes do each
of their somatic cells have?
Answer:
12 chromosomes
Explanation:
hope its attachments
Which of these is the process during which some of a plant’s cells become root cells, and other cells form the plant’s stem? Choose the correct answer.
meiosis
meiosis
mutation
mutation
homeostasis
homeostasis
differentiation
Explanation:
Itt is the process by which cells become different cells such root or stem cells. This is found in the stem cell and all plant cells have stem cells property.
During the differentiation, the cells change in the cell morphology, membrane potential , and metabolic activity
Therefore, Differentiation is the process by which some of a plants cells become root cells and other become stem cells.
What is the role of transport proteins in the cell membrane
Explanation:
Membrane transport proteins fulfill an essential function in every living cell by catalyzing the translocation of solutes, including ions, neurotransmitters, and numerous drugs across biological membranes
Explain why some parts of a plant can act as both a source and a sink.
Answer:
Some organs are both a source and sink. Leaves are sinks when growing and sources when photosynthesizing. Rhizomes are sinks when growing but become sources in the spring when they provide energy for new growth.
hope this helps ☆☆☆
The leaves and rhizomes of the plant are found to act both as a source and a sink when growing and when they perform photosynthesis.
What are source and sink in plant?
Source organs are the organs which provide a net uptake of resources while sink organs are the organs which have a net drawdown of resources in the plant. Molecular mechanisms which are responsible for the regulation of the relationship between the sources and sinks. These molecular mechanisms include both the carbon and nitrogen-containing metabolites, plant hormones and genes.
Some organs in the plant are found to act both as a source and a sink. Leaves of the plant are sinks when growing and as source when photosynthesizing in the presence of sunlight during daytime. Rhizomes are the sinks when growing however they become sources in the spring season when they provide energy for the new growth.
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Identify the tree main parts of the model, and the four spheres that are used to organise concepts in two of these parts?
Answer:
Lithosphere, hydrosphere, atmosphere
Explanation:
The name of each of these sphere come from the Greek word that describe what they are made of ,Geo, for ground, hydro for water,bio
which type of connective tissue has a mineralized different matrix?
Answer:
Bone
Explanation:
23. Where are earthquakes most likely to
occur?
A where Earth's tectonic plates are
moving together
B where
magma cools slowly beneath
Earth's surface
C where Earth's lithosphere is in
constant, slow motion
D where Earth's seafloor is spreading
into deep ocean trenches
Answer:
D where Earth's seafloor is spreading into deep ocean trenches
Explanation:
Over 80 per cent of large earthquakes occur around the edges of the Pacific Ocean, an area known as the 'Ring of Fire'; this where the Pacific plate is being subducted beneath the surrounding plates. The Ring of Fire is the most seismically and volcanically active zone in the world.what is an accessory organ of the plant used in sexual reproduction
ribosomes contain three discrete sites where trnas bind and the polypeptide is synthesized. these are called site (a site), site (p site), and site (e site).
Answer:
Each ribosomal subunit has three binding sites for tRNA: designated the A (aminoacyl) site, which accepts the incoming aminoacylated tRNA; P (peptidyl) site, which holds the tRNA with the nascent peptide chain; and E (exit) site, which holds the
Explanation:
Each ribosomal subunit has three binding sites for tRNA: designated the A (aminoacyl) site, which accepts the incoming aminoacylated tRNA; P (peptidyl) site, which holds the tRNA with the nascent peptide chain; and E (exit) site, which holds the
what types of solute molecules may be moved by facilitated diffiusion
Explanation:
Facilitated diffusion therefore allows polar and charged molecules, such as carbohydrates, amino acids, nucleosides, and ions, to cross the plasma membrane. Two classes of proteins that mediate facilitated diffusion are generally distinguished: carrier proteins and channel proteins.
what is the role of the beaver in its ecosystems?
a) it is a foundation species and the main source of food for the natural predators of its ecosystems.
b) it is a keystone species that modifies its natural environment by damming streams to form wetlands
c) it is a dominant species, as it has the greatest number of individuals among all the mammalian species of its ecosystem
d) it is an endangered species as it has the least number of individuals among all the mammalian species of its ecosystem
Answer:
B)
Explanation:
Which number label represents cellular respiration occurs and ATP is produced? 1 2 3 6
Structure 3 in the diagram represents where cellular respiration occurs and
ATP is produced.
The structure is known as the mitochondrion and it has an oval shape in
which series of reactions takes place to produce energy needed by the cells
of organisms.
The mitochondrion is regarded as the power house of the cell because
cellular respiration takes place which produces ATP. The ATP formed is the
usable form of energy by cells to preform their daily activities and for
optimal functioning.
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Answer:
No 3 The mitocondrion
Explanation:
what are all the decomposers in the ocean?
Answer:
crustaceans and mollusks, bacteria, fungi, sea cucumbers, starfish, sea urchins, and other kinds of marine worms.
Explanation:
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Metal Mass (9) Volume (cm) Gold 77.28 4.00 Platinum 64.35 3.00 Tungsten 96.75 5.00 Silver 63.00 6.00 29) A jeweler has selected a metal with a density of 19.35 g/cm' to make a ring. Which of the metals was selected?
A) Gold
B) Plantinum
C) Sliver
D) Tungsten
STUDY TIP 2
Find a comfortable place to study with good lighting and few distractions. Avoid studying in bed, as it will be too tempting to take a nap.
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Answer:
thanks for the tip very important
where in the bone are red blood cells made?
periosteum
compact bone
spongy bone
joint capsule
Answer:
red blood cells or formed in the red bone marrow of bones
15. Which of the following is controlled by multiple genes and influenced by the environment? *
Codominant traits
Single gene traits
Polygenic traits
Incomplete dominant traits
The fence around the school's garden is 22.6 m. If the garden is 7.5 m long, how wide is the garden? *
Answer:
Explanation:
22.6 is the perimeter because the question has the key words "fence" and "around" that let us know.
Perimeter equation is L+L+W+W
We know 7.5 is the length (could also be the width, it doesn't matter the order)
The length appears two times, so lets plug it in-
22.6= 7.5+7.5+W+W , Now you want to combine the like terms so.. 7.5+7.5=15
22.6= 15+W+W
Now subtract the 15 from 22.6
7.6= W+W , there are two W's left so divide 7.6 by 2
7.6/2= 3.8
It is 3.8 m wide
Name one protein within the cell membrane and describe its function.
question is in picture
Answer:
it can show a population pyramid They also show the number of dependents (children and, sometimes, elderly people) and general structure of the population at any given moment. it compares and contrast the age of th female and male where it typically forms the shape of a pyramid when the population is growing which can give you a general idea on both genders it can help see who (female or male) are the most type in that areaCredit:
https://brainly.com/question/23995769In some cases, the spinal cord and associated structures of a newborn may be exposed. This abnormality is called a
Answer:
Spina bifida
Explanation:
Myelomeningocele is a severe type of spina bifida in which the membranes and the spinal nerves protrude at birth, forming a sac on the baby's back. The exposed nervous system may become infected, so prompt surgery is needed after birth
5.5% of the _____ is covered in ice
Answer:
5.5% of the earth is covered in ice?
brainliest please!
What factors could decrease the rate of photosynthesis in a plant?
Answer: light intensity, carbon dioxide concentration and temperature i think- maybe
Explanation:
Without enough light, a plant cannot photosynthesise very quickly, even if there is plenty of water and carbon dioxide, Increasing the light intensity will boost the rate of photosynthesis and for carbon dioxide even if there is plenty of light, the plant cant photosynthesise if there is insufficient carbon dioxide. and why temperature is because if it gets too cold the rate of photosynthesis will decrease, Plants cant photosynthesise if it gets too hot either
citer le type de mémoire perturbée par le T H C c,est un dm note reponse.
hindi ko po gets sasagutan po ba yan
Can someone plz help me? :(
Answer:
Probably A or B
Explanation:
As a metal, lithium will lose electrons to have a ful valence shell. How manyvalence electrons will it lose to have full valence shell? What will be the charge of the lithium ion?
please help me
Answer:
It will lose 1 electron
Its charge will be 1+, or simply (+)
Explanation:
Lithium it's located in the group one of the periodic table, the Alkali, and by rule, all Alkali are always gonna loose one electron during a chemical reaction to form a positive ion.
The charge is explained by the fact that, if lithium looses one electron, then it wi have less number of electrons than protons, meaning that, if there's a higher number of protons (positive charge), then the charge will be positive. And since the atom loosed one electron then its charge will be 1+
For example, during a chemical reaction calcium is always gonna loose 2 electrons, so its charge's gonna be Ca2+
Kinetic energy is described as Question 1 options: Movement Destroyed energy Stored energy Created energy
i am giving 100 points for this question
IF YOU DONT KNOW THE ANSWER OR NOT POSITIVE PLEASE DO NOT ANSWER.
Answer:
Movement
Explanation:
im pretty sure its movement, srry if wrong
Enlist any five properties of metals.f
our points
Answer:
1. Hard
2. Malleable
3. Ductile
4. Good electrical conductor
5. High melting point
through _____ large molecules are formed
Answer:
Macromolecules
Explanation:
because they combine with covalent bonds
A model cell with damaged DNA was created to explain the importance of checkpoints in a cell cycle. The G2 checkpoint accidentally failed to work during experimentation. What do you think is the likely consequence of this failure?.
Answer: the consequenc of this failure is The cell continued to divide uncontrollably to create more damaged cells Which can lead to deadly diseases like cancer, breast cancer and many more
If the G2 checkpoint accidentally failed, then the cell will enter into division. The likely consequence of this failure is that the cell proliferates in an uncontrolled manner.
The cell cycle is controlled by checkpoints that regulate the progression through different phases of the cell cycle.
The G2 checkpoint acts to prevent the entry in mitosis of cells that have damages in its genetic material (DNA) in order to repair it.
When the cell undergoes failures in the G2 checkpoint control, the cell divides in an uncontrollable manner and thus generate groups of damaged cells (e.g., a tumor).
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