Answer:
Flat discs inside chloroplasts that are arranged in stacks are called (2) __thylakoids_. (3) __Pigments__ are light-absorbing substances that are inside chloroplasts. They absorb light of different (4) __wavelenghs__. The green pigment in plants that is essential for photosynthesis is (5) __Chlorophyll __. Light energy absorbed by this pigment excites (6) ____electrons___. They are transferred to a(n) (7) _Electron Carrier_. Then they move down an electron transport chain.
Explanation:
The chloroplasts are limited by an outer membrane and an inner one. In the middle of the two membranes, there is a space left called intermembrane space. In the interior of the inner membrane, there is another space known as the stroma. Within the stroma, there is the third system of membranes, known as thylakoids. They are disk-shaped structures, limited by a membrane, and in their interior, there is a space named thylakoid space.
Thylakoids are arranged as piles, receiving the name of grana. Grana connect to each other by a longer thylakoid membrane. The photosynthetic pigments are placed in the thylakoids, where it occurs light-dependent reactions. These molecules are in charge of light absorption. The most common pigment is chlorophyll, which provides the typical green color of plants. When sunlight reaches the pigments, electrons get excited and move along the electron transport chain, places in the thylakoid membrane. This process occurs during photosynthesis, while new electrons provided by water molecules replace the excited ones. The final products are oxygen, ATP, and NADPH.
In the stroma, it takes a place the Calvin cycle.
Which of the following is an example of a tissue?
A. Lung
B. Digestive tract
C. Bone
D. Heart
Answer:
C. Bone
Explanation:
because it is made up cells.
The other objectives are organs.
DNA is often compared to a twisted ladder. In this analogy, what forms the
rungs of the DNA ladder?
A. Pairs of nitrogenous bases
B. Pairs of nucleotides
C. Pairs of sugars
D. Pairs of phosphate groups
The pairs of nucleotides result in the twisting of strands. Therefore, option "B" is correct.
What is nucleotide base pairing?There are five types of nucleotide bases adenine, cytosine, guanine, thymidine, and uracil. These divide into two classes of nucleotides pyrimidine and purine nucleotide bases. Pyrimidines are uracil, thymine, and cytosine whereas adenine and guanine are purine.
In RNA, adenine, cytosine, and guanine are present but thymine is replaced by uracil. Pyrimidine always binds with the purines through hydrogen bonding. Adenine binds with thymine. Cytosine binds with guanine. But when adenine pairs with uracil in RNA.
Therefore, nucleotide base pairing determines the twisting of the DNA strand depending on the type of nucleotide present.
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Which is an endocrine function?
Answer:
Explanation:
The endocrine system is a messenger system comprising feedback loops of the hormones released by internal glands of an organism directly into the circulatory system, regulating distant target organs. In vertebrates, the hypothalamus is the neural control center for all endocrine systems. In humans, the major endocrine glands are the thyroid gland and the adrenal glands. The study of the endocrine system and its disorders is known as endocrinology.
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Cell Processes and Transport: Mastery Test
4
Select the correct answer from each drop-down menu.
Sodium and potassium lons are essential for muscle contractions of the heart. The ions are transported using a pump, which obtains
energy by the breaking of
. This action requires the expense of energy. So, sodium and potassium ions are transported using
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Next
Answer:
Cell
Explanation:
Sodium and potassium ions are essential for muscle contractions of the heart, and the ions are transported using a pump, which obtains energy from the breaking of ATP molecules, this action requires the expenditure of energy, so sodium and potassium ions are transported using active transport.
What is muscle contraction?Sodium and potassium ions play a crucial role in muscle contractions, including those of the heart, and to maintain the appropriate concentration of these ions inside and outside the cell, the body uses a protein pump called the sodium-potassium pump, which is an active pump. It requires energy to move substances across cell membranes; the pump uses the energy released by the breakdown of ATP molecules to change its shape, transport the sodium and potassium ions across the membrane, and regulate the muscle contraction.
Hence, the ions are transported using a pump, which obtains energy from the breaking of ATP molecules, this action requires the expenditure of energy, so sodium and potassium ions are transported using active transport.
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question is incomplete, complete question is below
Select the correct answer from each drop-down menu.
Sodium and potassium ions are essential for muscle contractions of the heart. The ions are transported using a pump, which obtains energy by the breaking of ----. This action requires the expense of energy. So, sodium and potassium ions are transported using---
ATP,
active transport.
5. How are populations, ecosystems, and communities related? (1 point)
O A community consists of an ecosystem and its physical environment, and an ecosystem is made up of
many different populations of organisms.
O A population consists of a community of organisms and its physical environment, and a community is
made up of many different ecosystems.
O An ecosystem consists of a community of organisms and its physical environment, and a community is
made up of many different populations of organisms.
O An ecosystem consists of a population of organisms and its physical environment, and a population is
made up of many different communities of organisms.
Answer:
an ecosystem consists of a population of organism and it's physical environment,and a population is made up many different communities of organism.
How do u tell if a rat snake is a female or male
Answer:
Well Males have longer tails than females do.
Explanation:
Answer:
well thanks for the point
Which describes a way that carbon is pulled out of the atmosphere?
O A. When fossil fuels are used
O B. When oil is burned
C. When trees use photosynthesis
O D. When animals exhale
Answer:
C. When trees use photosynthesis
Explanation:
This is because trees and plants need carbon to survive.
Can you help me, please?
The answer which you selected "transcription and translation" is correct
Read the question and type out the
mRNA codon that would result. (make
sure to capitalize)
Answer: Threonine or Thr.
Explanation:
DNA or deoxyribonucleic acid is a molecule containing genetic information that is passed on from one generation to the next. This molecule is transcribed into another molecule called messenger ribonucleic acid or messenger RNA which is used for protein synthesis in the ribosomes. That is, the one that determines the order in which the amino acids of a protein will be joined. Both RNA and DNA have monomers called nucleotides, composed of a sugar molecule (ribose in RNA or deoxyribose in DNA) linked to a phosphate group and a nitrogenous base. The nitrogenous bases can be adenine (A), thymine (T), guanine (G), cytosine (C) and uracil (U) in RNA replacing T.
A codon is a sequence of three nucleotides found in RNA that codes an amino acid. The genetic code describes the relationship between the sequence of DNA bases in a gene and the corresponding sequence of the protein it encodes. Also note that there is base complementarity between DNA and RNA, that is why DNA is used to make RNA. Complementarity is the ability of the nitrogenous bases in the nucleic acid molecule to combine with their complement, Adenine (A) with Thymine (T) in DNA and A with U in RNA; and Cytosine (C) with Guanine (G) joined by hydrogen bridges.
In the figure, a RNA molecule is shown with the bases, showing which amino acid is code by each codon. In the case where there is a mutation and the G is replaced by an A in the codon coding for alanine, the codon would be ACA coding for threonine or Thr.
Please help I’ll give brainliest
Answer:
53
Explanation: You do 36 + 17 = 53 neutrons
Answer: The answer is 19
Which is an important source of carbon monoxide emissions that contributes to the greenhouse effect?
landfills
wetlands
vehicles
greenhouses
help pls *serious ppl only*
Answer:
6 for white parents, and 6 for black parents.
Synthetic fiber has many characteristics that makes it more attractive than natural fiber for making clothing. Which of the following choices are true
1. Synthetic fiber has greater shape retention
2. Synthetic fiber often costs less
3. ALL options are correct
4. Synthetic fiber has greater durability
5. Synthetic fiber is more prone to heat damage in the wash than natural fibers
Answer:
C
Explanation:
Answer:
C
Explanation:
Water seeps inside cracks in a boulder and freezes. Over time, the cracks expand and the boulder breaks in half. What process caused this change in the rock?
Answer:
it may be erosion, I'm not quite sure but it could possibly be a form of erosion.
PLEASE HELP ITS DUE TOMORROW
based on Mr. Kaku's assertion that knowing what the stars are made of is as easy as running starlight through a prism, use the CER method to explain the use of light to determine composition of a star in detail.
Answer:
good luck on that one... ........... ..
Define the term:
1.Respiration
2.Transportation
Answer:
1 respiration the chemical process whereby energy rich molecules, example glucose,is chemically broken down to release energy.
Answer:
breathing in and out
Explanation:
the action or process of inhaling and exhaling breathing
movement of humans,animals and goods from one location to another
Which conclusion is best supported by his observations?
Answer:
The answer would be d finch 4 is adapted to eat small insects that live in tiny holes.
Explanation:
Help asap please! On 7 and 8
Answer:
7 is 3' AUC 5'
8 is 3' AUC 5'
Explanation:
remember in mrna the complementary base pair are adenine with Uracil and guanine with cytosine. you can also remember them as Apple Under and Car Garage.
4. Refer to the image below. Which statement is FALSE? *
O Option 1: ATP isn't used in this process.
Option 2: This process is an example of passive transport.
O
Option 3: Molecules move from an area of high concentration to an area of low
concentration.
O Option"4: This process occurs across the cell membrane.
O Option 5: ATP is used in this process.
The table lists some organelles and functions. Only one pair is correctly matched.
Functions of Organelles
Organelle Function
Nucleus Directs cell activity
Endoplasmic reticulum Breaks down sugar molecules to supply energy
Golgi apparatus Supports and protects organelles in the cell
Lysosome Produces proteins for the cell
Which organelle in the table is correctly matched with its function?
Answer:
I believe the correct answer is nucleus.
Neither endosomes nor lysosomes are found in the nucleus. The nucleus serves as the primary remote control for the cell. It acts as the cell's brain by giving instructions on what to do, how to grow, and when to reproduce.
What is the cell controlling power of nucleus?The nucleus serves as the primary remote control for the cell. It acts as the cell's brain by giving instructions on what to do, how to grow, and when to reproduce. The nucleus of the cell contains the cell's genes.
The nucleus is the area of the cell that manages all of its operations. The nucleus is a membrane-bound, spherical organelle.
Its membrane, known as the nuclear membrane, has nuclear pores that control how materials are transported into and out of the cell. The nucleus' ability to store DNA is its primary role.
Therefore, Nucleus organelle in the table is correctly matched with its function.
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Think of an organism you've heard of or read about that has a surprisingly unusual trait or behavior. How is this trait or behavior different from similar organisms? How does it help the organism survive in its environment?
Answer: The organism with an unusual behaviour that I have read of is the CHAMELEON
Explanation:
Behaviour is everything an organism does in response to changes in its environment. It is basically adaptive, geared mainly to promoting the organism's survival and reproduction. Generally, we associate behavioural adaptations with animals since most behaviour patterns involve movements of various body parts and locomotion. Animals exhibit a variety of behaviour patterns with respect to
--> obtaining food,
--> escape and defence,
-->surviving unfavorable conditions,
--> communication,
--> finding mates and
--> caring for the young.
The CHAMELEON is famous for its rapid colour changes as it moves from a background of one colour to another. It is DIFFERENT from other similar organisms because it can display a variety of coloured patterns to blend with its background.
The colour change exhibited by the chameleons helps the organism to obtain food and survive in its environment. The CHAMELEON simply sits still, unnoticed and when an unsuspecting insect flies by, it flicks out its tongue to catch it.
Answer:
I have heard that black bears are almost entirely vegetarian while many other bears including polar bears are carnivorous. The black is not actually considered friendly but studies have shown that compared to other animals it is quite nice. Studies have shown that the black bear is omnivorous but that it rarely and I mean rarely eats meat. This trait is different from similar species such as polar bears that eat mainly bearded seals. But maybe if they lived in a place that actually grew plants or other vegetarian things maybe it could have also been a vegetarian or even omnivores. The black bear is also considered “nice” researchers have said that when they studied black bears that they aren’t the meanest animals around which I guess is a plus. The black bears mainly live in forests or even sometimes alpines. So being omnivorous or mostly vegetarian may help the organism survive in its environment because there are a lot of plants and other greens that it can eat around the area it stays in. As well as, when it is in the alpines there may be little to no greens so it will resort to meat or fish because it has to feed its cubs or because it is simply just hungry.
Explanation:
Complete the following sentence.
__________ is the science and practice of growing gardens.
Answer:
Horticulture is the science and practice of growing gardens.
Explanation:
What are the five fields of plant biology?
Please explain your answer !!
Thank you!
Answer:
Plant biochemistry.
Plant ecology.
Plant evolution.
Plant physiology.
Plant anatomy and morphology
3characteristics of good respiratory surface
thin walls.
a moist inner surface.
a huge combined surface area.
*PLEASE ANSWER IM BEING TIMED!!*
Most ecosystems tend to be complex because
they are found in all climates.
potential competitors in the ecosystem often occupy slightly different niches.
they all contain a wide variety of producers.
of symbiotic relationships within them.
Answer:
the most likely answer is option 3
they all contain a wide variety of producers
what is the meaning of respiration
Answer:
in physiology respiration is the movement of oxygen from the outside environment to the cells with tissues and the removal of carbon dioxide in the opposite direction .. in contrast exhalation is usually a passive process
hope it's helpful
Answer:
The process of breathing.
Explanation:
The lungs and respiratory system allow us to breathe. They bring oxygen into our bodies (called inspiration, or inhalation) and send carbon dioxide out (called expiration, or exhalation). This exchange of oxygen and carbon dioxide is called respiration.
**Physiological respiration and cellular respiration are not the same. People sometimes use the word "respiration" to refer to the process of cellular respiration, which is a cellular process in which carbohydrates are converted into energy. The two are related processes, but they are not the same.
18. Which of the following is not an environmental consequence of aquaculture? (1 point)
It releases wastewater into natural environments.
It breeds diseases that devastate fish populations.
It introduces invasive species to natural ecosystems.
It causes wild fish populations to become too large.
It encourages overfishing of wild fish used to feed farmed fish.
1.3 Genes and Chromosomes.
___ are sections of ___ that code for the production of DNA code.
Answer:
Genes and DNA
Explanation:
Why do you think species are endangered? Name some root cause of the problem.
How do you think this situation can be realistically improved?
Human-created climate change is caused by
A. decreased burning of fossil fuels.
B. increased carbon dioxide in the air.
C. increased oxygen in the air.
D. increased use of green energy sources.
Answer:
B
hope that helps<3
Answer: B
Explanation: increased burning of fossil fuels coupled with deforestation have resulted in increased levels of CO2 in the atmosphere.