Answer:
Most of the energy required by the human body is provided by carbohydrates and lipids. As discussed in Chapter 3 "Carbohydrates", glucose is stored in the body as glycogen. While glycogen provides a ready source of energy, lipids primarily function as an energy reserve.Aug 13, 2020
Explanation:
Which of the following is NOT a form of active transport?
A) cyclosis
B) phagocytosis
C) diffusion
D) pinocytosis
Answer:
B) phagocytosis.
Explanation:
Phagocytosis is a process in which a cell attaches to the element it wishes to enclose on the exterior of the cell and attracts the item within as it encloses it. Phagocytosis is commonly done when the cell, such as a virus or an infected cell, is attempted to destroy things and often is employed by immune cells.
This is quite particular and dependent on the cell being able to bind to an article it wishes to ingest via cell surface receivers.
Phagocytoses differs from other techniques of endocytism. Unless the cell comes in direct contact with the particle it wishes to ingest, Phagocytosis will not occur.
Diffusion is a type of passive transport. It occurs when molecules transfer passively from high concentration to low concentration zones. So, option c is right.
Active transport involves using energy to move molecules across a membrane against a concentration gradient.
Pinocytosis and phagocytosis are both types of endocytosis. Cytosis is the movement of cytoplasm within a cell. Both are examples of active transport since they both require energy.
Diffusion is the passive movement of molecules from a region of high concentration to a region of low concentration across a cell membrane. It's an example of passive transport not active transport.
Therefore, Diffusion is the only option that is not an active transport mechanism. Thus, option C is correct.
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As ecosystems move through the states of succession, the populations of organisms in them change. Which of the following describes the stage of succession likely to have the most species diversity?
What are nucleic acids responsible for?
Answer:
The functions of nucleic acids have to do with the storage and expression of genetic information. Deoxyribonucleic acid (DNA) encodes the information the cell needs to make proteins. A related type of nucleic acid, called ribonucleic acid (RNA), comes in different molecular forms that participate in protein synthesis.
Explanation:
Nucleotides are important as they form the building blocks of nucleic acids, such as DNA and RNA. Nucleotides are made up of 3 parts. The first is a distinct nitrogenous base, which is adenine, cytosine, guanine or thymine.
48:47
Which of the following factors would have the smallest impact on a population’s size?
a.
the total number of organisms
b.
the available water supply
c.
the variety of organisms
d.
adequate shelter
Which of the following correctly matches an organelle and its functions?
Lysosome .... movement
O
Mitochindria..... photosynthesis
Central vacuole .... storage
Nucleus .... cellular respiration
O
Ribosomes ..... manufacturer of lipids
Discuss why liquid water can exist on Earth.
please help me out here
What are the two inputs for aerobic cellular respiration?
a. oxygen and glucose
b. carbon dioxide and atp
c. carbon dioxide and water
d. glucose, atp and water
Oxygen and glucose are the two inputs for aerobic respiration.
What are Cellular respiration?The process of cellular respiration involves the oxidation of biological fuels in the presence of an inorganic electron acceptor, like as oxygen, to generate significant amounts of energy that are used to power the major creation of ATP.
The process of converting chemical energy from foods into adenosine triphosphate (ATP) in an organism's cells, followed by the discharge of waste products, is known as cellular respiration.
During catabolic reactions, which divide big molecules into smaller ones and release energy, respiration takes place. One of the main mechanisms through which a cell releases chemical energy to power cellular activity is respiration.
Therefore, Oxygen and glucose are the two inputs for aerobic respiration.
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What are the possible genotypes of the gametes?
Answer:
There are four possible combinations of gametes for the AaBb parent. Half of the gametes get a dominant A and a dominant B allele; the other half of the gametes get a recessive a and a recessive b allele. Both parents produce 25% each of AB, Ab, aB, and ab.
Explanation:
what of the following are functions of lipids? choose three correct answers
You didn't give any of the options so i'm gonna assume
forming waxy leaf coverings
storing energy in fat cells
forming cell membranes
What two important properties do all lipids share?
Answer:
all lipids repel water. all lipids are made primarily of carbon and hydrogen
Explanation:
i hope this helps:)
EMERGENCY! PLEASE ANSWER ASAP!
Answer:
they suck up liquid
Explanation:
they drink the other bugs blood (cool huh)
Describe the structure and function starch
Answer:
Starch is a carbohydrate. Carbs supply quick energy. Starches are a polysaccharide which are complex carbs. Its monomer is a monosaccharide
Explanation:
Starch: structure Starch is the storage polysaccharide of plants It is stored as granules in plastids (e.g. chloroplasts) and amyloplasts (small, membrane-bound organelles containing starch granules) Due to starch molecules being large polymers consisting of thousands of glucose monomers, starch takes longer to digest than glucose
The lumper potatoes that were grown in Ireland during the 1800s were essentially clones of one another. They all had the same genetic makeup. So, when a potato blight disease began infecting the potatoes, it spread to all potatoes equally. How could greater genetic diversity have lessened the devastation of the potato blight?
The question has options that are given as below:
A. Some potatoes would be more likely to have a genetic resistance to the disease and survive. B. The potatoes would have been able to trade genes so that they could survive the disease. C. More of the potatoes would have been edible varieties. D. None of the potatoes would have been infected by the disease.
Answer:
The correct answer is - A. Some potatoes would be more likely to have a genetic resistance to the disease and survive.
Explanation:
Genetic resistance is the capability or ability of some individual organisms of a population or species have to adapt the environmental or genetic changes and survive while other organisms of species are not able to do the same.
In this case, some of the potatoes more likely to show genetic resistance to the disease and condition and survive from the devastation of the potato blight
all livings things are?
How does population density differ from population size?
a.
Population size takes all organisms into account, while population density only takes specific age groups of the population into account.
b.
Population size is the total number of organisms, while population density is the total number of organisms within a given area.
c.
Population size is the total number of organisms within a given area, while population density is the total number of organisms of a specific age.
d.
Population size is the total number of organisms of all species, while population density is the total number of organisms of a specific species.
How does population density differ from population size?
a.
Population size takes all organisms into account, while population density only takes specific age groups of the population into account.
b.
Population size is the total number of organisms, while population density is the total number of organisms within a given area.
c.
Population size is the total number of organisms within a given area, while population density is the total number of organisms of a specific age.
d.
Population size is the total number of organisms of all species, while population density is the total number of organisms of a specific species.
Population size is the number of individuals in a population. Population density is the average number of individuals per unit of area or volume.
Answer:
b
Explanation:
Which of the following correctly describes the outcome of meiosis?
Answer:The cell produced at the end of meiosis contained half of the number of chromosomes as the parent cell
Explanation:hope this helps and happy hallowen :D
Answer:
A. Four haploid daughter cells that are genetically different.
Explanation:
the single main root is called the...
Answer:The first root that germinates from the seed is called‘radical’ The radical develops into single prominent root called as ‘primary or main root’ It is the strongest and grows vertically downwards due to gravitation and deep into the soil Several branches arise from the main tap root known as lateral or secondary roots
Explanation:
Answer:
the taproot
Explanation:
1. What is the difference between MODERN classification hierarchy and Linnaen
classification hierarchy?
Which of the following would be a function of the nucleic acids?
A.
They are used to store and transmit genetic information
B.
They are used to store energy
C.
They are used for structural purposes
D.
They are used to insulate the body
Nucleic acids include DNA and RNA, are the genetic material in living things. The main function of the nucleic acids is to store and transmit the genetic information. Thus, the correct option is A.
What are Nucleic acids?Nucleic acids are biopolymers, which are essential to all known forms of life. They are composed of nucleotide polymers. Nucleotides are the monomers of nucleic acids which are made up of three components: a 5-carbon sugar, a phosphate group and a nitrogenous base. The two main classes of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
Nucleic acids play essential roles in all cells and viruses. The main function of nucleic acids involves storage and expression of genetic information in organisms. Deoxyribonucleic acid (DNA), encodes the information cells need to make proteins.
Therefore, the correct option is A.
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A bacterium, containing one circular DNA chromosome, undergoes four rounds of replication. How many new strands of DNA would result?
Answer:
The correct answer is 32 strands.
Explanation:
In bacterium, DNA replication is bidirectional which means it takes place in both directions. The origin of replication starts the replication, it is a specific sequence of nucleotides. Each strand of circular DNA acts as a parent strand to replicate its complementary new strand, resulting in two new DNA strands, one parent strand, and one new synthesized strand. So after the first round of replication, there are 4 strands formed.
Similarly, during the second round of replication each of the four strands will be synthesized lead to a total of 8 strands in the same manner. So by the same process in 3rd round will lead to 16 new strands and by the fourth round of replication 32 strands will be synthesized.
Thus, the correct answer is 32 strands.
For which of the following reasons do small, isolated islands have a greater rate of
species extinction than larger, less isolated islands?
Answer:
Larger islands that are large and close to the mainland are shos lower rate of extinction due to the fact that the species present have more space so there will be more resources available in comparison to smaller islands where limited space and limited resources available.
Extinction is greater on islands isolated due to the unlikelihood of immigration and as it is opposite to the island close to the mainland and competition is more in isolated islands.
Lack of immigration, lower space and resources are the reasons small isolated islands have a greater rate of extinction.
Large islands have large space for the growth of an organism as well as more resources which lowers the competition between organisms while on the other hand, small islands have lower space for growth and low amount of resources which causes to more competition leads to greater rate of extinction so we can conclude that lack of immigration, lower space and resources are the factors that affect the rate of extinction.
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How environmental conditions influence modern history?
Plz it’s 7th grade science
Answer:
it helps future generations understand the impacts of humans and pollution on health.
Explanation:
How does water rise from the roots of a tree to the very top?
Answer:
Explanation:
" Water travels from a tree's roots to its canopy by way of this conductive tissue. In hardwoods, water moves throughout the tree in xylem cells called vessels, which are lined up end-to-end and have large openings in their ends. In contrast, the xylem of conifers consists of enclosed cells called tracheids."
The cell produces energy in the
Please help
Answer:
Mitochondria
Explanation:
Answer:
In the mitochondria where atp is produced
Explanation:
proteins that act as catalysts in biological reactions
A. glucose
B. enzyme
C. ATP
D. molecule
PLS ANSWER ITS URGENT
Describe the path that air takes as it enters and passes through the human respiratory system
Answer: The pathway of air in the respiratory system starts with the external organs of the nose and mouth. Nose: Air is inhaled through the nostrils (and sometimes through the mouth) where it is filtered by the hairs and cilia to remove dust particles and moistened. The nasal cavity also moderates the temperature of the inhaled air.
Explanation:
Why should you never smell a chemical directly?
A. Many chemicals have no smell.
O B. All chemicals smell the same.
C. You cannot learn anything by smelling.
D. Some chemicals can hurt your windpipe.
Answer:
D
Explanation:
Some chemicals can hurt your windpipe
Answer:
D
Explanation:
by directly smelling something you are ingesting tiny particles of it, which is why directly smelling a chemical is a bad idea.
What is NOT an example of a primary consumer?
co
A deer that eats mostly grass
b An osprey that eats mostly fish
C
A mouse that eats mostly seeds
d A squirrel that eats mostly acorns
Answer:
b An osprey that eats mostly fish
Explanation:
or a primary consumer is an animal that feeds on plants; a herbivore.
Why do we rely on lactic acid fermentation only as a temporary energy source?
Answer:
This usually happens when there is not enough oxygen in the body, so lactic acid fermentation provides a way to get ATP without it. The process relies on stored energy sources such as sugars or starches, which it can break down to make simpler molecules and energy. ... Lactic acidosis usually occurs because of exercise.
The process relies on stored energy sources such as sugars or starches, which it can break down to make simpler molecules and energy. Lactic acidosis usually occurs because of exercise.
What is lactic acidosis?Lactic acidosis refers to lactic acid build up in the bloodstream. Lactic acid is produced when oxygen levels become low in cells within the areas of the body where metabolism takes place.
The symptoms of lactic acidosis include abdominal or stomach discomfort, decreased appetite, diarrhea, fast, shallow breathing, a general feeling of discomfort, muscle pain or cramping.
Lactic acidosis occurs when lactic acid production exceeds lactic acid clearance. The increase in lactate production is usually caused by impaired tissue oxygenation, either from decreased oxygen delivery or a defect in mitochondrial oxygen utilization.
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