Active transport is used to transport very large molecules true or false

Answers

Answer 1

Answer:

True

Explanation:


Related Questions

Which of the following is not a function of the cell membrane?
•It supports and shapes the cell.
•It assists in cell division.
•It positions organelles.
•It provides energy to the cell.

Answers

Answer:

A is the right answer

Explanation:

The cell wall is the outermost layer of the cell. It surrounds the cell membrane and provides these cells with structural support and definite shape. It prevents the over-expansion of the cell when water enters the cell.

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An enzyme called glucocerebrosidase breaks down a glycolipid in the body known as glucocerebroside. However, in a genetic disease known as Gaucher’s disease, the body does not produce enough glucocerebrosidase. Therefore glucocerebroside can build up in the body and this can cause serious side effects such as anemia and swelling of the liver and spleen. Identify the substrate.

Answers

Answer:

glucocerebroside

Explanation:

The substrate is the substance being acted upon by the enzyme. The enzyme glucocerebrosidase breaks down glucocerebroside. Therefore, glucocerebroside is the substrate in this example.

A big body of land on the globe?

Answers

russia is huge so russia and the places around there

ey's Bell Jar...
Abstract
Background
Photosynthesis maintains aerobic life on Earth, and Joseph Priestly first
demonstrated this in his eighteenth-century bell jar experiments using mice and
mint plants. In order to demonstrate the fragility of life on Earth, Priestley's
experiment was recreated using a human subject placed within a modern-day
bell jar.
Methods
A single male subject was placed within a sealed, oxygen-depleted enclosure
(12.4% oxygen), which contained 274 Cz and C plants for a total of 48 h. A
combination of natural and artificial light was used to ensure continuous
photosynthesis during the experiment. Atmospheric gas composition within the
enclosure was recorded throughout the study, and physiological responses in the
subject were monitored.
Results
After 48 h, the oxygen concentration within the container had risen to 18.196, and
hypoxaemia in the subject was alleviated (arterial oxygen saturation rose from
86% at commencement of the experiment to 99% at its end). The concentration
of carbon dioxide rose to a maximum of 0.66% during the experiment.
Conclusions
This simple but unique experiment highlights the importance of plant life within
the Earth's ecosystem by demonstrating our dependence upon it to restore and
sustain an oxygen concentration that supports aerobic metabolism. Without the
presence of plants within the sealed enclosure, the concentration of oxygen
would have fallen, and carbon dioxide concentration would have risen to a point
at which human life could no longer be supported.

Answers

Answer:

heyyyyy

Explanation:

Was being quicker beneficial for the gazelle. Why?

Answers

Answer:

A gazelle often chased by cheetahs in the wild, being quicker would be beneficial for that reason.

Which of the following is an example of diffusion?
A water freezing into ice
B sugar dissolving in a glass of water
C rain falling from the sky
D a stone sinking to the bottom of a lake

Answers

The answer is B, because the sugar is moving down a concentration gradient.

Herbivores obtain most of their energy by
A.consuming animals
B.consuming plants
C.producing sugar
B. absorbing sunlight

Answers

Answer: B.) Consuming plants


Herbivores consume and get their energy from only plants :)

..........become butterfly after pupa stage.


1-Caterpillar

2-egg

3-pupa

4-tadpole ​

Answers

Answer:

caterpillar

Explanation:

caterpillar become butterfly after pupa stage

In subduction, what determines which plate will be on top and which will be on bottom?

Answers

the top plate will be on the top and the bottom plate will be on the bottom??? in subduction

Why is caffeine used for heart rate experiments

Answers

Physiologically, caffeine mimics the effects of epinephrine, a sympathetic nervous system stimulant, which leads to an increased heart rate and respiration rate (Mahmud et al., 2001).

A membrane that allows some molecules to pass through but not others is called a(n)_____ _____ _____

Answers

has a selection function so it selects the substances which to enter or not inside the cell

Villi____?
A: are found in the large intestine
B: release bile into the small intestine
C: pass digested food into the blood
D: allow blood to enter the small intestine
Please help me I will try to give branliest, and give more points than usual.
Do not answer if you do not know.

Answers

Answer:

B.

Explanation:

release bile into the small intestine

Answer:

D

Explanation:

RELEASE BILE INTO SMALL INTESTINE

IS INVORRECT

Which is an outer planet?​

Answers

Saturn is an outer planet

3. What basic concept of biology includes the idea
that new cells can be produced only by the divi
sion of existing cells?

Answers

Answer:

It would be the cell theory

Cell theory is the basic concept of biology includes the idea that new cells can be produced only by the division of existing cells.

What is cell theory?

In biology, cell theory is a scientific theory first formulated in the mid-nineteenth century, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells.

A component of the cell theory is that all living things are composed of one or more cells. A component of the cell theory is that the cell is the basic unit of life. A component of the cell theory is that all new cells arise from existing cells.

All known living things are made up of cells. The cell is structural & functional unit of all living things. All cells come from pre-existing cells by division. (Spontaneous Generation does not occur).

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The excretory system disposes waste through the stomach.

True or False?

Answers

Answer:

False.

Explanation:

Actually the stomach isn't part of the excretory system, it's part of the digestive system.  The organs of the excretory system include the kidneys, large intestine, liver, skin, and lungs. The kidneys (also part of the urinary system) filter out blood from waste. The large intestine's job is to eliminate solid waste that remains after food is digested and water is extracted from the indigestible matter.  The liver breaks down many substances in the blood, including toxins. Sweat glands in the skin secrete a fluid waste called sweat or perspiration; however, its primary functions are temperature control and pheromone release. The lungs (also in the respiratory system) excrete some waste products, such as carbon dioxide and water.

Hope this helps!

What is the ratio of hydrogen and oxygen in all carbohydrates when compare to carbon ____hydrogen: _____oxygen

Can anyone tell me this ?

Answers

Answer:

n(C1H2O1)

Explanation:

Think of glucose, which is C6H12O6.  In the case of glucose, n would be 6.

FIRST RIGHT ANSWER GETS BRAINLYEST OR WHATEVER
Water molecules usually end up as:
a.
Carbon
c.
Nitrogen
b.
Water molecules
d.
Blood

Answers

Answer:

The answer would be C) Nitrogen

Explanation:

Answer:

I think is A

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during which phase of the cell cycle does most cell growth occur

Answers

Cell growth occurs constantly throughout interphase. S phase is the time when all the cell's chromosomes are replicated so significant cell growth occurs here, but during both G1 and G2 cell growth occurs.

hope this helps

During the interphase of the cell cycle most cell growth takes place.

What is cell cycle?

A cell cycle is the series of events that takes place in a cell as it grows as well as divides.

A cell spends the maximum of its time in what is referred to as interphase, where it grows, reproduces its chromosomes, along with prepares for cell division. The cell then exits interphase, goes through mitosis, and divides completely.

The cell cycle's longest phase is interphase. This is the stage at which the cell undergoes and duplicates its DNA before entering mitosis.

Chromosomes align, separate, and move into new daughter cells during mitosis. Because the prefix inter- means "between," interphase occurs between mitotic (M) phases.

Thus, the cell growth takes place in the interphase of the cell cycle, and the division takes place in the M-phase.

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What s the point in the vascular system in a plant

Answers

Answer:

Vascular system, in plants, assemblage of conducting tissues and associated supportive fibres. ... Xylem tissue transports water and dissolved minerals to the leaves, and phloem tissue conducts food from the leaves to all parts of the plant.

Explanation:

Analysis of mitochondrial DNA can answer interesting and important questions. For which of the questions would analyzing mitochondrial DNA be futile?

Answers

Answer:

to identify the father of the individual

Explanation:

Mitochondrial DNA (mtDNA) is the circular DNA molecule found in mitochondria, which is an organelle responsible for cell respiration by converting chemical energy from foods to ATP by the process of cellular respiration. In humans, mtDNA consists of about 16,500 base pairs (bp) and encodes for 22 tRNAs, 2 rRNAs and 13 proteins. In most of the species, including humans, mtDNA is inherited from the mother (i.e., it is maternally inherited), and therefore mtDNA cannot be used to trace the patrilineal ancestry of a given person or population.

How many atoms of oxygen are in the formula for 2 hydrogen peroxide? 2H202

Answers

There are 2oxygen atoms

Answer:

The mass of hydrogen peroxide, H2O2 would be calculated like this: H2O2 has 2 hydrogen atoms and 2 oxygen atoms in it. So one molecule of hydrogen peroxide weighs in at 34.02 u.

Explanation:

pretty self explanatory.

The mountains of the Sierra Nevada play a role in the formation of desert in eastern California and Nevada.

What is this an example of?

Answers

Answer:

The correct answer would be - The lithosphere influences the atmosphere and biosphere .

Explanation:

The mountains of the Sierra Nevada play the role of a barrier that blocks the air or wind that brings the clouds filled with water to eastern California and Nevada as it can not pass the mountains and reach the other side of mountains which cause less or no rain to this region.

Rain is a very important aspect for the region to be less diverse in plants and animals as most of them require water but as it is described there is no or very little precipitation so it becomes desert.

This makes it an example of the lithosphere influences the atmosphere and biosphere .

Interpret each rule of Kartilya ng Katipunan in one word ​

Answers

Answer:

Throughout the clarification category below, the definition including its query is mentioned.

Explanation:

The Kartilya ng Katipunan acted as either the reference book or field guide for the organization's new representatives, which set out other principles and expectations including its party. Emilio Jacinto published the first version of Kautilya. The revamped Decalogue was later published by Andrés Bonifacio. It would never be released although Bonifacio thought that Kartilya of Jacinto seemed equivalent to what he has already created.

Fireflies emit light. The production of light by an organism is called bioluminescence. To generate visible light, cells in a firefly's tail produce thousands of luciferase enzymes. Luciferase binds to a chemical called luciferin. Once bound, the luciferase enzyme speeds up a chemical reaction that combines an oxygen molecule and luciferin to produce oxyluciferin. This reaction requires energy and releases light. Which of the following best describes how the luciferase enzyme speeds up the chemical reaction? F Luciferase increases the amount of time the light is visible. G Luciferase decreases the amount of energy required for the reaction to start. H Luciferase increases the number of sites on luciferin that must bind to oxygen. J Luciferase decreases the temperature of the environment inside the body of the firefly.​

Answers

Answer:

Fireflies emit light. The production of light by an organism is called bioluminescence. To generate visible light, cells in a firefly's tail produce thousands of luciferase enzymes. Luciferase binds to a chemical called luciferin. Once bound, the luciferase enzyme speeds up a chemical reaction that combines an oxygen molecule and luciferin to produce oxyluciferin. This reaction requires energy and releases light. Which of the following best describes how the luciferase enzyme speeds up the chemical reaction?

Explanation:

b

The description that best describes how the luciferase enzyme speeds up the chemical reaction is - Luciferase decreases the amount of energy required for the reaction to start.

Fireflies generate a chemical reaction that allows their body to emit light, inside their body. This light generation is called bioluminescence. This process involves various steps:

Oxygen binds with calcium, luciferin chemical with ATP to make oxyluciferin.In the body of fireflies, there is the production of an enzyme called luciferase.This chemical reaction takes place in presence of luciferase that speeds up this reaction by decreasing the activation energy of the reaction.At the end of the reaction body of fireflies light up.

Thus, the correct answer is - Luciferase decreases the amount of energy required for the reaction to start.

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what does evaporation produces?

Answers

Condensation since Precipitation is the cause or name of when any liquid falls from a Cloud.

Answer is Condensation is it’s the presses of evaporation. Water vapor is the same thing but it’s water evaporated.

Answer:

water vapor

Explanation:

A liquid turning into a gas is evaporation. It is how water gets from the surface of the Earth to the atmosphere.

Evaporation plays a significant role in the energy exchange that results in atmospheric motion, affecting weather and climate in the Earth-atmosphere system.

Why do you think so many people are ignorant on the topic of overpopulation and it's effects? Please answer in one paragraph (: thanks

Answers

Answer: Human overpopulation is among the most pressing environmental issues, silently aggravating the forces behind global warming, environmental pollution, habitat loss, the sixth mass extinction, intensive farming practices and the consumption of finite natural resources.

Answer:

I think they are ignorant because they don't understand what overpopulation can do to the world. Meaning overpopulation can cause less jobs for people. Less food to go around.  

Explanation:

Do you think a magnitude 9.0 earthquake will generate a tsunami?

Answers

its possible but rare

which is smallest to largest form?
human tissue, human cell, bacterial cell, virus, human organ, human organ system.

Answers

Answer:

Explanation:

virus, bacterial cell, human cell, human tissue, human organ, human organ system.

The smallest to largest forms in the order:

VirusBacterial cellHuman cellHuman tissueHuman organHuman organ system.

The Virus comes first as it is much smaller than the Bacterial cell and can be

viewed with an electron microscope which has a higher magnification

Cells are the smallest unit of life and they aggregate to form tissues . The

tissues then aggregate to form organs and organs to organ system which is

why the human cell comes next followed by the Human tissue, Human organ

and lastly Human Organ systems.

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The space within a cell which holds water is:
a) nucleus
b) cytoplasm
c) vacuole
d)chloroplast

Answers

Answer:

[tex]\boxed {\tt C. \ Vacuole}[/tex]

Explanation:

Let's analyze each answer choice.

A. Nucleus

Houses the genetic material (DNA) and produces RNA

B. Cytoplasm

Fills in space, keeps organelles in place, and chemical reactions occur here

C. Vacuole

Stores substances, isolates toxins, helps with excretion

D. Chloroplast

Photosynthesis occurs here

Based on the functions of each organelle, we can assume the best answer is C. Vacuole. Vacuoles store substances, so these organelles would hold water.

acer saccharum scientific name for the sugar maple tree acer is the name of the trees?

A.genus
B.phylum
C.species
D.kingdom

Answers

Genus comes first so genus
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