An amoeba is a single-celled organism that feeds on algae, plant cells, and bacteria. When an amoeba feeds, it first makes contact with the food particle. Next, the amoeba starts to surround the particle. Once the particle is completely engulfed, it is surrounded by a layer of the amoeba's membrane, forming a vesicle. The pH in the vesicle is then lowered and the contents are degraded.

What type of transport is involved in this process?

A.
endocytosis
B.
diffusion
C.
passive transport
D.
exocytosis

Answers

Answer 1

Answer:

A.  endocytosis

Explanation:

Endocytosis is the type of transport that is involved in this process because it engulf the food material. Amoeba engulfs food particles with the help of its pseudopodia which are the projections of cell membranes. A food vacuole is formed around the food particle. This process of engulfing a matter by the projections of the cell membrane to form a vacuole is called endocytosis.


Related Questions

a dark soil is usually rich in

Answers

Carbon. Because other chemicals such as iron oxidize and make the soil red same thing with magnesium making it whites etc.

while obtaining the vitals during the seconary assessment, the EMT will assess the respirations. what woul dbe included about the respirations during the primary vitals assessment

Answers

Answer:

Rate and tidal volume

Explanation:

Tidal volume is the volume of air moved in or out of the lungs with each normal breath. A normal tidal volume is around 500 to 600 mL per inspiration and/or 6 to 7 mL per kilogram of body mass. An Emergency Medical Technician (EMT) should assess the respiratory rate (as well as rhythm and quality), having into account that a normal respiratory rate in an adult is 12 to 18 breaths per minute (BPM). Moreover, an appropriate tidal volume is also fundamental in assisting individuals in respiratory distress and arrest.

The pollen
cone ...
A. contains the female egg cells,
B. contains the male gametophytes,
C. is usually much larger than the seed cone,
D. is the location of fertilization.

Answers

Answer:

The correct answer is B. The pollen cone contains the male gametophytes.

Explanation:

The cone is the reproductive organ of bare pollinators. Cones are not flowers but transformed stems or shoots without flower petals. In cones, male and female storages sit together in a shoulder-shaped arrangement on a short leg. Both males and females grow on pine. In male cones that are similar in most conifers, pollen matures, but the male cones wither quickly after the pollen has faded away.

Consider a neuron in which the Cl- concentration inside of the cell is 15 mM and outside of the cell is 140 mM. Once the ions flow and reach an equilibrium, approximately what will be the concentration of Cl- inside of the cell

Answers

Answer:

The correct answer is - negative.

Explanation:

Cl- ion is more concentrated outside of the cell, as it is given 140 and therefore it will try to move to the inside of the given cell as inside ion concentration is low.

At last, the diffusive force will be get to equilibrium due to an electrostatic force pulling Cl- ions back out of the cell. At this equilibrium point, Cl- ions will moved towards to the the neuron and cause the membrane potential to be more negative.

Calculate the percentage change in mass for the potato in 0.2 mol/dm3 sugar solution

Answers

Answer:

3.14g (3.s.f.)

Explanation:

change in mass = 0.25

mass at start = 7.96

percentage change in mass = 0.25/7.96 × 100

= 3.14g (3.s.f.)

Can you help me?
I need it asap
Thankyou in advance

Answers

Answer:

1. D

2. D

3. D

4. Kaingin system

5. reusing

Explanation:

I hope this helps.

What factors differentiate Earth's atmospheric layers?

A. Pressure and Rate of condensation

B. Radiation deflection and Rate of condensation

C. Temperature and Pressure

D. Temperature and Radiation deflection

Plz help

Answers

Answer:

What factors differentiate Earth's atmospheric layers?

A. Pressure and Rate of condensation

B. Radiation deflection and Rate of condensation

C. Temperature and Pressure

D. Temperature and Radiation deflection

Sulfonamides:A) interfere with elongation of peptidoglycanB) are metabolic analogs of PABA and block folic acid synthesisC) attach to the 30S ribosomal subunit and disrupt protein synthesisD) damage cell membranesE) block peptidases that cross-link glycan molecules

Answers

Answer:

The answer is B

Explanation:

sulfonamides inhibit bacterial folic acid synthesize enzyme( Dihydropteroate) which is responsible the activation (PABA) for synthesis of folic acid

The absorptive process that requires energy to move nutrients against the concentration gradient is ________.

Answers

Answer:

it is Active transport.

A climate zone is an area that is defined by two main factors. What are they?

Temperature and weather
Precipitation and climate
Weather and climate
Temperature and precipitation

Answers

Answer:

Temperature and precipitation.

Explanation:

Climate is defined as long-term climate patterns in a location. Looking at average temperature and precipitation through time is the simplest way to characterize the climate.

Temperature and precipitation are the two most significant factors in the climate of a place. Obviously, the annual average area temperature is significant, but the annual temperature range is important as well. Some locations range from the highest to the lowest temperature significantly wider than others. Average precipitation is very essential, but the annual change in precipitation is equally important. Some regions experience approximately the same precipitation year-round. For half of the year, other locations have very low precipitation while the other portion of the year has lots of precipitation.

Answer:

d

Explanation:

:D hope it helps!

The Venn diagram compares aerobic respiration and anaerobic respiration. Which statement could be categorized in the overlapping section of the Venn diagram?
A: uses pyruvic acid
B: has commercial uses
C: regenerates NADH
D: produces 36 ATP

Answers

Answer:

C. regenerates NADPH

Explanation:

hope it helps

Which is a symbol that represents SI units for temperature?
°C
g
L
°F

Answers

The answer is option a degree Celsius

Answer:

the answer is A on edge!

Explanation:

How did Newton map the orbits of the planets?

Answers

Answer:

Newton developed a mathematical formulation of gravity that explained both the motion of a falling apple and that of the planets. He showed that the gravitational force between any two objects is proportional to the product of their masses and inversely proportional to the square of the distance between them

Explanation:

a. A breakdown of U.S. household garbage reveals the largest amount percentage-wise is paper and paperboard. b. In U.S. households most of the water usage is in the bathroom. c. The founder of the modern environmental movement and author of Silent Spring is Rachel Carson d. Deciduous trees such as most pines do not lose their leaves/foliage in winter.

Answers

Answer:

c. The founder of the modern environmental movement and author of Silent Spring is Rachel Carson

d. Deciduous trees such as most pines do not lose their leaves/foliage in winter.

Explanation:

Yes, Rachel Carson is the founder of the modern environmental movement as well as author of Silent Spring. She was an American marine biologist, author, and conservationist which started the modern environmental movement in order to save the environment form pollution. Yes, the Deciduous trees such as most pines do not lose their leaves/foliage in winter, they only lose those leaves that are too old. They are considered as evergreen plants.

help pls should be easy?​

Answers

What you have selected should be right
The 1st one is correct

List in order the levels of classification,beginning with domain

Answers

Answer:

The answer is Domain, kingdom, phylum, class, order, family, genus, species.

Why can't cellular respiration occur without photosynthesis? (2 points)
Photosynthesis produces carbon dioxide, which is used in cellular respiration.
Cellular respiration requires carbon dioxide, which is produced by photosynthesis
Photosynthesis produces ADP, which is used in cellular respiration.
Cellular respiration requires glucose, which is produced by photosynthesis.

Answers

Answer:

d

Explanation:

What is a gene? ……………….

Answers

Answer:

2nd one is correct

Explanation:

Answer: B

Explanation:

Drag the substances into the correct category
water
Reactants Products

oxygen
energy
carbon dioxide
glucose

Answers

Reactants: Carbon Dioxide, Water, Energy
Products: Oxygen, Glucose

Answer: 100% on edge

Reactants:: glucose and oxygen

Products:: carbon dioxide, energy, and water

The term referring to the structures in the nucleus containing genetic material (literally "bodies of color") is

Answers

Answer:

chromosomes

Explanation:

chrom means color and somes means bodies

What is the purpose of using a Punnett square in studying genetics?

A. to determine the probability of an offspring to breed with another of the same phenotype
B. to determine the exact number of offspring having a particular genotype
C. to determine the probability of an offspring having a particular phenotype

D.to determine the probability of an offspring having a particular genotype

Answers

D. To determine the probability of an offspring having a particular genotype

The purpose of using a Punnett square in studying genetics is to determine the probability of an offspring having a particular genotype. Thus, the correct option for this question is D.

What is Punnett square?

Punnett square may be defined as a type of table in which all of the possible outcomes for a genetic cross between two individuals with known genotypes are determined. It is named after Reginald C. Punnett, who proposed this approach in 1905.

In genetics, Punnett square is extremely utilized in order to predict the possible outcomes of two unknown genotypes. With the help of these genotypes, phenotypes of a specific set of alleles are also determined. The important concept of Punnett square is that it always determines the probability, not the exact number.

Therefore, to determine the probability of an offspring having a particular genotype is the purpose of using a Punnett square in studying genetics. Thus, the correct option for this question is D.

To learn more about Punnett square, refer to the link:

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the two main function of sweat are

a. to keep the body cool and to remove excess protein

b. to remove waste products and to cool the body ​

Answers

Answer:

Sweat's main function is to control body temperature. As the water in the sweat evaporates, the surface of the skin cools.

Select from the drop-down menu to correctly complete this statement.
Inside the chromosomes are molecules that contain all information an organism needs to grow and reproduce. This is its __________.

Answers

Answer:

DNA

Explanation:

DNA's are the molecules that present inside the chromosomes.They contain all the information an organism needs to grow and reproduceDNA stands for deoxyribo neuclic acid

Carbon dioxide molecules cannot cling to water molecules.
True
False

Answers

Answer:

False

Explanation:

because water molecules are polar and carbon dioxide molecules are nonpolar. Water molecules have a weaker attraction than carbon dioxide molecules.

Transcribe the information in DNA to mRNA. which RNA nucleotide can pair with the Thymine(T)at the beginning of the strand. Drag it into the DNA antisense strand to make a pair.

Answers

Answer:

Adenine  can go with Thymine

Explanation:

The condition of muscle fatigue is best explained by: Question 1 options: insufficient intracellular quantities of ATP due to excessive consumption the inability to generate sufficient quantities of ATP due to feedback regulation of synthesis the all or none law lack of intracellular calcium

Answers

Answer:

The correct answer is ''insufficient intracellular quantities of ATP due to excessive consumption''

Explanation:

The energy source for the muscle to contract efficiently is adenosine triphosphate (ATP). When ATP is metabolized, energy is obtained. Under normal conditions, the muscle has a sufficient energy reserve to support a limited time of maximum activity. When this reserve is depleted, the body activates other metabolic pathways to achieve more ATP. Glucose is activated first, then carbohydrates, and last - only if the exercise is prolonged - lipids (fats). The muscle, therefore, ends up transforming this ATP into the necessary energy.Whether our body uses more fat or more glucose / glycogen as fuel will depend, above all, on the intensity and duration of physical exercise. The body uses more fat the more gentle and prolonged the exercise; while, the more intense the sport, the more important the need for glycogen will be.Muscle fatigue is the inability or lack of strength to continue doing a certain activity. It happens when the muscles are not strong enough to continue. Specifically, when carrying out a physical activity, the active muscle requires oxygen and energy reserves of glycogen; When the intensity of the activity is increased, this need for oxygen increases, exceeding the levels that the transport system is capable of providing.This situation leads to the active muscle looking for another source of energy, increasing lactic acid which, in turn, it develops a metabolic acidosis that can lead to the breakdown of muscle fiber. ATP is obtained from the oxidative degradation of metabolic substrates such as muscle glycogen, serum glucose, free fatty acids originating from muscles or adipose tissue, being characteristic of muscle fiber, the consumption of ATP, and the production of ADP and Pi, much faster than it regenerates.

Eukaryotes have three nuclear RNA polymerases. The primary function of RNA polymerase II is transcription of _____.

Answers

Answer: the answer is  protein-coding genes

(if this is right mark brainliest :))

Eukaryotes have three nuclear RNA polymerases. The primary function of RNA polymerase II is transcription of protein coding genes

what are the function of RNA   polymerase  ?

there are Three different types of RNA polymerases (RNAPs), which transcribe eukaryotic genes, such as RRNA genes are transcribed by RNA polymerase I.

mRNA, miRNA, snRNA, and snoRNA genes are mainly transcribed by RNA polymerase II, while tRNA and 5S rRNA genes are transcribed by RNA polymerase III.

short RNAs as well as the protein coding genes  are both transcribed by RNA polymerase II.

A Separate type of RNA polymerases are present in chloroplasts and mitochondria, where they specifically transcribe the DNAs of those organelles.

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If an area has very little permeability, such as a city where the ground is mostly concrete, what will happen to most of the rainwater?
A. It will become groundwater.
OB. It will be pumped into underground reservoirs by large machines.
C. It will become runoff.
D. The type of surface it falls on does not affect rainwater.

Answers

Answer:

C

Explanation:

The water won't be able to penetrate the ground so can't become ground water and reservoirs are usually above ground not underground so it will become run off.

Permeability is the ability of the substances to get diffused easily across the surface. The concrete ground results in the rainwater becoming runoff. Thus, option C is correct.

What is permeability?

Permeability is the capacity of the water or any fluid to pass and diffuse across the substances or any membrane to get from the higher to lower concentration.

The concrete ground and roads are not permeable and do not allow water to pass through the material and effects the collection of the rainwater through infiltration.

The rainwater is unable to filter into the groundwater and becomes runoff. This runoff gets accumulated on the roads and can even lead to floods and drain blockages.

Therefore, option C. the less permeable roads cause rainwater to become runoff.

Learn more about permeability here:

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White blood cells work by recognizing invading pathogens by their surface fragments, called __________.

Answers

Answer:

white blood cells that systematically envelop and kill pathogens such as bacteria, viruses, and fungi, worn-out body cells, and cells that have become cancerous. their surface fragments, called antigens, literally antibody generators.

Explanation:

Excision of a whole organ or mass without cutting into it as seen in the HoLEP procedure to treat BPH, is called

Answers

Answer:

enucleation po ^-^

Explanation:

ata? correct me if imma wrong -¿-

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