What is the main function of vacuoles?

Answers

Answer 1
Vacuole, in biology, a space within a cell that is empty of cytoplasm, lined with a membrane, and filled with fluid. Especially in protozoa, vacuoles are cytoplasmic organs (organelles), performing functions such as storage, ingestion, digestion, excretion, and expulsion of excess water.

Related Questions

List the 2 Sources of Energy for Living Organisms.

Answers

Answer:

The Sun is a source of energy for organisms and the ecosystems of which they are a part. Producers, such as plants use energy from sunlight to make food energy by combining carbon dioxide and water to form organic matter.

Diabetes is often suspected when glucose shows up in urine tests. Use the model to explain how glucose could be present in urine. Why do you think this symptom is especially concerning for young people?

Answers

Answer:

S.A for Edmentum and Plato

Like and Rate

In step 1, blood goes to the kidney for filtration. If excess sugar exists in the blood, the filtered substances will have more sugar than they do in a person who doesn’t have diabetes. In step 2, there is some reabsorption of sugar. But if there’s an unusually high amount to filter, some sugar will stay in the urine as it passes through the renal tubule to be excreted by the body. This symptom is concerning because it could stress the kidney, which could lead to kidney problems at a young age.

Selena learns that, as specialized cells mature, certain organelles increase in
quantity while other organelles may disappear. She also learns that muscle cells
require large quantities of energy in the form of ATP. Based on this, she can predict
that muscle cells would contain an unusually high number of
A Lysosomes
B Ribosomes
C Rough endoplasmic reticulum
D Mitochondria

Answers

Explanation:

rewatch the video your teacher provided on edunity

Answer:

mitochondria

Explanation:

muscles need energy for contraction and lots of mitochondria is what helps them do this

how did wegner use climate evidence to support his hypothesis​

Answers

Explanation:

Wegener used evidence of climate change to support his hypothesis. As a continent moves toward the equator, its climate becomes warmer. As a continent moves toward the poles, its climate becomes colder. But the continent carries with it the fossils and rocks that formed at its previous locations.

help with this please

Answers

Answer:

cell wall: Rigid protective barrier around a cell made of polysaccharides

Explanation:

Thats all i got sorry

Identify the process in which the cell strives to maintain dynamic equilibrium:
homeostasis
turgor pressure
cytolysis
plasmolysis

Answers

Answer:

homeostasis

Explanation:

Homeostasis refers to the ability of the cell to keep a constant and stable environment. This includes chemical, physical, and biological components.

Cells need to regulate their environment despite the conditions outside of the cell. They need to be able to quickly adapt to changes to avoid harm to the cell.  

What is produced when an atom loses an electron?

Answers

Answer:

It becomes a positively charged ion.

Explanation:

Answer:

it will lose negative charge and become positively charged

Help identifying plant parts

Answers

Answer:

a: pistil b: stigma c: style d: stamen f: anther g: filament e: petal h: sepal i: stem j: ovule/ovary? k:?

which member of the solar system has a diameter of 3.48 x 103 kilometers

Answers

Answer:

j

Explanation:

Which event or principle CANNOT have its validity directly tested by laboratory experiment?
Select one:

a. the big bang theory

b. the conservation of energy

c. the periodicity of element properties

d. the acceleration of objects due to gravity

Answers

 because the Big Bang theory has to do with space and earth

Are eukaryotes multicellular or unicellular or both?

Answers

The answer is actually Both


A student wondered it butterflies would show any differences in their wing color it, as caterpillars, they were grown in the dark or grown in bright white light
Which statement would be a possible hypothesis for an experiment to test this idea?

Answers

Answer:

probably bc most caterpillars are mostly green and then they turn in to like brown or other colors

Explanation:

Whats the difference from the first and second law of thermodynamics

Answers

Answer:

Explanation:

the first law is the law of conservation of energy which basically means energy can't be created or destroyed in an isolated system.

the second law is that the entropy always increases in the isolated system. entropy is the measurement of the units thermal energy per unit temp.

Can anyone help me with any of these questions? Please

Answers

Answer:

peanut butter - reduces risk of heart disease and lowers cholesterol

egg - protein; cell repair and growth

BRAINLIST OPPORTUNITY


where are you MOST likely to find infectious agents? Check ALL that apply!!

in saliva
in mucus
on a door handle
on a water fountain
on a gene
in sewage
in animal waste

Answers

Answer:

All

Explanation:

Answer:

A, B, C, D, F, G

**all except on a gene :)**

How does the DNA found in your eye cells compared to the DNA found in your skin cells?

Answers

Answer:

Only 50% of the DNA in an eye cell can be found in a skin cell.

Diffusion is an important process in animals and plants.
The movement of many substances into and out of cells occurs by diffusion.
Describe why diffusion is important to animals and plants.
In your answer you should refer to:
• animals
• plants
• examples of the diffusion of named substances.

Answers

Answer:

Diffusion helps animals in respiration. The cells in an animal's body need glucose and oxygen for respiration. Both these are carried in the blood. When blood reaches the cells the molecules of glucose and oxygen diffuse out of the blood and into the cells. As cells use up the glucose and oxygen they produce waste chemicals and carbon dioxide.

Diffusion is a very important process for photosynthesis where carbon dioxide from the stomata diffuses into the leaves and finally into the cells. This helps the plants to photosynthesize and produce more food.

Example for animals: Animals using glucose and oxygen in diffusion.

Examples for plants: Plants using carbon dioxide to photosynthesize.

When carbohydrate consumption exceeds the body's immediate needs for energy, glycogenesis ____________ .

Glycogen storage space in the liver and muscles is limited. When glycogen stores are full, use of glucose for energy ____________ and oxidation of fat for energy ____________ .

Overall, when carbohydrate intake is excessive, lipogenesis ____________


Increase or decrease

Answers

Answer:

When carbohydrate consumption exceeds the body's immediate needs for energy, glycogenesis  decreases.

The process of conversation of stored glycogen in the liver and muscles  to glucose is Glycogenesis. It takes place when the blood glucose drops,below certain levels and the body cells need glucose for biochemical activities.Therefore, when there are excess CHO consumption,more glucose would be in the blood,and thus no need for glycogenesis.(breakdown of glycogen)

Glycogen storage space in the liver and muscles is limited. When glycogen stores are full, use of glucose for energy __Increases__________ and oxidation of fat for energy ___decreases_________ .

Definitely, this is a simple logic.As the storage for glycogen is limited,excess glucose  move into the blood, since they can not be converted to glycogen.The glucose is expended through cellular reduce the amount in the blood. Therefore, Gluconeogenesis, the production of glucose from non-CHO substances drops. Hence beta- oxidation drops.

Overall, when carbohydrate intake is excessive, lipogenesis increases.The process of converting excess CHO to fatty acids.Biochemically it is the process of converting the Carbon precursor of acetyl co -A to fatty acids.Therefore this increases to synthesized more fatty acids from CHO

Explanation:

The picture shows a model of a cell.

What is the main function of the parts labeled Xin the model?

O A. To store enzymes that break down food

B. To provide cells with energy for their activities

C. To use energy from sunlight to make sugars

D. To hold and protect the cell's DNA

Answers

Answer:

it is b: to provide energy for their activities.

Explanation:

the organelle that's labeled x is a mitochondria.

Answer: the answer is b I just got iy

Explanation:

guys can u please ASAP

1. Which of the following is provided directly by the sun to plants for photosynthesis?
A. Energy
B. Carbon dioxide
C. Oxygen

Answers

Answer:

energy is provided by the sun

I ADDED EXTRA POINTS FOR A REASON!!!!!!!!!! GIVING BRAINLIEST, ⓉⒽⒶⓃⓀⓈ AND ✰FIVE STARS ✰

how do ferns reproduce?

Ferns produce male and female cones.

Ferns produce spores under its leaves.

Ferns produce egg and sperms cells in the leaves.

Ferns produce flowers that contain egg and sperm cells.

Answers

Answer:

The answer is C.

Explanation:

Most ferns reproduce differently, and that involves meiosis and fertilization. When you are thinking of the typical big fern plant, what it does is, by meiosis, produces spores, and spores have half the number of chromosomes of the big parent plant. The spores are released into the wind.

Answer: The correct answer on Ody2020 is: Ferns produce spores under its leaves.

Explanation: Got it right on the assignment.

Please help!! I have to label the organelles in this cell plant!

Answers

1) mitochondria
2)nucleus
3)vacuole
4)chloroplast
5) cell wall

HELP!!! 3 SENTENCES PLEASE!!!
how is the structure of DNA significant in the transfer of information?​

Answers

DNA stores instructions for making other large molecules, called proteins.

Long structures called chromosomes. Are made up of thousands of shorter segments of DNA, called genes.

Which of the following is not a characteristic of enzymes?
F
they are proteins
G
they act as a catalyst
H
they react with a specific substrate
they are unaffected by changes in temperature
J
they are unaffected by changes in temperature

Answers

Answer:

they are unaffected by changes in temperature. t

Explanation:

that's the answer J. u kinda wrote it in two places.

Describe how light enters into your eye. Be sure to use the following vocabulary: cornea, pupil, lens, retina, and
optic nerve.

Answers

Answer:

retina

Explanation:

Why does DNA need to be extracted from a cell before it can be analyzed?

Answers

Answer:

to study the genetic causes of disease and for the development of diagnostics and drugs.

Explanation:

It is important to extract DNA from a cell in order to study the genetic causes of disease and for the development of diagnostic and drugs. Scientists will use a cell culture system, which is cells from an organism that have either been made to continuously proliferate (grow) or are cancerous in nature (from cancer).

These cells allow us to continue working on experiments where we can change the conditions to determine various cell functions.

What question could you ask about the bones?

Answers

Answer:

How deep were the skulls buried?

You will NOT find a cell wall in which of these kind of organisms?

Answers

Answer:

Algae and fungi do not have cell wall and many other organisms do not have a cell wall.You can check it out on google for more examples.

Explanation:

Which of the following is NOT a photosynthetic pigment?

Cartenoids
cytokines
Chlorophyll
Xanthins

Answers

B because that’s apart of the cell cycle i’m pretty sure

Two differences between hormones and the nervous system

Answers

Answer:

Hormones can be proteins, lipids or cholesterol-based molecules. Neurotransmitters are protein. The main difference between hormones and neurotransmitters is that Hormones are produced in the endocrine glands and released into the bloodstream where they find their movement targets at a distance from their origin. In contrast, Neurotransmitters are released into the synaptic space by a terminal of an excited presynaptic nerve cell and transmit a nerve signal to the neighboring postsynaptic nerve cell.

Explanation:

Answer:

the nervous system and endocrine system (hormones) is that the nervous system uses electrical impulses to send messages through neurons while endocrine glands use hormones to send messages to the target cells through the bloodstream.

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