Answer:
If lysosomes were absent, there wouldn't have been a waste diposal system for the cell. Any foreign material that enters the cell or any worn out cell organelles wouldn't get digested
Hope that helps!
4. Choose the correct list of five major current environmental challenges.
A. Climate change, species loss, environmental degradation, pollution, and environmental justice
B. Climate change, species loss, crime, food shortage, pollution
C. Species loss, crime, water shortages, global cooling, food shortage
D. Environmental degradation, water shortage, environmental justice, food shortage, pollution
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Answer:
The answer is A
Explanation:
FIRST ONE PLEASE HELP FAST!
CELLS: Choose three membrane-bound organelles. Describe them below.
Include their shape, location, and a detailed description of their function.
Answer:Like a prokaryotic cell, a eukaryotic cell has a plasma membrane, cytoplasm, and ribosomes. However, unlike prokaryotic cells, eukaryotic cells have: a membrane-bound nucleus. numerous membrane-bound organelles (including the endoplasmic reticulum, Golgi apparatus, chloroplasts, and mitochondria)
Explanation:
Each organelle has it's own specific function to help the cell survive. The nucleus of a eukaryotic cell directs the cell's activities and stores DNA. Eukaryotes also have a golgi apparatus that packages and distributes proteins. Mitochondria are the power house of the cell and provide the cell with energy.
The
of a bacterium controls transport of compounds into and out of the cell.
Select one:
O plasma membrane
O cell wall
O Golgi apparatus
O electron transport chain
PLEASE HELP WILL GIVE CROWN
Answer:
C E A hope it helps
Explanation:
A healthy, stable ecosystem is one in which many kinds of plants and animals -
A) Lack what they need to live
B) Produce only a few offspring
C) Are protected from all diseases
D) Are able to meet their needs
Answer:
D) Are able to meet all their needs
Explanation:
the description sounds like a pretty healthy ecosystem to me
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.
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.
Learn more about bioluminescence:
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Analysis of mitochondrial DNA can answer interesting and important questions. For which of the questions would analyzing mitochondrial DNA be futile?
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.
Which of the following is an example of a question technology can solve?
A.Why does the heart beat?
B.Why does lightning strike?
C.How can we make an artificial heart?
D.Why do geese fly south for the winter?
Answer: b
Explanation:
Which best matches objects that a scientist would include on a list describing a forest ecosystem?
Answer:
A
Explanation:
Edg 2021
help !!!!!!!!!!!!!!!! Ik the answer doe hehe
Pure substances can be classified as or compounds. Answer here
Answer:
Elementshope it helps....
Which phrase best defines topography?
The art or practice of graphic delineation in detail usually on maps or charts of natural and man-made features of a place or region especially in a way to show their relative positions and elevations.
Which of the following is most appropriate unit to measure the distance Phoenix to Rocky Point ( Puerto Penasco), Mexico?
Answer:
Probaly miles or kilometers
Explanation:
Brain cells, which depend on glucose for energy, use the glucose transporter GLUT3, which has a Km of 1.5mM. Liver cells, which store glucose (as glycogen) after a meal and release glucose between meals, use the glucose transporter GLUT2, which has a Km of 15mM. Calculate the rate (as a % of Vmax) of glucose uptake in brain cells and in liver cells at circulated glucose concentrations of 3mM (starvation), 5 mM (normal levels), and 7mM (after a carbohydrate-rich meal). Use this rearranged M-M equation.
Answer:
Explanation:
Given that:
The brain cell which uses glucose transporter GLUT3 Km = 1.5 mM
The liver cell which stores glucose GLUT2 Km = 15 mM
The objective is to calculate the rate (as % of Vmax) of glucose uptake in brain cells and liver cells under starvation conditions.
Using the M-M equation i.e Michaelis- Menten equation;
[tex]Rate = \dfrac{V_{max}* [S]}{[S]+K_m}[/tex]
By rearrangement
[tex]\dfrac{Rate}{V_{max}}= \dfrac{[S]}{[S]+K_m}[/tex]
where;
[tex]V_{max}[/tex] = maximum velocity of a reaction
Thus; the rate as a % of Vmax of glucose uptake in brain cells is calculated as:
[tex]\dfrac{Rate}{V_{max}}= \dfrac{[3 \ mM]}{[3 \ mM]+1.5 \ mM}[/tex]
[tex]\dfrac{Rate}{V_{max}}= \dfrac{3 \ mM}{4.5 \ mM}[/tex]
[tex]\dfrac{Rate}{V_{max}}=0.667[/tex]
[tex]\dfrac{Rate}{V_{max}}=66.7 \%[/tex]
the rate as a % of Vmax of glucose uptake in liver cells is calculated as:
[tex]\dfrac{Rate}{V_{max}}= \dfrac{[3 \ mM]}{[3 \ mM]+15 \ mM}[/tex]
[tex]\dfrac{Rate}{V_{max}}= \dfrac{3 \ mM}{18 \ mM}[/tex]
[tex]\dfrac{Rate}{V_{max}}=0.166[/tex]
[tex]\dfrac{Rate}{V_{max}}=17 \%[/tex]
Thus, the uptake is larger brain cells due to the fact that the brain cells GLUT3 have higher tendency to attract glucose.
identify the remaining processes and componets of the carbon cycle
Answer:
Carbon is one of the most vital element for the existence of life. The carbon cycle is the one in which the carbon is transferred from the atmosphere to the living organisms i.e both plants, animals and to the earth and again back into the atmosphere, thereby maintaining a cyclicity.
Explanation:
Do you think a magnitude 9.0 earthquake will generate a tsunami?
RNA is chemically similar to DNA except that its sugars have an additional oxygen atom,
and the base thymine is replaced by a structurally similar base called
Answer:
Uracil
Explanation:
Uracil is in RNA thymine is in DNA
On which continent were fossils of both Glossopteris and Lystrosaurus discovered?
Australia
South America
Antarctica
North America
Answer:
C. Antarctica.
Explanation:
A Glossopteris typically refers to the largest and well known rank in the classification of seed ferns known as Glossopteridales.
Also, Lystrosaurus refers to the herbivorous rank in the classification of dicynodont therapsids typically originating from the late Permian and early Triassic epochs heavily built animals.
The continent on which fossils of both Glossopteris and Lystrosaurus were discovered is Antarctica.
Fossils are the remains of ancient life forms, which are preserved by natural processes. The fossils can be imprints, shells, and skeletons.
The fossils of Glossopteris and Lystrosaurus were discovered in Antarctica.
Glossopteris is one of the largest and best-known fossils of the seed ferns. The fossil of Glossopteris is important as it shows the evidence in the Permian period that ended 250 million years ago. The fossil of Glossopteris was discovered in Antarctica.
Lystrosaurus is an extinct genus that lived in the Permian and Early Triassic periods. It is a genus of herbivorous dicynodont therapsids. The fossils of Lystrosaurus were found in Antarctica and India.
Thus, the correct answer is Option C.
To know more about fossils, refer to the following link:
https://brainly.com/question/1241920
How much time does it take a person to walk 8 km east at a velocity of 4 km/h
Answer:
it takes 2 hours
Explanation:
brainlyest?
Answer:
2 hours
Explanation:
Time = Distance ÷ Speed
If the fatty acid palmitate (16:0) radiolabeled with 14C in C-16 were metabolized by mammalian cells under anaerobic conditions, what compounds would be tagged with 14C and in what position
The options are missing from the question,
Below are the options.
A) Tag would be CO2
B) Acetate in C-2
C) 1 uvate in C-3
D) pyruvate in C-3
E) oxaloacetate on C-1
F) palmitate in C-16
The correct answer to the question is option B
ACETATE IN C-2
If palmitate (16:0) which is a fatty acid radiolabeled with 14C in C-16, when metabolized under anaerobic conditions by mammalian cells,the compound that will be tagged with 14C will be ACETATE and the position it will be will be C-2
In an anaerobic condition, anaerobic CoA which is formed after the oxidation of fatty acid will now move into the Kreb cycle as a result of oxygen deficiency, taking the form of acetate,it will enter cytosol and will further be used for other purposes.
Planets that orbit the sun is a gas giant, terrestrial, or dwarf planet.
Answer:
Terrestrial i think:)
Explanation:
A solar system is made up of a star and the planets that orbit it. Our solar system’s four inner planets—Mercury, Venus, Earth, and Mars—are closest to the sun. They are called terrestrial planets, and are largely composed of rock and metal. The four outer planets—Jupiter, Saturn, Uranus, and Neptune—are gas giants.
it's known that only 9 planets orbit the Sun. There have been many solar system objects that have been discovered recently, but none of them have been classified as planets.
Gas dwarf A low-mass planet composed primarily of hydrogen and helium.
Gas giant A massive planet composed primarily of hydrogen and helium.
Question 1
All of the following are true of body systems within an animal, EXCEPT-
A. each system within the body is made up of multiple parts.
B. body systems interact with other body systems at a given time.
C. each part of a system only has functions for that system.
D. systems can respond to the needs of the animal.
The statement 'each part of a system only has functions for that system' IS NOT TRUE (Option C).
An organ system can be defined as a set of organs that work together to perform specific functions.
The organs systems include
skeletal systemcardiovascular systemurinary systemreproductive systemmuscular systemskin systemrespiratory systemendocrine systemdigestive systemexcretory systemimmune systemnervous system.Each part of an organ system can be used by different systems.
For example, the large intestine is part of the digestive system and excretory system.
In conclusion, the statement 'each part of a system only has functions for that system' IS NOT TRUE (Option C).
Learn more in:
https://brainly.com/question/12825206
i searched up tim and moby fan art. my eyes did not like what i saw.
Answer:
do tell, what did you see?
Using the above graph, look at the solid blue trendline. What is that telling us?
Group of answer choices
A. The deer population is highly unstable.
B. The deer population is reduced after the introduction of wolves.
C. The deer population and the wolf population are the same.
D. The deer population changes with the seasons.
Answer: Which of the following statements regarding the human
population are TRUE? Select TWO.
The world's population of humans is
increasing.
In every country, the human population is
increasing
In some countries, the human population is
decreasing or staying the same.
The world's population of humans is
staying constant.
Explanation: Which of the following statements regarding the human
population are TRUE? Select TWO.
The world's population of humans is
increasing.
In every country, the human population is
increasing
In some countries, the human population is
decreasing or staying the same.
The world's population of humans is
staying constant.
Which of the following statements regarding the human
population are TRUE? Select TWO.
The world's population of humans is
increasing.
In every country, the human population is
increasing
In some countries, the human population is
decreasing or staying the same.
The world's population of humans is
staying constant.
What are the adaptations that Embryophytes have for life on land?
Answer:
Explanation:
"Plants have evolved several adaptations to life on land, including embryo retention, a cuticle, stomata, and vascular tissue."
Which of these describes a difference between viruses and cells?
Answer:
Cells reproduce independently, and viruses require a host cell to reproduce.
Explanation:
Viruses cannot reproduce themselves and require help from a host cell while cells can reproduce independently.
what are 15 things we get from plants?
Answer:
Fruits, vegetables, spices, cereals, Wood, Fibres, Cotton, perfumes, dyes, and most importantly medicines.
Explanation:
Plants play a major role in the preparation of several useful drugs and antibiotics.
3. Name two organelles in a plant cell that contain their own genetic material and
ribosome.
Answer:
Both, mitochondria and plastid possess their own genetic material and ribosomes.
Explanation:
Why do you think so many people are ignorant on the topic of overpopulation and it's effects? Please answer in one paragraph (: thanks
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:
Which is a difference between eukaryotic and prokaryotic cells? A. Nucleus, A. Cell membrane, C. Cell wall, D. Cillia
Answer:
Nucleus is a difference between eukaryotic and prokaryotic cells because nucleus is present in eukaryotes and nucleoid also called genophore / prochromosome is present in prokaryotes.
