Does bacteria and algae sense and respond to stimuli?
Yes, both bacteria and algae are capable of sensing and responding to stimuli in their environment, although the mechanisms and complexity of their responses may differ.
Bacteria have various sensory systems that allow them to detect and respond to stimuli such as light, temperature, chemicals, and nutrients. They possess different types of receptors, such as photoreceptors, chemoreceptors, and mechanoreceptors, that enable them to sense changes in their surroundings. For example, some bacteria can move towards or away from light (phototaxis) or chemical gradients (chemotaxis) by adjusting their flagella or altering their metabolism in response to specific cues.
Similarly, algae, as photosynthetic organisms, exhibit responses to environmental stimuli. They have photoreceptors, including pigments such as chlorophyll, which enable them to detect light intensity, wavelength, and direction. This enables algae to optimize their photosynthetic activity and orient themselves towards light sources. Algae can also respond to environmental factors like temperature, nutrients, pH levels, and mechanical forces.
To learn more about bacteria , here
brainly.com/question/15490180
#SPJ6
What would be a sentence of Catalyst for biology
Enzymes in biology are biological catalysts that increase the rate of chemical reactions in living organisms.
Explanation:A sentence that describes a catalyst in biology is: Enzymes are biological catalysts that increase the rate of chemical reactions in living organisms. Enzymes are proteins or RNA molecules that lower the activation energy needed for a reaction to occur, allowing the reaction to happen more quickly. They do this by providing an alternate route for the reaction and improving the probability of proper orientation.
Immediately after its stored atp is consumed, a working muscle relies on ________ to regenerate atp for contraction. anaerobic glycolysis direct phosphorylation of adp by creatine phosphate aerobic respiration all three energy systems in equal amounts
A blood cholesterol level of 160 mg per 100 ml is indicative of what condition?
most enzymes are proteins but not all proteins are enzymes true or false
whats a stars life cycle in order
Chloroplasts are found in __________. chloroplasts are found in __________. neither plant cells nor animal cells animal cells only both plant cells and animal cells plant cells and some protists
Answer:
The correct answer about this question is PLANT CELLS AND SOME PROTISTS.
Explanation:
Chloroplasts are organelles present in the cells of plants and other photosynthetic organisms such as algae. Algae belong to the Protista kingdom. However, in the protist kingdom there are also protozoa, which do not have the presence of chloroplasts, as they are heterotrophic beings, that is, they do not produce their food and do not have chloroplasts. Unlike algae, which present chloroplasts and perform photosynthesis.
Main characteristics of chloroplasts:
- They are green in color due to the presence of chlorophyll. This compound wrote before is one of the responsible for photosynthesis.
- They are limited by a kind of envelope formed by two lipoprotein membranes.
- It has inside it a liquid known as stroma.
- They have DNA, RNA and ribosomes. Thus, they have the ability to perform the process of protein synthesis and multiply.
Give a scenario where a cell may need to perform a form of exocytosis?
Exocytosis is the process by which cells expel important substances, like hormones or neurotransmitters, out of the cell. This is evidenced in pancreatic beta cells that use exocytosis to release insulin into the bloodstream or neurons releasing neurotransmitters to propagate signals.
Explanation:Exocytosis is a process a cell may use to export substances out of the cell through the merging of a vesicle with the cell membrane. A common scenario in which a cell would need to perform exocytosis is the secretion of hormones or neurotransmitters from specialized cells.
For example, in our bodies, cells in the pancreas, known as beta cells, use exocytosis to release insulin - a hormone that regulates glucose levels in the bloodstream. In this process, insulin is first packaged into vesicles within the beta cell. When the body's blood sugar level rises, these vesicles move towards the cell membrane and bind with it, releasing the insulin into the bloodstream. This is a perfect example of how exocytosis works in the endocrine system.
Another example could be from the nervous system where neuron cells use exocytosis to propagate signals down the synapse by releasing neurotransmitters, another substance that directs cell activity.
Learn more about Exocytosis here:https://brainly.com/question/36655495
#SPJ12
What is alcohol made of besides of ethanol?
a rock is dropped into 15mL of water. it displaces 10mL. the volume of the rock is????
Answer: 10mL
Explanation:
HELP ASAP
Nerve pathways that are used often receive electrical insulators around the axons to make nerve transmission faster and easier. The insulation is called the ____________.
Myelin sheath
Explanation;Neurons are often surrounded by a myelin sheath to improve the speed of their communication, and to keep their electrical charges from shorting out with other neurons. Myelination of neurons by myelin sheath acts as an insulation to the neurons and this facilitates the transmission of electrical signals or impulses.Myelin sheath is a fatty layer tissue that surrounds the axon of a neuron and acts as an insulator and also allows faster transmission of electrical signals.Match the proper definition with the correct category: evolution, mutation, genetic drift, or migration.
What part of a dna nucleotide carries genetic information?
a. the phosphate
b. the sugar
c. the base
d. the amino acid
e. the hydrogen bond?
The nurse is assisting a primigravid on calculating the due date of her baby using naegele rule. the most important information provided by the mother is:
The nurse is
assisting a primigravid on calculating the due date of her baby using Naegele’s
rule. The most important information provided by the mother is Expected Date of
Birth. Naegele’s rule is used in Calculating
Estimated/Expected delivery date (EDD). The equation is Last Mentrual
Period minus 3 months plus 7 days plus 1 year.
(Should be approx. 280 days from LMP)
What type of hearing loss is characterized by a problem with the organ of corti or the auditory nerve?
Evidence suggests that the addictiveness of some drugs, including cocaine and nicotine, is related to increases in the activity of which neurotransmitter?.
Some drugs fundamentally influence one neurotransmitter or class of neurotransmitters. For instance, prescription opioids and heroin deliver impacts that are like (however more articulated than) those created by the neurotransmitters endorphin and enkephalin: expanded absence of pain, reduced readiness, and low breath. Different medications upset more than one sort of neurotransmitter. Cocaine, for instance, joins to structures that manage dopamine, prompting increments in dopamine activity and creating euphoria; it likewise delivers changes in norepinephrine and glutamate frameworks that cause stimulant impacts.
The synthesis of an rna molecule from a dna template strand is
Why is pruning synapses and losing gray matter important for brain development?
19 crossing over is one of the most important events in meiosis because
The crossing over process is considered to be the most important event when it comes to the process of meiosis because the crossing over in the meiosis enables them to produce new arrays of alleles in which is found in the chromosomes.
Which movement results after the contraction of the serratus anterior muscle?
The serratus anterior is a muscle located on the thorax which, upon contraction, aids in the protraction of the scapula (moving it laterally and forward), essentially giving our arm a wider range of forward motion.
Explanation:The serratus anterior is a large, flat muscle situated in the thorax region of the body. This muscle originates from the surface of the 1st to 8th ribs at the side of the chest and inserts along the entire anterior length of the medial border of the scapula. The serratus anterior plays a crucial role in the movements of the upper limb, specifically the scapula, to which it is attached.
Upon contraction, the serratus anterior aids in the process of protraction of the scapula. Protraction of the scapula moves it laterally and forward, keeping it close to the thoracic wall. This action contributes to our ability to reach and push forward, for example, during a punching motion. It essentially gives our arm a wider range of forward motion. The serratus anterior also plays a significant role in the upward rotation, abduction, and stabilization of the scapula.
The functions of the serratus anterior muscle are instrumental for the movements and stabilization of the upper limb, hence, contributing to the successful execution of numerous daily activities and physical exercises.
Learn more about serratus anterior muscle here:https://brainly.com/question/36105374
#SPJ12
Explain why fungi cannot be stained by using stains that are commonly used to stain bacteria
Assume that a mutation occurs in a human population that produces a horn (like a unicorn) in the middle of the forehead. further assume that the horn is inherited as a y-linked trait in humans. a man with the horn has a daughter who has a son with a man who has lacks the horn. what is the probability that the horned man's grandson also has a horn?
The amount of energy needed for a reaction to take place is the activation energy. Enzymes can lower the activation energy of a chemical reaction. Which of the following describes a way that this could happen?
Question 9 options:
The enzyme distributes ATP to cells and then is destroyed.
More substrate is added by the enzyme.
Molecules can be brought together so they will bond more easily.
The enzyme separates molecules from each other.
Save
Answer:
The enzyme separates molecules from each other.
Explanation:
Activation energy is an amount of energy that "pushes" the enzyme reaction to take place. The higher the value of this energy, the slower the enzymatic reaction will take place, so some enzymes can cause the activation energy to decrease, in order to accelerate the enzymatic process.
Generally, enzymes decrease the activation energy by modifying the physical structure of the molecule, separating some parts, or leaving the bonds weakened so that it is possible to break that molecule more easily. Enzymes can also participate in the reaction to reduce the activation energy.
The tubes that carry urine from the kidneys to the bladder are the
The three major components of the cytoplasm are the ________.
The three main components of the cytoplasm are the cytosol, organelles, and inclusions. Organelles are specialized structures, while inclusions are non-functional components.
Explanation:The three major components of the cytoplasm are the cytosol, organelles, and inclusions. The cytosol is a semi-fluid substance that encompasses the organelles and inclusions. Organelles are specialized structures within the cell that perform various functions such as energy production, protein synthesis, and waste disposal. Inclusions are non-functional components within the cytoplasm, including stored nutrients, secretory products, and pigment granules.
Learn more about Cytoplasm here:https://brainly.com/question/33304140
#SPJ11
Rewrite this hypothesis so that its more useful when experimenting : bean plants will grow more slowly when exposed to acid rain
A mixture of mineral grains and rock fragments organic material water and gas that can support plant growth is called
Name the main groups of bones that form the axial skeleton
Final answer:
The main groups of bones that form the axial skeleton are the skull, vertebral column, and thoracic cage. The axial skeleton consists of the skull, ossicles of the middle ear, hyoid bone, vertebral column, and thoracic cage, forming the central axis of the body and providing support and protection.
Explanation:
The main groups of bones that form the axial skeleton include the bones of the skull, the ossicles of the middle ear, the hyoid bone of the throat, the vertebral column (which includes the spine), and the thoracic cage (which includes the rib cage). The axial skeleton is central to the body's structure, providing support and protection for the brain, spinal cord, and organs within the chest.
How do single celled organisms, like paramecium, adapt to living in a hypotonic environment?
Osmoregulation is a process through which do single celled organisms, like paramecium, adapt to living in a hypotonic environment.
Through a process known as osmoregulation, single-celled organisms like Paramecium adjust to life in a hypotonic environment. Osmoregulation is the control of the concentrations of water and solutes within an organism in order to preserve internal equilibrium or homeostasis.
In a hypotonic setting, the surrounding solution's solute concentration is lower than that of the Paramecium cell's cytoplasm. As a result, a concentration gradient is created where water seeks to enter the cell, possibly resulting in cell rupture or excessive swelling.
Contractile vacuoles are specialized structures seen in Paramecium. These vacuoles periodically contract, discharging the stored water from the cell, collecting extra water that enters the cell through osmosis. Through this procedure, excessive swelling is prevented, and the water balance is controlled.
Hence, osmoregulation is a process through which do single celled organisms, like paramecium, adapt to living in a hypotonic environment.
To learn more about Osmoregulation, here:
https://brainly.com/question/28262272
#SPJ4
The four types of warrantless searches are (1) searches incident to an arrest, (2) searches conducted under exigent circumstances, (3) searches involving automobiles, and (4) searches based on the "plain view" doctrine.. true or false
"The statement is true.
The four types of warrantless searches that are generally recognized by the law are indeed:
1. Searches incident to an arrest: These are searches conducted on the person being arrested and the immediate area around them, without a warrant, at the time of the arrest. The rationale behind this exception is to ensure the safety of the officers and to prevent the destruction of evidence.
2. Searches conducted under exigent circumstances: This exception applies when there is an urgent need to act to prevent harm to individuals, the destruction of evidence, or the escape of a suspect. Examples include a hot pursuit of a fleeing felon or a situation where evidence is in imminent danger of being destroyed.
3. Searches involving automobiles: The automobile exception allows for a warrantless search of a vehicle if there is probable cause to believe that it contains evidence of a crime. This exception is based on the reduced expectation of privacy in a vehicle and the inherent mobility of vehicles which could lead to the loss of evidence.
4. Searches based on the "plain view" doctrine: If an officer is lawfully present in a location and observes evidence or contraband in plain view, they may seize it without a warrant. The item must be immediately apparent as evidence or contraband, and the officer must have a lawful right to access the object's location.
These exceptions to the warrant requirement are subject to certain legal tests and limitations, and their applicability can vary depending on the specific circumstances of each case."