(vii) All the activities of a cell is controlled by?​

Answers

Answer 1

Answer:

nucleus

Explanation:

The nucleus controls all of the cell's activities, such as growth and metabolism, using the DNA's genetic information. Within the nucleus is a smaller structure called the nucleolus, which houses the RNA (ribonucleic acid).

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Related Questions

The main goal of photosynthesis is to produce what?

Answers

Answer:

To spread carbon dioxide and oxygen.

Explanation:

Plants produce carbon dioxide and oxygen. This is called photosynthesis.

5. It is the process of separating coconut pulp (sapal) from coconut milk.
A on stallization B. disollation C. filtration
D. flotation​

Answers

Answer:

the answer is c

Explanation:

filtration

Which of the following help to break down proteins?

Answers

Answer:

b. Pepsin and trysin

Explanation: is correct

B) pepsin and trysin

Chlorophyll appears green because it…?

Answers

Answer:

Chlorophyll gives plants their green color because it does not absorb the green wavelengths of white light. That particular light wavelength is reflected from the plant, so it appears green. Plants that use photosynthesis to make their own food are called autotrophs.

Answer:

A. absorbs green light

B. reflects green light

C. emits green light

ANSWER: B. reflects green light

Explanation:

our eyes can only see what objects reflect, so if it's appearing green then obviously it's reflecting the green light.

The process of glycolysis produces 4 ATP total, but we say that the net ATP production is 2 ATP. What happened to the two other ATP molecules

Answers

The process of glycolysis requires two ATP molecules to get started.

Ciliated ependymal cells: A) help form the blood-brain barrier. B) circulate cerebrospinal fluid. C) form myelin in the brain and spinal cord. D) serve as wandering phagocytes during brain injury.

Answers

Ciliated ependymal cells: circulate cerebrospinal fluid.

Ependymal cells are a type of epithelial cell that is associated with the cavities of the body through which the cerebrospinal fluid circulates.

They are part of glial cells, which share space with neurons in the nervous system.

They create the membranes that keep cerebrospinal fluid circulating through the ependymal canal of the spinal cord and the cerebral ventricles.

For this, the ciliated structure that these cells present is essential for a correct movement of the cerebrospinal fluid, preventing it from spilling through other tissues and passing to areas of the body where it should not be.

The cilia move rhythmically creating tiny currents for fluid to flow through the central nervous system.

A small fraction of highly specialized and modified ependymal cells, called choroidal cells, are responsible for generating this essential fluid.

Therefore, we can conclude that ciliated ependymal cells circulate cerebrospinal fluid.

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What molecules are required for the Calvin cycle? (3 answers)

Answers

Answer:After the energy from the sun is converted and packaged into ATP and NADPH, the cell has the fuel needed to build food in the form of carbohydrate molecules. The carbohydrate molecules made will have a backbone of carbon atoms. Where does the carbon come from? The carbon atoms used to build carbohydrate molecules comes from carbon dioxide, the gas that animals exhale with each breath. The Calvin cycle is the term used for the reactions of photosynthesis that use the energy stored by the light-dependent reactions to form glucose and other carbohydrate molecules.

Explanation:The Interworkings of the Calvin Cycle

In plants, carbon dioxide (CO2) enters the chloroplast through the stomata and diffuses into the stroma of the chloroplast—the site of the Calvin cycle reactions where sugar is synthesized. The reactions are named after the scientist who discovered them, and reference the fact that the reactions function as a cycle. Others call it the Calvin-Benson cycle to include the name of another scientist involved in its discovery (Figure 5.14).

This illustration shows that ATP and NADPH produced in the light reactions are used in the Calvin cycle to make sugar.

Answer:

CO2, ATP, and NADPH

Can a brotha get a brainliest? :)

the principal mineralocorticoid is _____________ that helps regulate levels of _____________ in the blood and body fluids.

Answers

Answer:

The principal mineralocorticoid is aldosterone that helps regulate levels of sodium and potassium ions in the blood and body fluids.

receptors for neurotransmitters are of primary functional importance in assuring one-way synaptic transmission because they are mostly found on the _____.

Answers

Answer:

The axonal membrane (place as brainliest so others know its correct)

Receptors for neurotransmitters are of primary functional importance in assuring one-way synaptic transmission because they are mostly found on the Axonal membrane.

What are Neurotransmitters?

Neurotransmitters may be defined as the type of chemical substances that are correspondingly liberated at the end of a nerve fiber by the arrival of a nerve impulse and, by diffusing across the synapse or junction. They are released in the location known as the synaptic cleft.

The receptors of these neurotransmitters are present in the plasma membrane of postsynaptic cells which selectively bind the transmitter. They are integral membrane glycoproteins with multiple transmembrane segments.

Some examples of neurotransmitters may include serotonin, GABA, dopamine, acetylcholine, etc.

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Which nucleic acid moves the code for protein synthesis from the nucleus to the ribosomes?

A. dRNA

B. tRNA

C. rRNA

D. mRNA

Answers

Answer:

mRNA

Explanation:

enjoy mate

Answer:mRNA

Explanation: Just had this unit.

white rami carry _________ neurons, while gray rami carry _________ neurons.

Answers

Answer: myelinated preganglionic, unmyelinated postganglionic

Explanation:

Just took the test

Describe how ions, water and sugar are obtained and transported
through plants. In your answer you should refer to materials moving upwards in a plant and to
materials moving downwards in a plant

Answers

Answer:

Explanation:

Water moves through the xylem in a stream called a transpiration stream, up to the leaves of the plant. Sugar is made during the process of photosynthesis. Unlike water and ions, it travels through the plant via the phloem, moving up and down through the plant.

Which of the following sentences state a significant conclusion that Gregor Mendel drew from his experiments with pea plants? Traits are inherited in discrete units and are not the result of "blending." Genes are composed of DNA. Recessive genes occur more frequently in the F1 generation than do dominant ones. There is considerable genetic variation in garden peas.

Answers

Mendel concluded that the alternative forms of each trait are coded by discrete factors, which were called alleles that combine in pairs to express the trait. Traits are inherited in discrete units and are not the result of "blending."

------------------------

After making many crosses that involved different traits -such as plant height, or flower colors-, Mendel observed that, per trait, the F1 only expressed one of the alternative forms, while de other one disappeared.

Mendel named dominant the expressed variant.

Mendel then let these new plants auto pollinate and observed the results in the second generation, F2.

He saw that the variants that had previously disappeared among the F1, reappeared again. Both alternatives for each trait were present in the F2.

Mendel named recessive the second alternative variant.

Mendel explained his results by arguing that discrete factors were responsible for these phenotypes.

These factors should have been present in the F1 in pairs.

One of them came from one parental plant, and the other factor came from the other plant.

These factors separated again during sex cells formation, producing two types of gametes, each with only one factor.

Mendel conclusion about his experiments was that per trait -flower color of plant length-, each plant had a pair of factors -which he named alleles-, and that each factor coded for one of the alternative forms of the traits -white or purple, tall or short-.

He thought that alleles separate -segregate- during the process of gamete formation.

The First Mendel's Law is the first conclusion he took about his experiments and is known as the segregation principle.

 

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I really need help this is carbon cycle help me label it

Answers

Answer:

1.) Photosynthesis

2.) Respiration by plants

3.) Feeding

4.) Death and waste

5.) Respiration by animals

6.) Decomposition

7.) No Decomposition

8.) Combustion

Hope this helps!

Edpuzzle: Fermentation - Amoeba Sisters

Answers

Answer:

=amoeba sisters

Explanation:

Basal bodies are most closely associated with which of the following cell components?.

Answers

microtubule roots and fibres

What is the difference between a species and a population?

Answers

Answer:

species is the type of organism population is the amount of said organism

Explanation:

Species are same type of organisms with similar characteristics, whereas a population is a group organisms in one particular area

In the GAL gene system, ________ are cis-acting regulatory elements, and the ________ protein is a trans-acting regulatory protein.

Answers

Answer:

UASG; Gal4

Explanation:

help plsss
Explain the effect of viruses on living organisms.​

Answers

Answer:

Viruses are microscopic biological agents that invade living hosts and infect their bodies by reproducing within their cell tissue. Viruses are tiny infectious agents that rely on living cells to multiply. They may use an animal, plant, or bacteria host to survive and reproduce

Explain why it is not accurate to call a virus that kills bacteria a “bacteria eater."

Answers

Answer:

When viruses attack cells, they release genetic material that is coded to multiply, then the cells divide and more viruses are spread, the viruses do not eat.

Explanation:

How is humus formed?Explain.​

Answers

Answer:

Humus is formed when organic material (such as leaves, dead animals etc.) is degraded by a combination of fungi, bacteria, microbes and other animals (earthworms for example) that reside in the soil.

Explanation:

Answer:

Hey mate....

Explanation:

This is ur answer...

Humus is dark, organic material that forms in soil when plant and animal matter decays. When plants drop leaves, twigs, and other material to the ground, it piles up. The thick brown or black substance that remains after most of the organic litter has decomposed is called humus.

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what parts of a cell are most likely involved with inherited traits?

Answers

Chromosomes are most likely involved with inherited traits.

What are Chromosomes?

A chromosome is defined as the long DNA molecule which contains part or all of an organism's genetic material. Most chromosomes consist of very long thin DNA fibers coated with packaging proteins where the most important of these proteins in eukaryotic cells are histones.

These structures are found in the nucleus of cells which contain long pieces of DNA. DNA is the material that holds genes and is the building block of the human body.

Chromosomes also contain proteins which help the DNA stay in the proper shape.

Thus, Chromosomes are most likely involved with inherited traits.

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Which molecule is a product of respiration?
A. carbon dioxide
B. protein
C. glucose
D. oxygen

Answers

Answer:

A

Explanation:

respiration is the process by which living organisms(animals) take in oxygen a d give out carbon dioxide. this is not used for plants because plants take in carbon dioxide and give out oxygen

spermiogenesis begins with a ________ and ends with a ________.

Answers

Answer:

Answer:

germ cell and four gametes

Explanation:

Spermiogenesis begins with a  germ cell   and ends with    four gametes.

What organism belongs to the Prokaryotic domain of life and it comes in three different
shapes, such as cocci, rod, and spiral?

Answers

Answer:

eubacteria

Explanation:

I took the quiz :)

The organisms that belong to the Prokaryotic domain of life and it comes in three different shapes, such as cocci, rods, and spirals are known as Eubacteria.

What do you mean by the Prokaryotic domain?

The prokaryotic domain may be characterized as the kingdom of Prokaryotes is significantly made up of two domains namely, Archaea and Bacteria. These eubacteria are classified under the domain of bacteria which is represented by the relation based on the DNA experimental approach.

According to the context of this question, there are mainly three types of eubacteria commonly found. They are round (coccus), rod-like (bacillus), comma-shaped (vibrio), or spiral. All these types of different body plans, structures, and functions with respect to their morphology.

Therefore, eubacterium is a type of organism that belongs to the Prokaryotic domain of life and it comes in three different shapes, such as cocci, rod, and spiral.

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what is a spygnomanometer ? ​

Answers

Answer:

an instrument for measuring blood pressure

Explanation:

an instrument for measuring blood pressure typically consisting of an inflatable rubber cuff which is applied to the arm and connected to a column of mercury next to a graduated scale, enabling the determination of systolic and diastolic blood pressure by increasing and gradually releasing the pressure in the cuff.

6. Challenge: Based on the weathering patterns, guess the rock type shown in each photo.


Answers

What are the photos?

DNA molecules separate into single strands which are then used to construct two identical strands of DNA this process ensures genetic

A)consistency
B)variability
C)diversity
D)reduction

Answers

Answer: A)consistency

Explanation:

Why is the muscular system needed for respiration to occur in the human body?

Answers

Answer:

Explanation:

the muscular system is needed for respiration to occur in the human body because the diaphragm is a muscle iteslf and the diaphragm inflates the lungs

Sperm cells have a whip like ____ to move them through a liquid.

Answers

Answer:

tail

Explanation:

Answer:

flagellum

Explanation:

a slender threadlike structure, especially a microscopic appendage that enables many protozoa, bacteria, spermatozoa.

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