Cell Biology Questions
Asked by Users

Ask or answer Cell Biology related questions here.

See what users of Biology Questions and Answers have asked by clicking on each question link below. You can also post relevant questions on this subject here.

Note that these questions are user's Cell Biology questions, they are not the main content of the site that presents the entire Biology by logical sequences of original questions and answers. If you want to study those logical questions and answers, please, go to our Biology syllabus here.

Have a good learning!

What Others Have Asked

Click below to see questions from other visitors to this page.

Aerobic means... 
a. need oxygen b. afraid of water c. doesnt need oxygen d. likes water Study Cell Respiration .

Before a cell enters mitosis, all of the following events must occur during interphase EXCEPT? 
A. nuclei are divided B. the cell passes through a series of 3 checkpoints C. the cell grows in size D. cellular organelles are synthesized Study …

Despite differences in size and shape, at some point all cells have DNA and a what? 
choices: a. cell wall b. cell membrane c. mitochondrian d. nucleus Read Biology Questions .

Examples of endosmosis and exosmosis 
Study Cell Membrane .

1. Does cyclosis occur in the same direction in all cells? 
Please help me in this biology questions: 2. What are the practical advantages of cyclosis to the cells of the leaf? 3. How many layers thick is …

What funtion do mitochondria perform? 
Click on post comments to answer. For studying more than 1800 Bioloqy questions correctly answered, download our ebook .

Why mitochondria is called a semi autonomous organelle? 
Click on post comments to answer. For studying more than 1800 Bioloqy questions correctly answered, download our ebook.

Which pair is not related?  
A. cells and tissue B. nucleus and DNA C. cell wall and plants D. chloroplast and animals

Who discovered mitochondria? 
a.de Duve b.palade c.kolliker d.camillo golgi

What is the optimum pH for enzyme activity ? 
Click on post comments to answer.

Which of the following is not a cell organelle? 
A.Mitochondrion B.Cytoplasm C.Endoplasmic reticulum D.Lysosome Click on post comments to answer.

State the origin and fate of the following molecules involved in photosynthesis: 
(a) Carbon dioxide (b) Oxygen (c) Hydrogen Click on post comments to answer.

What is the structure of the chloroplast? 
Click on post comments to answer.

"The diffusion of hydrogen ions through ATP synthase which subsequently causes ATP synthase to combine phosphate ion with ADP" defines which of the following words? 
1.Chemiosmosis 2.Citric Acid Cycle (a.k.a. Krebs Cycle) 3.ATP Synthase 4.Electron Transport Chain (ETC) 5.Cytochromes Click on post comments …

When a cell releases a signal molecule into the environment and a number of cells in the immediate vicinity respond, this type of signaling is called? 
A: Paracrine Signaling B: Endocrine Signaling C: Autocrine Signaling D: Typical Signaling E: Synaptic Signaling Click on post comments to answer. …

if a cell has completed the first meiotic division and is beginning meiosis II, which of the following is an appropriate description of its contents? 
A) it has half the amount of DNA as the cell that began meiosis B) it has the same number of chromosomes but each of them has different alleles than another …

What is a cell membrane? 
Click on post comments to answer.

What are the parts that all cells have? 
Click on post comments to answer.

Do eukaryotic cells have chromosomes in the cytoplasm? 
Click on post comments to answers.

What does the rate at which materials enter and leave the cell depend on? 
Is it volume, weight or surface area? Click on post comments to answer.

Vesicles are generally short-lived and are formed and recycled as needed. True or false? 
Vesicles are generally short-lived and are formed and recycled as needed. Click on post comments to answer.

What happens in cellular repiration when there is no oxygen available? 
The cell does not function properly and eventually dies.

How different are the amount of energy stored in ATP and glucose? 
These two are alike because they are both stored during photosynthesis.

What is the most common cell known? 
What is the most common cell known?

What is a ribosome? 
It is in the cell.

Does pyrenoid contain proteins and starch?  
Well they may contain both of them.

What is the most favourite food of hydra? 
Study Cnidarians - Study All About Them .

Does science know the structures that recognize where vesicles from Golgi apparatus go to? 
Does science know the structures that recognize which vesicles from Golgi apparatus where to go?(to go to membrane and do exocytosis OR stay in cell and …

What is the 25th cell? 
This is in relation to petrov's cellular regeneration.

Does mitochondria aid protein synthesis? 
Study Protein Synthesis Made Easy .

Extending from the centrioles are? 
A. spindles that form microtububles B. microtubules that form spindles C. actin and myosin that form muscle fibers D. muscle fibers that form actin …

The main function of the pentose phosphate pathway is to: 
A. give the cell an alternative pathway should glycolysis fail. B. provide a mechanism for the utilization of the carbon skeletons of excess amino acids. …

What are the main stages of protein synthesis? 
Read Protein Synthesis Made Easy .

A protein is composed of 439 amino acids... 
a) How many codons were read in the synthesis of this protein? b) How many nucleotides made up the processed mRNA used in the synthesis of this protein? …

If you inject cytochrome c in a normal cell and a cell without bax, what will happen? 
-only the normal cells die -both die, but the normal cells die faster then the others -both cells die at the same speed Read Cell Respiration .

What is a cell? 
Study Cell Biology Review .

Name the three major types of polypeptide that are produced, and for each say where their synthesis takes place in the eukaryotic cell. 
Might be in transcription and later in translation, but I'm not sure which polypeptides are produced. Study Protein Synthesis Made Easy .

How does photosynthesis happen? 
Study Photosynthesis Process - The Easiest Online Review .

What is meant by a limiting factor of photosynthesis? 
it's a factor of photosynthesis that has reduced and cause the rate of photosynthesis to slow down provided the determining factor is increasing. Study …

What would you predict about the cellular energy available to organisms that carry out fermentation? 
Recall that two molecules of ATP are formed during glycolysis. Neither fermentation process creates any more ATP. Study Cell Respiration .

What are the functions of a cell? 
Study Cell Biology Review .

Explain how glucose transport occurs in a cell. 
Though communicating bumps and ridges by glycoproteins and glycolipids? Study Cell Biology Review .

WHATS ANOTHER NAME FOR THE SPLITTING OF WATER DURING LIGHT REACTION? 
Study Photosynthesis Process - The Easiest Online Review .

Determine the proportion of the time cells such as onion cells and fish cells spend in each phase of the cell cylce 
U need to look at a slide of an onion root tip and a prepared slide of a fish blastulla. Go over each phase of mitosis.You will need to determine how many …

How do you say that oxygen is liberated from water in photosynthesis, but the reaction doesn't satisfy this? 
There are only six oxygen involed in water in a balanced reaction but there are twelve oxygen atoms released during the process. Study Photosynthesis …

What is photosynthesis? 
It is a chemical process where by green plants manufacture their own food from inorganic compounds such as carbondioxide and water using energy from the …

How does the pH level affect mitosis? 
Read Enzyme Activity .

What is the structure of nucleus? 
Study Cell Nucleus - Definition, Structure and Function .

Which is found only in a eukaryotic cell? 
Ribosome is found only in a eukaryotic cell? Study Cell Structure .

What is fermentation? 
Study Cell Respiration .

Which cell organelle makes and stores lipids? 
Endoplasmic reticulum? Read Cell Structure .

What are the seven steps of the light-dependent reactions? 
Study Photosynthesis Process - The Easiest Online Review .

Which part of cell stores digestive enzymes? 
The part of cell that stores digestive enzymes is lysosomes... Study Secretion - Biology Questions and Answers Review .

What are light reactions? 
speed up photosynthesis

How does a cytoskeleton work? 
How does it function? Study Cytoskeleton .

You were in the process of dicing sweet potatoes to make your favorite chicken curry when you accidentally cut your finger. Place in order the following events. 
1.The cell starts to grow and produce nucleotides, a cyclin, and the E2F transcription factor. 2.The cell continues to grow. Tubulin, kinesin, and histones …

Why do redblood cells not carry out the link reaction or Krebs cycle? 
Red bloodcells are also known as erithrocytes. Study Blood Questions .

What do inhibitors do to enzyme activity? 
They either slow down or stop enzyme activity (opposite of an activator). Study Enzyme Activity .

What is an example of photosynthesis? 
Study Photosynthesis Process - The Easiest Online Review .

How does glycolysis result in a net gain of two ATP molecules? 
Glycolysis is also known as "splitting sugars". Study Carbohydrates Properties Review from Biology Questions and Answers .

How do red blood cells and plant cells act differently when placed in hypotonic medium? 
Would a red blood cell act in the way as a plant cell placed in a hypotonic medium? Why or why not? Is a hypotonic solution the same thing as a hypotonic …

Could meiosis take place in a 3n or a 4n cell? Why? 
A cell with 3 sets of chromosomes is said to be triploid, 3n. A cell with 4 sets of chromosomes is said to be tetraploid, 4n. Study Cell Division . …

Which cellular organelles work together to secrete mucus? 
Read Secretion - Biology Questions and Answers Review .

What are the functions of Golgi apparatus?? 
Answer on Cell Structure .

How photosynthetic cells use the energy in ATP to create carbohydrates? 
Carbon dioxide G3P NADPH RuBP Read also: Photosynthesis Process - The Easiest Online Review

What is the currency of the cell? 
Click on post comments to answer. Read our review pages on Cell Biology.

Is water the medium for cell organelles? 
Click on post comments to answer. Read our review pages on Cell Biology.

Hi, I quite understand the mechanism of telomere replication, but there are two main concepts that I haven't yet understood.  
Please try your best to explain them in a methodical, clear manner as it was hard to understand them from Wikipedia and other sources. 1) why is there …

What modifications would mitochondria have to undergo to become chloroplast? 
Modification of one organelle to become another. Click on post comments to answer.

Who discovered the cell nucleus? 
Robert brown? Click on post comments to answer.

What is meant by the cells being in G0 phase of the cell cycle? 
During mitotic anaphase is there separation of homologous chromosomes or separation of identical chromatids?

What is the difference between animal and plant cell? 
Click on post comments to answer. For studying more than 1800 Bioloqy questions correctly answered, download our ebook .

What are the chiasms of homologous chromosomes seen in prophase I? 
Intersection of two tracts in the form of X? Click on post comments to answer. For studying more than 1800 Bioloqy questions correctly answered, …

Which are all the types of splicing? 
I just want to know what are the types of splicing in RNA?

What is mitotic spindle? 
What are mitotic spindles and what do they do? What if the cell did not have mitotic spindle?

Explain chemical modification of cytoskeletal elements. 
chemical modification of cytoskeletal elements.

The overall reaction for the aerobic respiration of glucose is summarized as? 
C6H12O6 + 602+6H2O = 6CO2 +12H2O + energy C4H12o4+6o2+6H2O = 6CO2+ATP+energy

How are lysosomes important for remodelling of tissues? 
Example: Tadpole loses its tail during metamorphosis?

Which stage of mitosis is characterized by the arrival of the daughter chromosomes to the poles? 
WHAT STAGE OF MITOSIS IS CHARACTERIZED BY THE ARRIVAL OF THE DAUGHTER CHROMOSOMES TO THE POLES

Which is the longest stage of cell division? 
cell division longest stage

When is the breaking of lysosome advantageous? 
Because when it breaks down more cells are formed?

Describe the structure of cell membrane using fluid mosaic model. 
A membrane is a fluid structure with protein embedded or attached to a double layer of phospholipids. Plasma membranes must be a phospholipid bilayer.

Whats the dynamic nature of the cell? 
That it keeps the molecules moving and functioning.

What is the difference between the eukaryotic and prokaryotic cell?  
What is the different between eukaryoticadnd prokaryotic cell?

Who firstly described the cell theory? 
"Who discovered cell theory"?

Why are membranes described as' proteins in a sea of lipids'? 
The cell membrane is often described as "PROTEINS IN A SEA OF LIPIDS".

What is ATP? 
Molecule?

Do all cells look the same? 
No. If you are comparing animal cells with plant cells, there will be a difference. For example, Plants have Cell wall and Animal's Cell does not. This …

what is the "power house" of the cell? 
The mitochondria! It is also where respiration takes place in the cell.

Describe the process of energy production by aerobic respiration from biochemical and cellular levels to anatomical and physiological levels within the human organism. 
Adenosine triphosphate (ATP) is the energy currency of life. It is the high-energy molecule that stores the energy within the body needed for all body …

How do the differences in mitosis and meiosis affect the end result? 
How do the different phases in mitosis and meiosis affect the end result?

What is the type of cross link in a tertiary structure? 
Attraction hydrogen bond, ionic bonding, a hydrogen attraction, or hydrophobic.

During the Krebs cycle why carbon dioxide is released but not carbon? 
During Krebs cycle its main aim is to release carbon; then it can release only carbon but that doesn't happen. It releases carbon dioxide. Why?

What are the similar features found in the cells of bacteria, fungi and plants? 
What are the similar features sound in the cells of bacteria, fungi and plants?

What are three examples of protein synthesis? 
And how can the enviroment affect the phenotype?

What is the function of mRNA? 
What is the function of mRNA?

What relates cell reproduction to the replacement of the skin cells? 
What relates cell reproduction to the replacement of the skin cell?

Enzyme activity does not depend on pH? 
1. Stop codons are present on: a)The coding strand of DNA, where they signal the end of transcription b)The template strand of DNA, where they …

What is the chemical process of photosynthesis and what does it produce? 
6 CO2+6H2O+LIGHT ---> C6H12O6+6 O2 Click on post comments to answer.

What happen to ribosomes after protein synthesis? 
Ribosomes are separated and lie in the cytoplasm as separated sub units... Click on post comments to answer.

When a cell divides during the process of cleavage, each daughter cell, compared with the parents cell, has? 
more cytoplasm? less cytoplasm? more chromosomes? less chromosomes? Click on post comments to answer.

What type of cells result from mitosis?  
Click on post comments to answer.

What is the Krebs cycle? 
It has to do with photosynthesis or cellular respiration, but it is complicated. Click on post comments to answer.

Does protein synthesis occur in mitochondria? 
Click on post comments to answer.

How do the temperature and pH affect cellular activities? 
Click on post comments to answer.

What is the division of cytoplasm called? 
Click on post comments to answer.

In what region of the cells is the stain darkest? Why? 
Click on post comments to answer.

Does interphase happen again after meiosis? 
Click on post comments to answer.

The structure of the cell membrane is best described as what? 
A phospholipid bilayer with many proteins embedded in it. Click on post comments to answer.

What is the mass of typical cell? 
Click on post comments to answer.

Which organelles are involved in cell division? 
Click on post comments to answer.

What is the inorganic molecule that oxygen comes from in photosynthesis? 
Water or carbon dioxide? Click on post comments to answer.

What is meiosis? 
Click on post comments to answer.

What is the cell nucleus? 
A nucleus is what controls all the DNA in a cell. Click on post comments to answer.

Which kind of cell is most numerous? 
Click on post comments to answer.

The following procress occurs at the beginning of glycolysis, in respiration... 
ATP -> ADP + P -> Glucose -> Glucose Phosphate For what purpose does this reaction take place? Click on post comments to answer.

What prompts cells to divide? 
Click on post comments to answer.

how does pH level affect cellular respiration? 
Click on post comments to answer.

Describe what ATP is and its role in the cell. 
Click on post comments to answer.

What is the function of a cell membrane? 
Click on post comments to answer.

What does photosynthesis convert H2O and CO2 into? 
Click on post comments to answer.

What products does a cell get out of glycolysis? 
I'm kind of confused with this, so please help me! Thank you! Click on post comments to answer.

Who reads our DNA? Is that something material? 
Apart from reading who is making the DNA of plants and animals? Click on post comments to answer.

Where does the Krebs cycle occur? 
Click on post comments to answer.

In which organelle does the alcoholic fermentation occur? 
I think that it occurs in the cytoplasm. Click on post comments to answer.

Why are centrioles in an angel position? 
Click on post comments to answer.

What is C6H12O6 + 2CH3H20H + 2CO2? 
Alcoholic fermentation? Click on post comments to answer.

What is cell theory? 
Click on post comments to answer.

What would happen to the glycolysis pathway if a cell runs completely out of ATP? 
The cell would start to go through fermentation. Click on post comments to answer.

What does it mean when scientists say that living organisms share a universal genetic code?  
I'm really confused about this and my teachers aren't explaining it very well. Note: Read our review on Protein Synthesis under Cell Biology, answer …

Why are lysosomes abundant in phagocytic cells? 
I don't know the answer, so if any could help me I'll be very glad. Click on post comments to answer.

What is the role of osmosis in the body? 
What is the role of osmosis in the body? Click on post comments to answer.

What kind of pigment gets passed absorbed light? 
This occurs in photosystem two in photosynthesis?

How does dna appear in a cell between cell divisions? 
How does DNA appear in a cell between cell divisions?

How are mitochondria used in cellular respiration? 
How are mitochondria used in cellular respiration?

What happens to subunits when they reach the typical cells and fat cells (growth)? 
- Subunits are assembled into human - proteins, carbohydrates and lipids in cells - amino acids are used to build proteins - glucose and other simple …

During aerobic respiration in animals, where do ATP molecules form? 
During aerobic respiration in animals, where do ATP molecules form?

If a gorilla had 48 chromosomes before meiosis, how many chromosomes would exist in each nucleus after meiosis I and then after meiosis II?  
If a gorilla had 48 chromosomes before meiosis, how many chromosomes would exist in each nucleus after meiosis I and then after meiosis II?

What are the functions of different cell organelles? 
Tell the functions of different cell organelles.

What are examples and reasons for use of semi permeable or partially permeable membrane? 
Separation of bacterias from viruses, purification of water...

Why is the cell called the basic unit of life? 
Discuss why the cell is called the basic unit of life.

The cell cycle is the period of growth and cell...? 
The cell cycle is the period of growth and cell...?

What has four steps in cell divison? 
What has four steps in cell division?

How do we use/release the other 62% of energy from glucose? 
When you exercise that is why you feel warmer, but what if you are not exercising? What is the biological reason we sweat? Thanks!

What does ATP do for the cell? 
What does ATP do for the cell?

Do all cells store their chromosomes in the nucleus? 
Yes, all cells store their chromosomes in the nucleus because it is a safe place for them.

What are the general vocabulary terms in Biology? 
I'm needing to know general vocabulary terms for Biology? Note: Select from our sitemap.

Why are cells not counted in number? 
Why are cells not counted in number?

What are the main ideas of chromosome and cell division? 
What are the main ideas of chromosome and cell division?

Does the nucleus of a cell have DNA? 
I think it does but im not 100% sure...

What are the 3 phases of the aerobic cellular respiration process? 
What are the 3 phases of the aerobic cellular respiration process?

Where do the ATP molecules produced during aerobic respiration go? 
Do they remain in the mitochondria, are stored in chloroplasts of the same cell in which they are formed, enter the cell's cytoplasm through the membranes …

What are specific examples of substances that are moved by facilitated diffusion and active transport? 
Facilitated diffusion requires no energy while active transport does.

When does reduction division take place? 
I believe its meiosis II.

How is the information that directs protein synthesis stored in DNA? 
a. in the arrangement of the phosphate groups b. in the order of the nitrogenous bases c. in the nucleosomes that are complexed to the DNA …

What are the phases of cellular respiration and where they occur in the cell? 
What are the phases of cellular respiration and indicate where they occur in the cell.

What is the difference between a cell membrane and a stone wall? 
The difference between a membrane and a stone wall is that the wall is the outside that keeps the wall staning and the cell membrane is the inside that …

How many meiotic divisions are required to form 1000 daughter cells? 
Please mention the formula required to find the answer.

When does fermentation alone occur?  
Fermentation occurs when there is no oxygen present.

What would happen to a cell without the nucleolus? 
What would happen to the cell if the nucleolus was to die?

A cell with a nucleus is a...? 
A cell with a nucleus is a?

To go around the Calvin Cycle 3 times, how many 5-Carbon RuBP molecules are needed? 
To go around the Calvin Cycle 3 times, how many 5-Carbon RuBP molecules are needed ?

How would you define the events of prophase of mitosis? 
In prophase of mitosis the chromatin materials get condensed by folding and the chromosome appears as thin threads at the begning of prophase .

How does meiosis take place? 
Meiosis process.

What are the 2 types of final stages in fermentation? 
Alchoholic fermentation & lactate fermentation.

Where is the Golgi body in a cell compared to the ER? 
Where are the ER and Golgi bodies?

What is NADP? 
Nicotinamide adenine dinucleotide phospate?

What is the reaction of cellular respiration? 
I'm not quite sure I understand the question.

Why are cells stained ? 
To better conciever cells and cell components under a microscope.

What type of cells carry out aerobic cellular respiration? 
What type of cells carry out aerobic cellular respiration?

What is cellular digestion? 
What is cellular digestion?

What are the kinds of cell respiration? 
I realy realy need this answer so please if anyone knows this please answer it!

I did an experiment to compare rate of respiration of yeast with different substrates.Why the rate of gas released with yeast in water is faster than that in starch solution? 
I guess that yeast can respire in water only with the endogenous substrate. But I can't understand why the rate of it is faster than that with starch.

What are the steps in passive transport? 
Hey is any one in debate?

What are two conditions which are necessary for a substance to enter a cell by diffusion? 
Really confused on the answer, is it to do with temperature?

What are motor proteins and how do they relate to the cytoskeleton? 
ATP powered movement along the cytoskeleton...



Cell Biology questions done? Back to BQA home.