9.A student was given cell samples (A and B) to identify parts which are highlighted. He observed the samples under the microscope and list down the function of the part of cell sample. The information collected by the student is listed in the table below, on the basis of which the student infers that the samples contain the organelles.
| Sample A | Sample B |
|---|---|
| Make energy available for cellular metabolism | Generates ATP and synthes izes s ugar |
| Absent in cell that carry oxygen throughout the body | Present in plant cell |
| Called the energy currency of cell | Source o f all the food energy |
Explain why the samples were belonged to eukaryotic cell and not prokaryotic cell? Because,
eukaryotic cell have membrane bound organelles.
eukaryotic cell have non - membrane bound organelles.
eukaryotic cell are smaller and multiply more rapidly than prokaryotic cells.
eukaryotic cell are larger and multiply more rapidly than prokaryotic cells.
Correct Answer :
B. eukaryotic cell have non - membrane bound organelles.
The samples belong to eukaryotic cells because eukaryotic cell is a type of cell which have enclosed membrane bound organelles and nucleus. And both the mitochondria and chloroplast are membrane bound organelles. Whereas prokaryotic cells are morphologically the most primitive cells and they don't have a membrane bound nucleus and organelles. Prokaryotic cells are generally smaller in size and multiply more rapidly than the eukaryotic cells.
Related Questions
Function of contractile vacuole in Amoeba is
excretion and osmoregulation.
digestion and respiration.
osmoregulation and transportation.
none of the above.
Choose the wrong statements regarding bacterial cell
- Glycocalyx is the outermost envelope in bacteria.
- The glycocalyx could be a loose sheath called capsule.
- The glycocalyx may be thick and tough called slime layer.
- A special structure formed by the plasma membrane is called mesosome.
- Small bristle like fibres sprouting out of the cell are called fimbriae.
(i) and (iii)
(i) and (ii)
(ii) and (iii)
(i) and (iv)
Active transport differs from passive transport in that active transport
requires energy.
always requires input of ATP.
moves molecules against a concentration gradient.
both (a) and (c)
Extension of plasma membrane in prokaryotic cell is
mesosome
haploid
ribosome
none of these
Choose the incorrect match.
Nucleus RNA
Lysosome Protein synthesis
Mitochondria Respiration
Cytoskeleton Microtubules
Difference between the prokaryotic and eukaryotic cells in having
cell wall
nuclear membrane
ribosome
none of these
Plastids storing fat are called
Elaioplasts
Sphaerosomes
Aleuroplasts
Pyrenoids
A component of cytoskeleton is
microtubule
bone
chitin
cartilage.
9.A student was given cell samples (A and B) to identify parts which are highlighted. He observed the samples under the microscope and list down the function of the part of cell sample. The information collected by the student is listed in the table below, on the basis of which the student infers that the samples contain the organelles.
| Sample A | Sample B |
|---|---|
| Make energy available for cellular metabolism | Generates ATP and synthes izes s ugar |
| Absent in cell that carry oxygen throughout the body | Present in plant cell |
| Called the energy currency of cell | Source o f all the food energy |
Explain why the samples were belonged to eukaryotic cell and not prokaryotic cell? Because,
eukaryotic cell have membrane bound organelles.
eukaryotic cell have non - membrane bound organelles.
eukaryotic cell are smaller and multiply more rapidly than prokaryotic cells.
eukaryotic cell are larger and multiply more rapidly than prokaryotic cells.
Read the statements given below with regard to the functions performed by Golgi apparatus ?
- Transport and chemically modify the materials contained within it.
- Performs the function of packaging materials.
- Important site of formation of glycoproteins and glycolipids.
Which of the following is the correct answer ?
(i) is wrong but (ii) and (iii) are correct
(ii) is wrong but (i) and (iii) are correct
(ii) and (iii) are wrong but (i) is correct
All are correct.
Which of the following statement is correct regarding vacuole?
It is membrane-bound and contains storage proteins and lipids.
It is membrane-bound and contains water and excretory substances.
It lacks membrane and contains air.
It lacks membrane and contains water and excretory substances.
Which cellular structure helps in transferring genetic information from one generation to another?
W
X
Y
Z
Which one of the following cellular parts is correctly matched with their characters ?
Centrioles Sites for active RNA synthesis.
Lysosomes Optimally active at a pH of about 8.5.
Thylakoids Flattened membranous sacs forming the grana of chloroplasts.
Ribosomes Those on chloroplasts are larger (80S) while those in the cytoplasm are smaller (70S).
Chromosomes having equal or almost equal arms are called
metacentric
acrocentric
polycentric
acentric.
The membrane of the erythrocytes has approximately ___% of proteins and ___% lipids.
42, 50
52, 40
50, 50
60, 40
Match column-I (cell organelle) with column-II membrane and select the correct option from the codes given below.
| Column-I | Column-II |
|---|---|
| A. Mitochondria | I. Without membrane |
| B. Lysosomes | II. Single membrane |
| C. Ribosomes | III. Double membrane |
A - I, B - II, C - III
A - III, B - I, C - II
A - III, B - II, C - I
A - II, B - III, C - I
Most of water, in mature plant cells occurs in
nucleus
cell wall
vacuoles
cytoplasm
Which of the following statement is false?
The ribosomes of a polysome translate the mRNA into protein.
Mitochondria divide by fragmentation.
All cell arise from pre-existing cells.
The lipid component of the membrane mainly consists of phosphoglycerides.
pH of vacuolar cell sap is
neutral and isotonic.
alkaline and isotonic.
acidic and hypertonic.
equal to cytoplasm and isotonic.
In which of the following the cells are held together by a Ca-pectate layer?
Primary cell wall
Secondary cell wall
Middle lamella
Tertiary cell wall
Which one of the following is not considered as part of the endomembrane system?
Golgi complex
Peroxisome
Vacuole
Lysosome
Select the statements which are related to Schwann.
- He reported that cells have a thin outer layer which is today known as plasma membrane
- Cell wall is a unique character of the plant cell.
- Body of plants and animals are composed of cells and products of cells.
Only (i)
Only (iii)
(i) and (iii)
All of these
The figure below shows the structure of a mitochondrion with its four parts labelled (A), (B), (C) and (D).
Select the part correctly matched with its function.
Part (D): Outer membrane Gives rise to inner membrane by splitting.
Part (B): Inner membrane Forms infoldings called cristae.
Part (C): Cristae Possess single circular DNA molecule and ribosomes.
Part (A): Matrix Major site for respiratory chain enzymes.
Active transport across biomembrane involves
production of ATP
requirement of energy
production of toxin
release of energy
Which of the following organelles is directly connected to the outer membrane of the nucleus in a eukaryotic cell?
Mitochondrion
Lysosome
Golgi apparatus
Endoplasmic reticulum
Select the incorrect statement about prokaryotic ribosomes.
50S and 30S subunits unite to form 70S ribosomes.
Polysome/polyribosome consists of many ribosomes only.
Ribosome is the site of protein synthesis.
Polysome indicate the synthesis of identical poolypeptide in multiple copies.
Satellite means
terminal part of the chromosome beyond secondary constriction.
terminal part of the chromosome beyond primary constriction.
terminal part of chromosome beyond tertiary constriction.
none of the above
Lysosomes contain
carbohydrates
hormones
nucleic acids
hydrolases.
Plastids are found in
all animal cells.
some animal cells.
all plant cells.
all plant cells and euglenoides.
Consider the following statements and choose the correct statement.
- The endomembrane system includes mitochondria, chloroplast and peroxisomes.
- Smooth endoplasmic reticulum is the major site for synthesis of lipid.
- Rough endoplasmic reticulum is actively involved in protein synthesis.
- Mitochondrial matrix possesses single circular DNA, a few RNA and 80S ribosomes. Of the above statements.
(i) and (iii)
(ii) and (iv)
(iii) and (iv)
(ii) and (iii)