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Transport Across Cell Membrane (Set - III)

Description: Transport Across Cell Membrane - III
Number of Questions: 15
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Tags: Transport Across Cell Membrane - III Structure and Functions of Cell Organelles Fundamental Unit of Life Cell - its Types Animal and Plant Cells
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A student has kept a plant cell in a sugar solution for 30 minutes. What change will the student observe in the cell?

  1. It will burst.

  2. It will bulge.

  3. It will plasmolyse.

  4. It will remain the same.


Correct Option: C
Explanation:

The plant cell will plasmolyze as sugar solution is a hypertonic solution.

A cell is kept in a hypotonic solution and after sometime it is observed that the cell volume has increased due to movement of water into it and the cell bursts. Which among the following cells could it be?

  1. Human cell

  2. Plant cell

  3. Fungal cell

  4. Bacterial cell


Correct Option: A
Explanation:

A human cell has no cell wall.

While observing the structure of nucleus under microscope, Rishi observed a spherical body inside it. What is this spherical body present inside the nucleus called?

  1. Chromosomes

  2. Genes

  3. Nucleolus

  4. Chromatin


Correct Option: C
Explanation:

Nucleolus is a spherical shaped structure present in the nucleus of a cell.

Which of the following groups of organisms is prokaryotic?

  1. Green algae, brown algae and red algae

  2. Yeasts and other fungi

  3. Mycoplasma, bacteria and cynobacteria

  4. Bacteria, yeast and virus


Correct Option: C
Explanation:

The organisms that do not possess a well-defined nuclear membrane are called prokaryotes. For example, mycoplasma, bacteria and cyanobacteria.

While observing an animal cell under microscope, Rohan saw a dense round body in the centre of the cell. What is this structure called?

  1. Nucleoplasm

  2. Nucleus

  3. Mitochondria

  4. Centrosome


Correct Option: B
Explanation:

Nucleus is present in the centre of an animal cell and it appears as a dense body under microscope.

Chloroplast is a type of plastid and is present in plants and certain algae. Which of the following processes is performed by chloroplast?

  1. Transpiration

  2. Translocation

  3. Photosynthesis

  4. Germination


Correct Option: C
Explanation:

Chloroplast contains green coloured pigment called chlorophyll that helps in the process of photosynthesis.

Which of the following statements is incorrect about a cell?

  1. A cell is the basic structural and functional unit of life.

  2. All living organisms are made up of cells.

  3. A cell has a simple structure in all living organisms.

  4. Different cells have different shapes and sizes.


Correct Option: C
Explanation:

Complexity of a cell depends on the type of organism. It may be simple or complex depending on the organism.

A cell organelle 'Y' is present in plants and possesses its own DNA and ribosomes. Identify the organelle and choose the correct option from the given options.

  1. Centrosome

  2. Nucleolus

  3. Plastids

  4. Golgi apparatus


Correct Option: C
Explanation:

 Mitochondria and plastids are the two cell organelles which possess their own DNA and ribosomes.

What is the function of golgi apparatus?

  1. Storage, transportation and protein synthesis

  2. Storage, packaging and transport of proteins and lipids

  3. Synthesis and modification of proteins

  4. Synthesis and modification of lipid


Correct Option: B
Explanation:

Golgi apparatus is present around the ER of a cell and helps in storage, packaging and transportation of proteins and lipids.

Which of the following types of cells can be seen with naked eye?

  1. Egg cell of a hen

  2. Cells of an elephant’s brain

  3. Neurons of a giant squid

  4. No single cell can be seen with naked eye


Correct Option: A
Explanation:

Egg cell of a hen is large enough to be seen by naked eye.

Consider the following statements and choose which among them is not a function of ER.

  1. It serves as a channel for the transport of materials between various regions.

  2. It acts as a cytoplasmic framework and provides a surface for biochemical processes in a cell.

  3. It helps in the detoxification of drugs and poisons.

  4. It helps in the synthesis of lysosomes.


Correct Option: D
Explanation:

 ER doesn't helps in the synthesis of lysosomes.

A cell organelle ‘X’ is a small, rod-shaped or spherical body with a double membrane. Its inner membrane has several folds, which project inwards, forming finger-like structures called cristae. It has its own ribosomes. Identify the cell organelle 'X'.

  1. Endoplasmic reticulum

  2. Golgi body

  3. Mitochondria

  4. Centrosome


Correct Option: C
Explanation:

 The organelle 'X' is mitochondria as it has a small, rod-shaped or spherical body with a double membrane. Its inner membrane has several folds, which project inwards, forming finger-like structures called cristae. It has its own ribosomes too.

Which among the following materials present in the cell, condenses at the time of cell division?

  1. Chromatin

  2. Nucleolus

  3. Nuclear membrane

  4. Nucleosome


Correct Option: A
Explanation:

 Chromatin is present in the cell which condenses at the time of cell division.

A special type of plastid is present in the plants for storage of starch, oil and proteins. Identify it and choose the correct option from the given options.

  1. Chloroplast

  2. Leucoplast

  3. Chromoplast

  4. Protoplast


Correct Option: B
Explanation:

 Leucoplast is a special type of plastid present in the plants for storage of starch, oil and proteins.

A special organelle is present in living cells which helps to transport proteins and lipids across the cell membrane. Identify it and choose the correct option from the given options.

  1. Endoplasmic reticulum

  2. Nucleolus

  3. Golgi apparatus

  4. Centrosome


Correct Option: C
Explanation:

 Golgi apparatus is present in living cells which helps transport proteins and lipids across the cell membrane.

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