Cell: The Unit of Life' For NEET
Test 1

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which of the following is correct about the Golgi apparatus?

The Golgi apparatus produces ribosomes.
The Golgi apparatus modifies and packages proteins.
The Golgi apparatus stores genetic material.
The Golgi apparatus is involved in photosynthesis.
2

The Golgi apparatus processes, modifies, and packages proteins and lipids for secretion or use within the cell.

Which of the following statements about the plasma membrane is correct?

The plasma membrane is composed only of proteins.
The plasma membrane is impermeable to gases.
The plasma membrane is selectively permeable.
The plasma membrane produces ribosomes.
3

The plasma membrane is selectively permeable, allowing the regulated entry and exit of substances.

Which of the following statements about chromosomes is correct?

Chromosomes are only present in prokaryotic cells.
Chromosomes are made of DNA and proteins.
Chromosomes synthesize ATP.
Chromosomes store lipids.
2

Chromosomes consist of DNA and histone proteins, which carry genetic information.

Which of the following statements about the nucleus is correct?

The nucleus is present in all types of cells, including prokaryotic cells.
The nuclear envelope has pores that allow the exchange of materials.
The nucleolus stores genetic information.
The nucleus produces ATP for the cell.
2

The nuclear envelope contains pores that regulate the transport of molecules between the nucleus and the cytoplasm.

Which organelle is commonly referred to as the ‘protein factory’ of the cell?

Golgi apparatus
Nucleus
Ribosome
Endoplasmic reticulum
3

Ribosomes are known as the ‘protein factories’ because they are the sites of protein synthesis, assembling amino acids into polypeptides.

Which cellular component is continuous with the outer membrane of the nuclear envelope?

Golgi apparatus
Smooth endoplasmic reticulum
Rough endoplasmic reticulum
Mitochondria
3

The rough endoplasmic reticulum (RER) is continuous with the outer membrane of the nuclear envelope and is involved in protein synthesis.

What is the primary component of the middle lamella in plant cells?

Cellulose
Pectin
Chitin
Lignin
2

The middle lamella, which holds plant cells together, is primarily composed of pectin.

Who first observed and described live microorganisms using a microscope?

Robert Brown
Matthias Schleiden
Anton Von Leeuwenhoek
Rudolf Virchow
3

Anton Von Leeuwenhoek first observed and described live microorganisms, such as bacteria and protozoa, using a simple microscope in the 1670s (NCERT, Chapter 8, page 125). Robert Brown discovered the nucleus, Schleiden contributed to cell theory, and Virchow proposed that cells arise from pre-existing cells.

Which of the following statements about cell theory is incorrect?

All living organisms are composed of cells.
Cells can arise spontaneously from non-living material.
All cells arise from pre-existing cells.
Cells are the fundamental unit of life.
2

The statement that cells arise spontaneously from non-living material is incorrect. Rudolf Virchow stated that all cells arise from pre-existing cells.

Which of the following statements about the nucleolus is incorrect?

The nucleolus is involved in ribosome production.
The nucleolus is the primary site for storing genetic information.
The nucleolus is found inside the nucleus.
The nucleolus produces rRNA.
2

The nucleolus is not the primary site for storing genetic information; this role belongs to chromatin in the nucleus (NCERT, Chapter 8, page 136). The nucleolus, located inside the nucleus, produces rRNA and assembles ribosomal subunits. It contains DNA in nucleolar organizer regions (NORs) for rRNA genes, but its primary function is ribosome production.

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