Cell: The Unit of Life' For NEET
Test 2

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which of the following is correct about the nucleolus?

The nucleolus stores genetic information.
The nucleolus is the site of ribosome assembly.
The nucleolus produces lipids.
The nucleolus is found in the cytoplasm.
2

The nucleolus is located inside the nucleus and is responsible for assembling ribosomal subunits.

Which of the following is correct about the nucleoplasm?

Nucleoplasm is found outside the nucleus.
Nucleoplasm contains chromatin and nucleolus.
Nucleoplasm synthesizes lipids.
Nucleoplasm is a rigid, solid structure.
2

Nucleoplasm, also called nuclear sap, contains chromatin and the nucleolus and provides a medium for molecular movement within the nucleus.

Which of the following statements about centrioles is incorrect?

Centrioles help organize microtubules during cell division.
Centrioles are present in plant cells.
Centrioles are composed of microtubules.
Centrioles are involved in forming spindle fibers.
2

Centrioles are typically absent in plant cells but are present in animal cells and help organize spindle fibers during cell division.

Which of the following is incorrect about ribosomes?

Ribosomes are involved in protein synthesis.
Ribosomes are found only in eukaryotic cells.
Ribosomes can be free or attached to the endoplasmic reticulum.
Prokaryotic ribosomes are 70S.
2

Ribosomes are found in both prokaryotic and eukaryotic cells, not only in eukaryotic cells.

Which organelle is responsible for the synthesis of lipids in eukaryotic cells?

Rough endoplasmic reticulum
Smooth endoplasmic reticulum
Golgi apparatus
Peroxisome
2

The smooth endoplasmic reticulum is involved in lipid and steroid hormone synthesis, as well as detoxification processes.

Which organelle is involved in the synthesis of glycoproteins and glycolipids?

Rough endoplasmic reticulum
Smooth endoplasmic reticulum
Golgi apparatus
Mitochondria
3

The Golgi apparatus is responsible for the modification and synthesis of glycoproteins and glycolipids.

Who modified the cell theory by stating that all cells arise from pre-existing cells?

Anton Von Leeuwenhoek
Rudolf Virchow
Theodore Schwann
Matthias Schleiden
2

Rudolf Virchow modified the cell theory by introducing the concept that all cells arise from pre-existing cells (Omnis cellula e cellula).

Which membrane protein type spans the entire lipid bilayer?

Peripheral proteins
Integral proteins
Glycoproteins
Enzymes
2

Integral proteins span the entire lipid bilayer, facilitating transport and communication across the plasma membrane.

Which of the following is correct about lysosomes?

Lysosomes are involved in lipid synthesis.
Lysosomes are involved in intracellular digestion.
Lysosomes produce ATP.
Lysosomes synthesize proteins.
2

Lysosomes contain hydrolytic enzymes and are involved in the breakdown of cellular waste and foreign substances.

Which of the following statements about plasmodesmata is correct?

Plasmodesmata are found only in animal cells.
Plasmodesmata connect the cytoplasm of adjacent plant cells.
Plasmodesmata synthesize proteins.
Plasmodesmata store starch.
2

Plasmodesmata are channels that connect the cytoplasm of adjacent plant cells, allowing communication and transport of materials.

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