Tag: the components in a cell

Questions Related to the components in a cell

The main features of Cnidarians is their specialized cells called ________.

bio-chemistry cell biology cytoplasm the components in a cell component of the cell

  1. Epithelial

  2. Cnidocytes

  3. Coenocytes

  4. Polyps

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Correct Option: B
Explanation:

Cnidocytes contain stinging structure known as nematocysts. Cnidocytes in tentacular region help in capturing the larger prey as their nematocytes discharge toxins into their prey.

Substance forming $80$% of cytoplasm in plant cells is

bio-chemistry cell biology cytoplasm the components in a cell component of the cell

  1. Proteins

  2. Water

  3. Fats

  4. Minerals

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Correct Option: B
Explanation:

Cytoplasm is the fluid which is present in the living cell. It lies between the cell membrane and the nuclear membrane. It consists of 80% water. It is a colorless liquid which holds the cell organelle and helps in intracellular and intercellular transport. The cellular process like glycolysis and the cell division occurs in the cytoplasm. So, the correct answer is option B.

Gel part below the plasma membrane is

bio-chemistry cell biology cytoplasm the components in a cell component of the cell

  1. Ectoplasm

  2. Endoplasm

  3. Plasmalemma

  4. None of the above

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Correct Option: A
Explanation:
  • The gel part below the plasma membrane is ectoplasm.
  • The cytoplasm of the cell can be divided into two i.e, ectoplasm and endoplasm.
  • Ectoplasm or exoplasm is the outer, non-granulated gel-like part of the cytoplasm of the cell near to the plasma membrane.
  • Whereas. the endoplasm is the inner granulated layer of the cytoplasm.
  • So, the correct answer is 'Ectoplasm'.

The main arena of various activities of a cell is

bio-chemistry cell biology cytoplasm the components in a cell component of the cell

  1. Mitochondrion

  2. Cytoplasm

  3. Nucleus

  4. Plasma membrane

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Correct Option: B
Explanation:
  • The main arena of various cellular activities of a cell occur is cytoplasm.
  • Cytoplasm can be defined as a jellylike material present within the cell (inside the cell membrane) which surrounds the nucleus.
  • All the cellular organelles such as mitochondria, the endoplasmic reticulum, and chloroplasts, are contained in the cytoplasm (all the cellular activities carried out here).
  • So, the correct answer is 'Cytoplasm'.

Proteins required for functioning of nucleus are formed in

bio-chemistry cell biology cytoplasm the components in a cell component of the cell

  1. Cytoplasm

  2. RER

  3. Nucleolus

  4. Mitochondria.

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Correct Option: A

Which one is not properly paired?

bio-chemistry cell biology cytoplasm the components in a cell component of the cell

  1. Golgi apparatus- Breaking of complex macromolecules

  2. Endoplasmic reticulum- Protein synthesis

  3. Mitochondria- Oxidative phosphorylation

  4. Chloroplasts- Photosynthesis

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Correct Option: A
Explanation:
A. Golgi apparatus is an organelle found in the eukaryotic cells which forms a complex of vesicles and folded membranes within the cytoplasm that is involved in secretion and helps in intracellular transport.
B. The endoplasmic reticulum (smooth and rough) is an interconnected network of flattened, membrane-enclosed sacs which helps in the synthesis of lipids (SER) and proteins (RER).
C. The mitochondria is a double-membraned cell organelle (powerhouse of the cell) which is the site of the ETC and synthesis of ATP molecule or oxidative phosphorylation.
D. Chloroplast is a plastid which contains chlorophyll (green pigment) and is  present in the green parts of plants where photosynthesis takes place.
So, the correct answer is 'Golgi apparatus-Breaking of complex macromolecules'.

Most of the water found in the young cell occurs in

bio-chemistry cell biology cytoplasm the components in a cell component of the cell

  1. Cell wall

  2. Nucleus

  3. Cytoplasm

  4. Vacuoles

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Correct Option: C
Explanation:
Cytoplasm is the fluid which is present in the living cell. It lies between the cell membrane and the nuclear membrane. It consists of 80% water. It is a colourless liquid which holds the cell organelle and helps in intracellular and intercellular transport. The cellular process like glycolysis and the cell division occurs in the cytoplasm. 
The nucleus contains genetic material like DNA and RNA and helps in the inheritance of genetic characteristics.
The cell wall is made up of cellulose and provides structure and shape to the cell.
Vacuoles are the storage organelles which stores air, water, and food.
So, the correct answer is option C.

In rotation type of cyclosis, the cytoplasmic matrix flows in _____________.

bio-chemistry cell biology cytoplasm the components in a cell component of the cell

  1. One direction

  2. Two opposite directions

  3. Different directions

  4. Side-ways

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Correct Option: A
Explanation:
Answer is "One direction" i.e. option A
Cyclosis are movements of cytoplasm within a cell. Cylosis is said to be rotational when the protoplasm moves around a single central vacuoles in either clockwise or anticlockwise direction. Such movement of cytoplasm are observed in leaf cells of Hydrilla, Vallisneria.

Movement of cytoplasm around a vacuole is

bio-chemistry cell biology cytoplasm the components in a cell component of the cell

  1. Circulation

  2. Rotation

  3. Regulation

  4. Somersault.

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Correct Option: B

The fluid in which organelles of the cell are suspended is called ___________.

bio-chemistry cell biology cytoplasm the components in a cell component of the cell

  1. Cytosol

  2. Chromoplasm

  3. Chromoplast

  4. None of the above

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Correct Option: A
Explanation:

The cytoplasm is a fluid found in cells and the organelles suspended within. Cytoplasm is found in eukaryotic and prokaryotic cells. The fluid of cytoplasm is called cytosol.