Cell Biology Quiz 4

Cell Biology Quiz

Cell Biology Quiz #4

The cell wall is a complex, highly organized structure that defines the shape of a plant cell (it is also found in bacteria, fungi, algae, and archaea). In addition to defining the shape of plant cells, a cell wall has a few other functions that include maintaining the structural integrity of a cell, acting as a line of defense against a variety of external factors as well as hosting various channels, pores and receptors that regulate various functions of a cell. As such, it is a multifunctional structure in plant cells that also contributes to plant growth.

Q:61: The outermost layer of the cell wall is

  • (A) Primary wall
  • (B) Secondary wall
  • (C) Middle lamella
  • (D) Plasma membrane

Answer:- {C} Middle lamella

Q:62: Infoldings of inner membrane in mitochondria are called

  • (A) Grana
  • (B) Thyallkoids
  • (C) Cristae
  • (D) Frets

Answer:- {c} Cristae

Q:63: Chromosome with equal arms is called

  • (A) Metacentric
  • (B) Sub-metacentric
  • (C) Acrocentric
  • (D) Telocentric

Answer:- {A} Metacentric

Q:64: A chromosome with the centromere located very close to one end so that the shorter arm is
very small is termed as

  • (A) Telocentric
  • (B) Sub-telocentric
  • (C) Acrocentric
  • (D) Both B and C

Answer:- {D} Both B and C

Q:65: The matrix surrounding the grana in the inner membrane of chloroplasts is

  • (A) Cytosol
  • (B) Frets
  • (C) Stroma
  • (D) Inter-granal lamellae

Answer:- {C} Stroma

Q:66: A chromosome whose centromere lies at one end.

  • (A) Sum-metacentric
  • (B) Metacentric
  • (C) Telocentric
  • (D) Acrocentric

Answer:- {C} Telocentric

Q:67: Lysosomes arise from,

  • (A) Nucleus
  • (B) Endoplasmic reticulum
  • (C) Golgi apparatus
  • (D) Cell membrane

Answer:- {C} Golgi apparatus

Q:68: The primary structural component(s) of centrioles is (are):

  • (A) Microtubules
  • (B) Microfilaments
  • (C) Intermediate filaments
  • (D) Basal bodies

Answer:- {A} Microtubules

Q:69: The process of self-digestion of selective non-functional organelles by a cell through the action of enzymes originating within the cell is referred to as

  • (A) Pinocytosis
  • (B) Endocytosis
  • (C) Autophagy
  • (D) Cytotoxicity

Answer:- {C} Autophagy

Q:70: :″Proteins icebergs in a sea of lipids” is stated by

  • (A) Lamellar Model
  • (B) Unit-membrane Model
  • (C) Fluid-Mosaic model
  • (D) Micellar Model

Answer:- {C} Fluid-Mosaic model

Q:71: The chloroplast develop from

  • (A) ER
  • (B) Golgi complex
  • (C) Nuclear membrane
  • (D) Proplastids

Answer:- {D} Proplastids

Q:72: Peroxisomes and Glyoxisomes are

  • (A) Energy transducers
  • (B) Membrane-less organelles
  • (C) Micro bodies
  • (D) Basal bodies

Answer:- {C} Micro bodies

Q:73: These are involved in the conversion of fats to carbohydrates by oxidation of fats.

  • (A) Peroxisomes
  • (B) Microsomes
  • (C) Glyoxisomes
  • (D) Phagosomes

Answer:- {C} Glyoxisomes

Q:74: Xanthophyll is a pigment having

  • (A) Yellow color
  • (B) Green color
  • (C) Red color
  • D) Blue color

Answer:- {A} Yellow color

Q:75: The covering of vacuole is known as

  • (A) Chromoplast
  • B) Chloroplast
  • (C) Amyloplast
  • (D) Tonoplast

Answer:- {D}  Tonoplast

Q:76: Insulin is secreted from cells in this way

  • (A) Endocytosis
  • (B) Pinocytosis
  • (C) Phagocytosis
  • (D) Exocytosis

Answer:- {D} Exocytosis

Q:77: ________________ increases size of an object.

  • (A) Magnification
  • (B) Resolution
  • (C) Resolving power
  • (D) Contrast

Answer:- {A} Magnification

Q:78: The chromosome " B " in this diagram is

  • (A) Metacentric
  • (B) Sub-metacentric
  • (C) Acrocentric
  • (D) Telocentric

Answer:- {B} Sub-metacentric

Q:79: Select the correct label" B " in this diagram.

  • (A) Endoplasmic reticulum
  • (B) Peroxisome
  • (C) Golgi apparatus
  • (D) Glyoxysome

Answer:- {C} Golgi apparatus

Q:80: Which of the following organelles or structures is found in both plant and animal cells?

  • (A) Central vacuole
  • (B) Tonoplast
  • (C) Cell wall
  • (D) Peroxisomes

Answer:- {D} Peroxisomes