Cell Biology Quiz 4

April 01, 2021

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