Test: Diversity in Living Organisms- 2


25 Questions MCQ Test Science & Technology for UPSC CSE | Test: Diversity in Living Organisms- 2


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Attempt Test: Diversity in Living Organisms- 2 | 25 questions in 25 minutes | Mock test for Class 9 preparation | Free important questions MCQ to study Science & Technology for UPSC CSE for Class 9 Exam | Download free PDF with solutions
QUESTION: 1

A unit of protoplasm having a nucleus and covered by plasmalemma is called :-

Solution: A cytoplast is a medical term which is defined as cell membrane plus cytoplasm. It is occasionally used to describe a cell in which the nucleus has been removed. Protoplasm = Cytoplasm + Nucleoplasm. Protoplast = Protoplasm + Plasma membrane.
QUESTION: 2

The term cytoplasm was coined by :-

Solution:

Strasburger coined the terms cytoplasm and Nucleoplasm. Cytoplasm occurs around the Nucleus and inside the plasma membrane containing Various Organnels.

QUESTION: 3

Which of the following is correct for prokaryotic ribosome :-

Solution:
QUESTION: 4

Golgi apparatus takes part in synthesis of :-

Solution:
QUESTION: 5

In a cell DNA is found in :-

Solution:
QUESTION: 6

Cartilage matrix is digested during its osteogenesis through :-

Solution:
QUESTION: 7

Which one is lysosomal activity :-

Solution:
QUESTION: 8

When are lysosomes extra-active :-

Solution:
QUESTION: 9

In animal cell, a mitochondrion is :-

Solution:
QUESTION: 10

Outer mitochondrial membrane resembles bacterial membrane and outer chloroplast membrane in having :-

Solution:
QUESTION: 11

Chromoplasts are formed from chloroplasts during :-

Solution:
QUESTION: 12

Experiments on Acetabularia by Hammerling proved the role of :-

Solution:
QUESTION: 13

The plastids with irregular shape are :-

Solution:
QUESTION: 14

Peroxisomes and glyoxysomes are :-

Solution:
QUESTION: 15

In which organism flame cells form the excretory system?

Solution:

flame cell is a specialized excretory cell found in the simplest freshwater invertebrates, including flatworms, rotifers and nemerteans; these are the simplest animals to have a dedicated excretory systemFlame cells function like a kidney, removing waste materials. Bundles of flame cells are called protonephridia.

QUESTION: 16

Microfilaments were discovered by :-

Solution:
QUESTION: 17

Microfilaments are required for :-

Solution:
QUESTION: 18

Cell polarity is determined by :-

Solution:
QUESTION: 19

Who coined the term 'Nucleolus' ?

Solution:

The nucleus is a small, dense and spherical structure present in the nucleus of the cell that is visible during the interphase of the cell division under the microscope. 
The term Nucleolus was coined by Bowman  but first described by Fontana in the year 1781.
So,   the correct  answer is Bowman.

QUESTION: 20

Which of the following phenomena is commonly referred as 'cell drinking' ?

Solution:
QUESTION: 21

The two centrioles of a pair occur :-

Solution:
QUESTION: 22

Cell organelle having a cartwheel constitution is :-

Solution:
QUESTION: 23

A flagellum beats :-

Solution:
QUESTION: 24

Food vacuole is formed from :-

Solution:
QUESTION: 25

Chromatin material which remains condensed during interphase is called:-

Solution:
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