Kerala SCERT Class 8 Science Chapter 1 Life’s Mysteries in Little Chambers Question Answer Solution Here. Kerala Board Class 8 Students can find Here 1st Chapter Life’s Mysteries in Little Chambers Notes provide by our Teacher. Important Question Answer from Chapter 1 Life’s Mysteries in Little Chambers.
- Board– Kerala Board.
- Class – 8.
- Subject – Science Part 1
- Chapter – 1.
- Chapter Name – Life’s Mysteries in Little Chambers.
- Topic – Question Answer Solution.
QUESTIONS: (1) Microscope in which more than one lens is use is called__________.
(a) Compound microscope (b) simple microscope
Ans: – Compound microscope.
QUESTIONS: (2) _________ was the first scientist who observed cells with the help of simple microscope.
(a) Robert Hooke
(b) Robert brown
(c) Rudolf Virchow
(d) Theodoy Schwann
Ans: – Robert Hooke.
QUESTIONS: (3) Robert Hooke was the first scientist who observed cell with the help of a _______
(a) Simple microscope
(b) Compound microscope
Ans: – Simple microscope.
QUESTIONS: (4) ________ is power house of the cell.
(a) Mitochondrion
(b) Endoplasmic reticulum
(c) Ribosome
(d) Vacuole
Ans:-Mitochondrion.
QUESTIONS: (5) Vacuole covered by characteristic membrane called___________
(a) Tonoplast.
Ans: – Tonoplast
Question: (6) In the cell of bacteria cyono bacteria and mycoplasma, no nucleus is seen thes organism are called________?
(a) Prokaryotes
(b) Eukaryotes
Ans: – Prokaryotes.
Question: (7) In cell of amoeba, animals and plants a well defined nucleus covered by membrane is seen the organisms are called _____?
(a) Eukaryotes
(b) Prokaryotes
Ans: – Eukaryotes.
Question: (8) ________ are the cell organs that are exclusively found in plant cell ?
(a) Plastids
Ans: – Plastids
Question: (9) Plastids are the cell organs that are exclusively found in ________?
(a) Plant cells
(b) Animal cell
Ans: – Plant cells
Question: (10) Photosynthesis is perform by __________
(a) Chloroplast
(b) Chromoplasts
(c) Leucoplast
Ans: – Chloroplast
Question: (11) Various range of these _________ import different colours to various parts of the plants?
Ans: – Pigments.
Question: (12) _________ are plastids having no specific colour?
(a) Chloroplast
(b) Chromoplasts
(c) Leucoplast
Ans: – Leucoplast.
Question: (13) _________ are seen in plenty in the cells were food material are stored?
(a) Chloroplast
(b) Chromoplasts
(c) Leucoplast
Ans:-
Question: (14)_________ is converted into sugar
Ans: – Starch.
Very Short
Question: (1) define compound microscope.
Ans: – Microscope in which more than one lens is used is called compound microscope.
QUESTIONS: (2) what is meant by cell biology.
Ans: – The cell is an extensive branch of science which is rapidly developing is known as cell biology.
QUESTIONS: (3) Which cell organ is power house of cell.
Ans: – mitochondrion is power house of the cell.
QUESTIONS: (4) What is function of vacuole.
Ans: – Vacuole stores water, salts, excratory material etc.
QUESTIONS: (5) Name different part of plant cell.
Ans: – Nucleus, vacuole, cell wall, chloroplast, Ribosome etc.
QUESTIONS: (6) Name the part of microscope.
Ans: – Eyepiece, knob, mirror, objective lens, condenser etc.
QUESTIONS: (7) who observed the cell with the help of simple microscope?
Ans: – Robert Hooke.
QUESTIONS: (8) Give example of prokaryote
Ans: – Bacteria, cyono bacteria and mycoplasma etc.
QUESTIONS: (9) give example of eukaryotes.
Ans: – Amoeba, animals and plants etc.
SHORT NOTES:
QUESTIONS: (1) explain discovering of cell?
Ans: – Robert Hook was the first scientist who observed cell with help of simple microscope. He observed the section of cork through a microscope and called the tiny chamber seen in section cell.
QUESTIONS: (2) describe cell theory?
Ans: – The cell theory was formulated by M.J. Schleiden, Theodor Schwann of various scientists. It puts forward two main concepts.
The body of all organism is made up of cell.