Question 1 :
Amoeba has no definite shape, unlike other organisms. They has projections of varying lengths protruding out of its body that keeps on changing. These are called _______.
Question 3 :
The cells having well-organised nucleus with a nuclear membrane are designated as ________.
Question 4 :
State TRUE or FALSE: Gene controls the transfer of a hereditary characteristic from parents to offspring.
Question 9 :
Which of the following statements are true for eukaryotic cells?
(i)They do not have a nuclear membrane.
(ii)They have a well organised nucleus.
(iii)They have a nuclear membrane.
(iv)Blue green algae are eukaryotic cells.
Question 13 :
The change in shape of amoeba is due to formation of pseudopodia which facilitates movement and help ___________.
Question 14 :
I am like a policeman. I do not allow anything and everything to get in and out of the cell. Who am I?
Question 15 :
State whether true of false, “Unicellular organisms do not respire, only multicellular organisms respire”
Question 16 :
Under a microscope Paheli observes a cell that has a cell wall but no distinct nucleus. The cell that she observes is
Question 17 :
What is the central dense round body in the centre of the cell called?
Question 21 :
State True or False for the following statement:-
Vacuoles in animal cells are much smaller.
Question 27 :
In leaves, name the cell organelle that is responsible for green colour
Question 29 :
An organism with billions of cells begins life as ______ which is the fertilised egg.
Question 34 :
Amoeba has no definite shape, unlike other organisms. They has projections of varying lengths protruding out of its body that keeps on changing. These are called _______.
Question 38 :
Paheli accidentally placed her hand over a flame and immediately pulled it back. She felt the sensation of heat and reacted due to the action of
Question 39 :
The jelly-like substance between the nucleus and the cell membrane is called ___________.
Question 40 :
Which one of the following term is not a part of the nucleus?
Question 41 :
_______ is an additional covering over the cell membrane in plant cells.
Question 42 :
_______ is an additional covering over the cell membrane in plant cells.
Question 46 :
What is the size of the smallest cell in case of bacteria?
Question 47 :
The entire content of a living cell is known as _________
Question 49 :
Under a microscope Paheli observes a cell that has a cell wall but no distinct nucleus. The cell that she observes is
Question 50 :
Fill in the blanks. The outermost layer of plant cells is the (a) _______ beneath which is the (b)______ . The term (c)_______ refers to the jelly-like substance containing all the (d)______ . The (e)_______ contains thread-like structures called (f)________ .