Skip to content 1 You may have noticed that fibres of coconut husk are hard and brittle, whereas the leaf stalks of coriander are soft and flexible.
SA (Short)
2 Why do you think that a thick cuticle on the outer wall of epidermis is advantageous for a plant living in the desert but disadvantageous for a plant living underwater?
SA (Short)
3 Look at the picture given below.
SA (Short)
4 Meristematic tissues divide repeatedly.
MCQ (Multiple Choice)
5 Once water is absorbed by plant roots, it has to travel against gravity through xylem.
SA (Short)
6 What do you think will happen if there were no stomata in the epidermis of the stem or leaves?[Pg. No. 34]
SA (Short)
7 If a plant is unable to transport food from leaves to roots, which tissue is malfunctioning?
VS (Very Small)
8 You can perform these two jumps as shown in the figure: Straight-leg jump — Keep knees and ankles stiff.
SA (Short)
9 Which type of joint is involved when you bend your knees and ankles?
MCQ (Multiple Choice)
10 In each of the following cases (A, B, C and D), choose the correct option as given below:
AR (Assertion & Reason)
11 Why are the epithelial tissues that line an animal's internal organs usually only one or a few cells thick?
MCQ (Multiple Choice)
12 Plot a graph between the age of a tree (in years) on the x-axis and the diameter of the tree (in cm) along with the number of annual rings formed over time on the y-axis, using…
CB (Case Based)
13 Aamrapali observed that a young mango sapling's stem bends flexibly during monsoon winds and does not break.
SA (Short)
14 Sohan designed an experiment for the regeneration of sugarcane, where he used cuttings to grow sugarcane.
CB (Case Based)
15 During the discussion in class, Rohan gives a statement that, "A tissue is a group of similar cells performing similar functions".
SA (Short)
16 In a forest, it was observed that one of the trees was severely debarked by an elephant to meet its food requirements, as the bark is a rich source of nutrients (given in the…
CB (Case Based)
17 Coconut husk fibres are used for mats which are tough and fibrous.
SA (Short)
18 A plant cell and an animal cell are of the same size.
SA (Short)
19 A textbook states, "Each plant tissue performs only one specific function".
LA (Long)
20 Vibha claims to her friend Neha that, "Meristematic cells are located only at the root and shoot apices".
SA (Short)
21 How is the study of cells and tissues significant for understanding the life processes and human welfare?[Pg. No. 28]
SA (Short)
22 How are tissues in plants and animals different, and why?[Pg. No. 28]
SA (Short)
23 How is the division of labour at various levels of organisation in multicellular organisms correlated with their structure and function?
SA (Short)