Free Tissues 01 Practice Test - 9th Grade
Question 1
Which among the following is the correct set of examples of tissues?
SOLUTION
Solution : B
A group of similar cells with a common origin specialised to perform a common function are called tissues. E.g., Blood, phloem, muscle, xylem, etc. Various tissues organise to form an organ. Organs, such as heart, lungs, stomach, kidneys, skin, liver, etc are made up of two or more types of tissues organised to serve a particular function. The organs organise to form an organ system.
Question 2
Based on which of the following criteria, plant tissues are categorised into meristematic and permanent tissues?
Ability to undergo photosynthesis
Ability to divide actively
Ability to move
Complexity to perform a function
SOLUTION
Solution : B
Plant tissues are broadly classified into meristematic and permanent tissues, based on their ability to divide. Meristematic tissues are group of cells, which have the ability to divide. This tissue consists of small, cuboidal and densely packed cells, which keeps on dividing to form new cells. The tissues, which are derived from the meristematic tissues, are called permanent tissues. They are the tissues, which have lost their ability to divide as they have attained their mature form.
Question 3
Cell growth in animals is more uniform as compared to plants.
True
False
SOLUTION
Solution : A
There is no demarcation of dividing and non-dividing regions in animals. Hence, cell growth in animals is more uniform. In plants, growth and active cell multiplication is restricted to meristematic regions.
Question 4
The amount of dead tissue is more in animals than in plants.
True
False
SOLUTION
Solution : B
The amount of dead tissue is more in plants than animals. Many essential functions in plants are attributed to dead tissues. Dead tissue provides support and mechanical strength to plants, e.g., sclerenchyma. Apart from this, the main conducting tissue in plants, xylem is mostly composed of dead cells.
Question 5
Which of the following are characteristics of skeletal muscles?
SOLUTION
Solution : A, B, and C
Skeletal muscles are made up of long and cylindrical cells. They are multinucleate (having many nuclei) and unbranched. They are also known as striated muscles because they have alternate dark and light bands. They move as per our will, hence they are categorised as voluntary muscles. They are mostly attached to bones. They help in body movements.
Question 6
Which of the following tissue forms the inner lining of blood vessels?
Nervous tissue
Epithelial tissue
Connective tissue
Muscular tissue
SOLUTION
Solution : B
The covering or protective tissues in the animal body are epithelial tissues. Epithelium covers most organs and cavities such as the skin, the lining of the mouth, the lining of blood vessels, lung alveoli and kidney tubules.
Question 7
Deepa observed two slides of plant tissues. She was told one contained parenchyma cells, while the other slide had sclerenchyma cells. How can she confirm the slide with sclerenchyma cells?
By the presence of cells with a large central vacuole.
By the presence of green colour pigment called chlorophyll.
By the presence of cells with thick cell walls.
By the presence of cells with many nuclei.
SOLUTION
Solution : C
Sclerenchyma is a dead simple permanent tissue in plants. The walls of sclerenchyma cells are thick due to the deposition of a complex sugar called lignin. For example, husk of a coconut. Parenchyma tissue on the other hand, is a living tissue. It consists of relatively unspecialised cells with thin cell walls.
Question 8
Which among the following is lined with squamous epithelium?
SOLUTION
Solution : A
Squamous epithelial cells are extremely thin and flat. They form a delicate lining. Oesophagus, lining of mouth, lining of blood vessels., etc are covered with squamous epithelium. Here the transportation of substances occurs through a permeable membrane.
Question 9
Identify the type of simple permanent tissue.
(i) The cells of this tissue are dead.
(ii)The cell walls are thickened due to lignin.
SOLUTION
Solution : D
Sclerenchyma is the tissue which makes the plant hard and stiff. The husk of a coconut is made of sclerenchymatous tissue. The cells of this tissue are dead. They are long and narrow as the walls are thickened due to lignin.
Question 10
Tina observed a permanent slide of a plant tissue with thin walled cells, loosely packed with large intercellular spaces. Identify the tissue.
Parenchyma tissue
Epithelial tissue
Sclerenchyma tissue
Aerolar tissue
SOLUTION
Solution : A
Parenchyma cells have thin walls. They are live cells. They are usually loosely packed, and large intercellular spaces are found in this tissue. Therefore, the slide consists of parenchyma cells.
Sclerenchyma is the tissue which makes the plant, hard and stiff. Aerolar tissue and epithelium are animals tissues.