Questions
Why is there no demarcation of dividing and non-dividing regions in animals?
- Animals are symmetrical.
- Cell growth is uniform in animals.
- Movement in animals is uniform.
- Most of the tissues are dead in animals.
- None of these
Plant tissues in which cells keep on dividing are called meristematic tissues, one of which is apical meristem. Where is this tissue present?
- Root apex and stem apex
- Flower buds
- Leaf buds
- Both (2) and (3)
- All of the above
Why do animals consume more energy than plants?
a. Plants are stationary and animals move around.
b. Animal body is bulkier than plant body.
c. Most of the tissues in plants are dead, unlike animals.
d. Structural organisation of organs in animals is more specialised.
- Only a and d
- Only a and c
- Only b and c
- Only b and d
- Only c and d
Which of the following statements regarding the meristematic tissues is false?
- They have dense cytoplasm.
- They have big vacuoles.
- Lateral meristem is responsible for growth in the girth.
- They are of three types.
- None of these
In which of the following tissues can the differentiation process be seen?
- Complex permanent tissue
- Parenchyma tissue
- Meristematic tissue
- Collenchyma tissue
- None of these
Which of the following parenchyma tissues has chlorophyll and carries out photosynthesis?
- Aerenchyma
- Collenchyma
- Chlorenchyma
- Sclerenchyma
- None of these
The opening and closing of stoma is controlled by two guard cells, which are
- leaf-shaped
- kidney-shaped
- circular in shape
- finger-shaped
- None of these
In which of the following elements of the vascular tissue are the cells dead?
- Sieve tube
- Tracheids
- Companion cells
- Phloem fibres
- All of the above
Coconut husk is an example of which of the following tissues?
- Sclerenchyma
- Collenchyma
- Chlorenchyma
- Aerenchyma
- None of these
In which of the following parts is the soft connective tissue having widely spaced cells not present?
- Ears
- Nose
- Trachea
- Arms
- None of these
Where is the areolar connective tissue not found?
- Beneath the dermis layer
- In the bone marrow.
- It is a component of the lamina propria of the digestive and respiratory tracts.
- It is a key component of membranes.
- All of the above
Which of the following characteristics do the muscles of the iris of human eye not have?
- The cells are long with pointed ends.
- They have a single nucleus.
- They are unstriated.
- They are involuntary.
- None of these
Why is blood called a connective tissue?
a. It carries food and oxygen to all the cells.
b. It connects bones and muscles.
c. It collects waste from all the parts of the body to liver and kidney.
d. It connects bones to bones.
- Only a and b
- Only c and b
- Only a and c
- Only b and d
- None of these
Which of the following parts of a neuron receives the nerve impulse?
- Cyton
- Dendrites
- Axon
- Nucleus
- None of these
Which of the following is not a type of the epithelial tissue that forms the covering or lining of most of the organs?
- Areolar
- Simple
- Cuboidal
- Stratified
- Columnar