Chapter 15

What occurs due to the plants growth and development? (a) Leaves, flowers, fruits, etc., arise in an orderly pattern (b) Increase in girth (c) Falling of leaves and fruits (d) All the above

Development consists of (a) Growth (b) Differentiation (c) Both (a) and (b) (d) None of these

Which of the following is correct about the development of a mature plant from a zygote? (a) Follows a precise and ordered succession of events (b) Only differentiation occurs (c) Occurs due to environmental effect only (d) None of the above

What kinds of factors govern a plant's developmental process? (a) Intrinsic factors (b) Extrinsic factors (c) Both (a) and (b) (d) None of these

All cells of the plants are descendants of (a) Zygote (b) Seeds (c) gametes (d) Both (b) and (c)

Appearance and fall of fruits occurs due to (a) Hormonal influence (b) Growth and development (c) Differentiation (d) Both (a) and (b)

Which is one of the most fundamental and conspicuous characteristic of living being? (a) Development (b) Differentiation (c) Maturation (d) Growth

What is an irreversible permanent increase in size of an organ or its part or even of an individual cell? (a) Development (b) Differentiation (c) Growth (d) Maturation

Growth is accompanied by (a) Anabolism (b) Catabolism (c) Both (a) and (b) (d) None of these

Metabolism occurs on the expense of (a) Nutrition (b) Water (c) Energy (d) Hormones

If expansion of leaf occurs, it is known as (a) Swelling (b) Imbibitions (c) Differentiation (d) Growth

Why the growth of a plant is unique? (a) The plant retains the capacity of unlimited growth. (b) The plant can regenerate the same characters. (c) There is no change in offspring's characters. (d) None of the above

The unique ability to retain the capacity of growth in plants is due to the presence of (a) Lifetime differentiation (b) Activator hormones (c) Chlorophyll to utilize energy lifetime (d) Meristems at certain locations

What is the special feature of meristem? (a) It is present in every tissue (b) Its capacity to divide (c) Its capacity to self-perpetuate (d) Both (b) and (c)

Cells that further make up the plant body (a) Loose capacity to divide (b) Loose capacity to grow (c) Loose capacity to differentiate (d) None of these

Continued growth due to activity of meristem is which type of growth? (a) Closed growth (b) Open growth (c) Both (a) and (b) (d) None of these

Meristems are found in (a) Root apex (b) Shoot apex (c) Both (a) and (b) (d) None of these

Meristems are responsible for (a) Secondary growth (b) Primary growth (c) Both (a) and (b) (d) None of these

What is the contribution of meristem in growth of plant? (a) Elongation along the axis (b) Differentiation (c) Both (a) and (b) (d) None of these

Secondary growth of plant occurs due to (a) Lateral meristems (b) Vascular cambium (c) Cork cambium (d) All of these

At cellular level, growth is an (a) Increase in cytoplasm (b) Increase in size (c) Increase in nuclear size (d) Increase in protoplasm

Which of the following is not the parameter for measuring growth? (a) Wet weight (b) Dry weight (c) Volume (d) Cell member

In question 23 and 24 respectively growth can be expressed as increase in cell. (a) Size, number (b) Volume, size (c) Number, size (d) Size, volume

Growth of pollen tube is measured in terms of (a) Weight (b) Width (c) Volume (d) Length

Growth of a dorsiventral leaf can be measured in terms of (a) Length (b) Width (c) Volume of cells (d) Surface area

Which of the following are phases of growth? (a) Meristemation (b) Elongation (c) Maturation (d) All of these

Which of the following represent meristematic phase of growth? (a) Root apex (b) Shoot apex (c) Both (a) and (b) (d) None of these

Which of the following represent meristematic phase of growth? (a) Root apex (b) Shoot apex (c) Both (a) and (b) (d) None of these

Which of the following is not the characteristics of cell wall of meristematic cells? (a) Primary in nature (b) Cellulosic (c) Abundant plasmodesmata (d) None of these

Where can we find cells representing the phases of elongation? (a) Root Apex (b) Shoot Apex (c) Cells proximal to both (d) All of these

Which of the following is not the characteristic of the cells in elongation phase? (a) Cell enlargement (b) New cell wall deposition (c) Decrease in volume (d) Both (a) and (b)

Cells proximal to the phase of elongation show (a) Meristematic phase (b) Maturative phase (c) Elongation phase (d) All of these

Cells of maturative phase show (a) Thickening of walls (b) Protoplasmic modification (c) Both (a) and (b) (d) None of these

Increased growth per unit time is called (a) Growth rate (b) Growth speed (c) Both (a) and (b) (d) None of these

The growth rate shows an increase that can be (a) Mathematical (b) Arithmetic (c) Geometrical (d) Both (b) and (c)

Slow initial growth is called (a) Log phase (b) Lag phase (c) Exponential phase (d) None of these

The rapidly increase in growth after showing initial period is called (a) Log phase (b) Leg phase (c) Both (a) and (b) (d) None of these

What is the speciality of the cells after mitotic cell division in geometric growth? (a) Thickened cell wall (b) Occurring of well organized growth (c) Retaining the ability to divide (d) None of these

Stationary phase occurs due to (a) Increase in distance (b) Limited nutrient supply (c) Thickening of cell wall (d) None of these

Geometrical growth graphically shows (a) Linear curve (b) Sigmoid curve (c) Both one by one (d) Straight line

Living organism growing in a natural environment can be found graphically by the presence of (a) Sigmoid curve (b) Linear curve (c) Straight line (d) All of these

Sigmoid curve is typical for which components of plant body? (a) Cells (b) Tissue (c) Organs (d) All of these

Exponential growth can be expressed as (a) \(\mathrm{W}_{1}=\mathrm{W}_{0} \mathrm{e}^{\mathrm{rt}}\) (b) \(\mathrm{W}_{0}=\mathrm{W}_{1} \mathrm{e}^{\mathrm{rt}}\) (c) \(\mathrm{W}_{1}=\mathrm{W}_{0} \mathrm{e}^{\Delta \mathrm{tt}}\) (d) None of these

In expression of exponential growth ' \(\mathrm{r}\) ' is referred to as (a) Growth rate (b) Efficiency index (c) Both (a) and (b) (d) Time of growth

Quantitative comparisons can be made by (a) Absolute growth rate (b) Relative growth rate (c) Both (a) and (b) (d) None of these

Measurement and comparison of total growth per unit time is called (a) Absolute growth rate (b) Relative growth rate (c) Both (a) and (b) (d) None of these

The growth of the given system per unit time which is expressed on a common basis or per unit initial parameter is known as (a) Absolute growth rate (b) Relative growth rate (c) Both (a) and (b) (d) None of these

Which of the following are not essential elements for growth? (a) Water (b) Oxygen (c) Both (a) and (b) (d) None of these

Cell enlargement mainly requires (a) Oxygen (b) Water (c) Nutrients (d) None of these

Extension of growth is supported by (a) Oxygen (b) Turgidity (c) Osmosis (d) Imbibitions