Download App

Control and Coordination — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceControl and Coordination2 Marks
Question
Define phototropism. Give one example of phototropism.
✓

Answer

Phototropism – The movement of a plant part in response to light is called phototropism.
Example - Stem bends towards the light is positive phototropism.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "[2 Mark Questions]" from Control and Coordination→Control and Coordination — all question types→Science STD 10 question papers→CBSE Board STD 10 question papers→CBSE Board question paper generator→

Similar questions

State three characteristics of the image formed by a convex mirror.
→
Draw a ray diagram to show the path of the reflected ray corresponding to an incident ray which is directed towards the principal focus of a convex. mirror. Mark on it the angle of incidence and the angle of reflection.
→
A white powdery substance having strong smell of chlorine is used for disinfecting drinking water supply at waterworks. Identify the substance. Give its chemical name and write the chemical reaction for its preparation.
→
The refractive indices of glass and water with respect to air are 3/2 and 4/3 respectively. If speed of light in glass is 2×108 m/s, find the speed of light in water.
→
An element X is in group 2 of the periodic table:
  1. What will be the formula of its chloride?
  2. What will be the formula of its oxide?
→
Define kilowatt-hour. How many joules are there in one kilowatt-hour?
→
A student places a candle flame at a distance of about 60 cm from a convex lens of focal length 10 cm and focuses the image of the flame on a screen. After that he gradually moves the flame towards the lens and each time focuses the image on the screen.
  1. In which direction-toward or away from the lens, does he move the screen to focus the image?
  2. How does the size of the image change?
  3. How does the intensity of the image change as the flame moves towards the lens?
  4. Approximately for what distance between the flame and the lens, the image formed on the screen is inverted and of the same size?
→
In what ways is fertilisation in a plant:
  1. Similar to fertilisation in a human?
  2. Different from fertilisation in a human?
→
‘‘A concave mirror of focal length 15cm can form a magnified erect as well as inverted image of an object placed in front of it.’’ Justify this statement stating the position of the object with respect to the pole of the mirror in both cases for obtaining the images.
→
An object is placed at a distance of 15 cm from a concave lens of focal length 30 cm. List four characteristics (nature, position, etc.) of the image formed by the lens.
→