Control and Coordination (Class - X)
| Description: Control and Co-ordination | |
| Number of Questions: 17 | |
| Created by: Jayanti Mahajan | |
| Tags: Control and Co-ordination Biology X Salts and their Properties Salts and their Properties Plant Hormones and their Role Control and Coordination Growth Movements in Plants |
Which of the following hormones is/are responsible for the phototrophic and geotropic responses in plants?
A few plant hormones promote growth in plants. Which of the following hormones promote(s) growth in plants?
a. Auxins b. Cytokinins c. Abscisic acid
Which of the following statements is/are false?
a. In nasties, the direction of movement is not determined by the direction of stimulus. b. Gibberellins promote the wiltering and falling of leaves. c. The roots of a plant are negatively phototrophic.
Leaf tendrils and stem tendrils are the two types of tendrils. Which of the following plants have leaf tendrils that are positively thigmotropic?
a. Peas b. Passion flower c. Glory lily d. Bottle gourd
A receptor is sensitive to a particular type of stimulus. Which of the following is the function of olfactory receptors?
Which of the following neurons transmit impulses from the central nervous system towards the muscle cells?
a. Relay neurons b. Sensory neurons c. Motor neurons
The function of which of the following nerves is to connect the muscles and skin to the spinal cord?
a. The cranial nerves b. The spinal nerves c. The visceral nerves
Match the following:
| Types of tropism | Stimulus |
| a. Thigmotropism | 1. Light |
| b. Geotropism | 2. Touch |
| c. Phototropism | 3. Gravity |
Which of the following is/are a part of the central nervous system?
a. The brain b. The spinal cord c. The nerves of the body
Which of the following statements is/are false?
a. The shorter fibres on the body of a neuron are called axon. b. The axon passes the nerve impulses to another neuron through a junction called synapse. c. Muscles and glands are the main effectors of the human body.
The brain is broadly divided into three regions. Which of the following form a part of the hindbrain?
a. Pons b. Cerebrum c. Cerebellum d. Medulla
The function of which of the following is to control the reflex movements of the eye muscles, changes in pupil size and shape of the eye lens?
Which of the following glands do not have both exocrine and endocrine functions?
a. Adrenal glands b. Pancreas c. Hypothalamus d. Ovaries
The hormones released from which of the following glands prepares the body for emergency situations like danger, anger, excitement, etc?
Glands secreting its product into a duct are called exocrine glands. Which of the following glands are exocrine glands?
a. Parathyroid glands b. Pancreas c. Sweat glands d. Salivary glands
The function of which of the following hormone is to control the rate of metabolism of carbohydrates, fats and proteins in the body?
Which of the following hormones controls the uterus changes in menstrual cycles and also helps in maintaining pregnancy?