CHAPTER: 07 CONTROL AND COORDINATION

The gap between two neurons is called

The growth inhibiting hormone In plants is

• a) Auxin

• b) Cytokinins

• c) Abscisic acid

• d) Gibberellins

Gustatory receptor is responsible for detecting the

• a) Taste

• b) Smell

• c) Pressure

• d) Temperature

Involuntary actions such as blood pressure, salivation in a human brain are controlled by:

• a) Cerebrum

• b) Cranium

• c) Hypothalamus

• d) Medulla

The plant hormone which promotes the cell division is

• a) Gibberellin

• b) Auxin

• c) Cytokinin

• d) Abscisic acid

Harmone that causes wilting of leaves is

• a) Auxin

• b) Gibberellin

• c) Abscisic Acid

• d) Cytokinin

Blood pressure and salivation are controlled by

• a) Cerebrum

• b) Cerebellum

• c) Hypothalamus

• d) Medulla

In reflex action, the reflex arc, is formed by:

• a) Receptor - Spinal cord – Muscle

• b) Spinal cord - Receptor – Muscles

• c) Muscles - Receptor – Brain

• d) Muscles - Spinal cord - Brain

The hormone that promotes cell division in plants is

• a) Auxin

• b) Gibberellin

• c) Cytokinin

• d) Ethylene

The correct sequence in the pathway of ‘Reflex Are’ is

• a) Receptor → Sensory neuron→ Repay neuron → Motor neuron → Effector

• b) Receptor → Relay neuron → Sensory neuron → Motor neuron → Effector

• c) Receptor → Motor neuron → Relay neuron → Sensory neuron → Effector

• d) Receptor → Sensory neuron → Motor neuron → Relay neuron → Effector