Muscular Tissue

Q.

ATP and NADPH molecules formed during light reaction are utilised in the dark reaction.

1. True
2. False

Q. The is a muscular organ that pumps blood throughout the body.

1. heart
2. brain
3. kidney

Q. The force of muscle contraction depends on the

1. Number of muscle fibers stimulated
2. Frequency of action potentials in each motor unit
3. Number of motor units stimulated
4. All of the above

Q.

(b)Name five stimuli which act on plants. Name the type of tropism produced by each one of these stimuli.

Q.

Write one word for each of the following:​

(v) A bundle of axons enclosed in a tubular sheath.

Q. Fill in the following blanks :
(c)Plant shoot grows upward in response to

Q.

Give any three differences between Glycolysis and Krebs cycle.

Q. What is the junction between two nerve cells called?

1. Synapse
2. Myelin sheath
3. Dendrites
4. Dendrons

Q.

Why do different cells have different shapes?

1. Cells choose random shape for themselves.

2. Cells get modified according to the function they perform.

3. Cells attain different shapes in response to stress.
4. Different cell shapes are a part of the evolution in the organism.