Consider the following statements:
I: | The head of myosin is made of LMM and the tail is made of HMM |
II: | F Actin is monomeric while G actin is polymeric |
III: | Tropomyosin is composed of three globular proteins |
The incorrect statements are:
1. I and II only | 2. I and III only |
3. II and III only | 4. I, II and III |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
The total number of floating ribs in human skeleton is:
1. | 2 | 2. | 4 |
3. | 6 | 4. | 14 |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
As the distance from Z line to Z line decreases, which bands shorten in a sarcomere?
1. | the I band and H band | 2. | the I band and A band |
3. | the A band and H band | 4. | all bands shorten |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
The joint between atlas and axis vertebra is classified as:
1. | Saddle joint | 2. | Pivot joint |
3. | Gliding joint | 4. | Hinge joint |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
The dark and light bands seen as striations in a skeletal muscle are located on:
1. | Myofilaments | 2. | Muscle fiber |
3. | Myofibril | 4. | Motor unit |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
All the following regarding red muscle fibers are true except:
1. They are adapted for slow and sustained activity
2. They have a high content of myoglobin
3. They are rich in mitochondria
4. They depend on anaerobic process for energy
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
A flat bone present on the ventral midline of thorax is called as:
1. | Hyoid | 2. | Clavicle |
3. | Sternum | 4. | Vertebral body |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
The central part of the thick filaments not overlapped by the thin filaments is called as:
1. | A band | 2. | I band |
3. | H zone | 4. | Sarcomere |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
What protein is arranged along the length of actin filaments and is involved in regulation of skeletal muscle contraction?
1. | Troponin | 2. | Calmodulin |
3. | Tropomyosin | 4. | Light meromyosin |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
During relaxation of a skeletal muscle:
1. | Calcium ions that are bound to troponin C now bind to troponin A |
2. | Cross bridge formation between myosin head and actin takes place |
3. | The A band of the sarcomere lengthens |
4. | Calcium ions are pumped back to the sarcoplasmic cisternae |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.