Answer:
The First answer is C Digestion changes proteins into amino acids
And the secoud answer is D pancreas
D is probably right cos you are comparing data
Answer:
Memory and learning - Cerebrum
General bodily arousal - Cerebellum
Complex mental processes - Cerebral cortex
Connects two halves of brain - Cerebrum
Relax, dream, sleep - Hypothalamus
maintain homeostasis - pons
Regulates body circulation - Medulla
Emotions - Cerebrum
Tells senses - Cerebrum
tells nervous system - Cerebellum
Explanation:
Cerebrum is the largest part of the brain which controls emotion and senses of the body. It controls information of the body. Medulla Oblongata is the part of the brain which is just near the spinal cord. It regulates blood circulation. Hypothalamus is the part of brain which regulates sleep wake cycle of a person.
Answer:
The correct answer will be options
1. The position of the tropomyosin threads shift
2. Exposing myosin binding sites
3. Allowing the myosin head to attach to the actin filament
Explanation:
Calcium plays an important role in the contraction of muscles especially in the formation of the cross-bridge between myosin and actin filaments.
In the presence of calcium, myosin head binds the actin filament as calcium binds to the troponin which changes the configuration of the troponin which releases the tropomyosin from the myosin-binding site on actin.
Once the myosin binding site is freed, myosin binds the site and causes muscle contraction due to ATP hydrolysis.
Thus, the selected options are the correct answer.
