Answer:
A phosphate backbone is the portion of the DNA double helix that provides structural support to the molecule. DNA consists of two strands that wind around each other like a twisted ladder. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups.
The answer is D.
Species diversity has been increasing through decades of years.
The brain is divided into lobes that carry out different kinds of functions. There are 5 lobes in the brain:
1. Frontal lobe: Concentration, planning, problem solving, etc are the function performed by this region of the human brain.
2. Parietal lobe: Touch, pressure, taste and body awareness is processed by this lobe.
3. Temporal lobe: Long-term memory, hearing, emotions are processed in this lobe.
4. Occipital lobe: Sight is processed in this lobe.
5. Cerebellum: Coordination and balance, fine motor control are performed by this part of the brain.
The modern neuroscience has also confirmed the presence of brain waves like the alpha, beta, theta and gamma rhythm that sweep across the different lobes and regions of the brain. These waves are known to result from the collective activity of neurons in each of the regions. The brain waves are studied to check the activity of the regions that are coordinating together to carry out a particular type of task.
Answer:
The correct answer is- Organ, organelles
Explanation:
Cells comes together and make tissue and different tissue organized to form an organ. So organs are made up of a group of two or more tissue type which perform specific function in an organism. For example, the heart pumps the blood, kidney which filters the blood.
Organelle are microscopic structures in the cell for example nucleus, Golgi, endoplasmic reticulum. Each organelle performs a specific function like organs. Eukaryotes have membrane-bound organelles and prokaryotes lack membrane-bound organelles. Therefore the correct answer is organs and organelle.
Answer: Option A
Explanation:
The correct statement is that the there is a difference in protein which is found in the outer membrane and inner membrane of the mitochondria.
The inner membrane of the mitochondria is folded to allow maximum surface area for the energy production.
The inner part of the mitochondria contains the enzyme ATPase for energy production.
The outer membrane of the mitochondria contains enzymes for the export and import of the various materials with the help of TOM40 complex and TIM23 complex.
