The complete question is as follows:
1. What does a surface area/volume ratio of 6:1 mean for the cell’s ability to get the materials it needs that move across its surface?
2. What does a surface area/volume ratio of 3:1 mean for a cell’s ability to get materials across its membrane, compared to the cell with a ratio of 6:1?
Answer:
1 . Surface area to volume ratio = 3 : 1
surface area= 3 cm³ or (l = 1 cm) (1 cm x 1 cm x 3) (W = 3)
volume= 1 cm³ (1cm x 1cm x 1cm)
2. Surface area to volume ratio = 6 : 1
surface area= 6 cm³ or (1 cm x 1 cm x 6 ) (w= 6)
volume= 1 cm³
Diffusion increases with the increase in surface area to volume ratio through the semi-permeable membrane of the cell membrane that allows substances to move into the cytoplasm
When antibodies bind antigens, the clumping of antigens results from the antibody having at least two binding regions.
What's the function of the antibody-antigen complex?
Antibodies serve two primary functions: selective binding to antigens to initiate an immune response and activation of other immune system components to combat infections.
- Immunoglobulins' capacity to combat a wide range of diseases is based on their inherent ability to distinguish between distinct antigens.
- Because of their antigen specificity and affinity, antibodies have shown to be a significant and important tool in research, diagnosis, and treatment.
- Although it appears to be a straightforward move, the connection of an antibody and its antigen to form an antigen-antibody complex is made up of a plethora of non-covalent interactions.
Hence, the correct answer is option A
Learn more about antibodies here,
brainly.com/question/13981216
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Answer: Hydrogen bonds
Explanation: The CAS9 enzyme affect the bond between the deoxyribose sugar and the phosphate backbone of the PAM sequence in the target DNA
Sternocleidomastoid muscles.
Explanation:
The neck movements like flexion, rotation, extension, lateral rotation and flexion are carried out by neck muscles which include the sternocleidomastoid muscle,
The sternocleidomastoid muscle is a pair of muscle located superficially in the anterior neck.
The sternocleidomastoid muscles connects skull with the clavicle and hence is involved the head and neck motions.
The `bilateral contraction movements of sternocleidomastoid muscles aids in flexion of the neck and brings the chin down towards the breastbone.
Platysma is a facial muscle and involved in facial expressions and mandibular movements
Semispinalis muscle is in the posterior neck and maintains posture and head movements.
Trapezius muscles lies at the back of the head.
