Biology, 10.10.2021 07:10 andrewcamp99
1. Which event is a direct result of ribosomal activity inside a person cell?
A.) Sugars are broken down to produce energy for cellular processes.
B.) The synthesis of myosin and actin allow muscles to contract and expand.
C.) Nutrients are transported through the membrane into the cytoplasm.
D.) The cells DNA is duplicated
2. what benefit is provided by the manifolds in a cells mitochondria?
A.) The folds increase the surface area, which increases the synthesis of ATP
B.) The fold provide structures for ATP synthesis proteins to latch onto
C.) The folds protect the proteins responsible for synthesizing ATP from outside influences
D.) The folds slow down the production of ATP so that it doesn’t overwhelm the cell
NO LINKS PLEASE
Answers: 1
Biology, 22.06.2019 10:30, alexianunez15
Which of the following is a good definition for the word adaptation? question 1 options: a trait that an organism survive and reproduce in its environment. a change in an organism's environment. the way in which animals obtain food. a temperature change that can cause the extinction of plants and animals.
Answers: 2
Biology, 22.06.2019 13:00, mimivenga
Astudy by solloch and et. al., in 2017, gives the map above which shows the frequency of alleles with a ccr5-delta32 mutations over 87 different countries. this mutation deletes the presence of a co-receptor (ccr5) on the outside of human t-cells (lymphocytes). some viruses, such as the one responsible for the black death and human immunodeficiency virus (hiv), require this receptor for attachment to host cells during the infection process. the black death was an epidemic that passed over northern europe during the 14th century killing nearly 60% of europeans. according to this information, which explanation best explains why northern europeans show a greater immunity for hiv than some other parts of the world?
Answers: 1
Biology, 22.06.2019 13:20, abolton04
Imagine a self-reactive t cell that has not undergone clonal deletion in the thymus (that is to say, it has escaped central tolerance). if it encounters self antigen in the absence of an infection or inflammation, what will happen to this self-reactive t cell? (select two answers) (a) the t cell undergoes clonal expansion. (b) the t cell gains effector functions. (c) the t cell undergoes apoptosis. (d) the t cell becomes activated. (e) the t cell becomes anergic.
Answers: 1
1. Which event is a direct result of ribosomal activity inside a person cell?
A.) Sugars are broke...