BIOLOGY HIGH SCHOOL

What is the process by which the chemical reactants for the light dependent reactions of the photosynthesis enter a chloroplast?

Answers

Answer 1

Answer: It is called photolysis

Correct Answer is (3)

Explanation:

(3) In order to survive, all organisms must carry out enzyme-controlled reactions.

Enzymes is the Most of the responses that happen in living life forms are chemical controlled.
They are along these lines explicit in the responses that they catalyze one chemical will respond with particles of one substrate.
The site of the response happens in a territory on the outside of the protein called the active site.
Enzymes can be influenced by an assortment of elements, for example, temperature, pH, and focus.
Chemicals work best inside explicit temperature and pH ranges, and imperfect conditions can make a protein lose its capacity to tie to a substrate.
The most of the enzyme has an optimum pH range.

Describe the origin of each strand of the new double helices created after DNA replication

Answers

The origin of each strand of the new double helices created after DNA replication - Each of the newly replicated helices is formed from a semi-conservative parent strand, and one daughter strand.

DNA replication is a part of reproduction, it is important is so every cell has the same set of DNA.

Each newly synthesized strand of DNA (daughter strand) is made by the addition of a nucleotide that is complementary to the parent strand of DNA.
In this way, DNA replication is semi-conservative, meaning that one parent strand is always passed on to the daughter helix of DNA.

Thus, The origin of each strand of the new double helices created after DNA replication - Each of the newly replicated helices is formed from a semi-conservative parent strand and one daughter strand.

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Ok, you know that when DNA molecule is replicated it forms another one which is identical, to the parent strand right? so when the DNA molecule replicates these two strands seperate so each is exposed to the nucleoplasm the left strand then attracts its complementary bases from the nucleoplasm and that happens with the right strand. as a result there is now 2 DNA molecules so to nswer your question, the daughter strand is formed from one parent strand the other strand from the nucleotides found in the nuceloplasm

In mammals, air enters lungs through tubes called _____, which branch into smaller tubules called _____, which extend out to tiny air sacs called _____.

Answers

In mammals, air enters lungs through tubes called _____, which branch into smaller tubules called _____, which extend out to tiny air sacs called _____.
trachea; bronchioles; spongy tissue
>> bronchi; bronchioles; alveoli
bronchi; alveoli; gills

Answer:

In mammals, air enters lungs through tubes called bronchi, which branch into smaller tubules called bronchioles, which extend out to tiny air sacs called alveoli.

What drives the flow of water through the xylem? Question 4 options: passive transport by the endodermis active transport by tracheid and vessel elements the evaporation of water from the leaves the number of companion cells in the phloem

Answers

Xylem

Explanation:

The flow of water through the xylem is driven by the evaporation of water from the leaves

The xylem of a plant is the system of tubes and transport cells that circulates water and dissolved minerals
Water flows more efficiently through some parts of the plant than others
Water absorbed by roots must cross several cell layers before entering the specialized water transport tissue referred to as xylem
These cell layers act as a filtration system in the root and have a much greater resistance to water flow than the xylem, where transport occurs in open tubes
Once in the xylem tissue, water moves easily over long distances in these open tubes
There are two kinds of conducting elements (i.e., transport tubes) found in the xylem: 1) tracheids and 2) vessels
Tracheids are smaller than vessels in both diameter and length, and taper at each end, vessels consist of individual cells or vessel elements stacked end-to-end to form continuous open tubes
Water movement is passively driven by pressure and chemical potential gradients
The bulk of water absorbed and transported through plants is moved by negative pressure generated by the evaporation of water from the leaves (transpiration)

Brad is testing three solutions with litmus paper after dipping strips in the solutions he observes two papers turning blue and one turning red out of the three solutions how many are acidic

Answers

Out of the three, only 1 is acidic because litmus paper turns red in acidic compounds and blue in basic compounds.

17. Based on what you have learned in this unit so far, was Louis likely born with these errors in his sequence, or did they happen throughout his lifetime? How do you know this?