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iogann1982 [59]
3 years ago
12

When does anterior lobe of pituitary gland secrets LH HORMONE

Biology
1 answer:
ryzh [129]3 years ago
8 0
LH hormone is secreted by Pituitary but under control of GnRH by hypothalamus in both males and females!

@ There are many roles of it but one necessary role in

@Female is during LH surge !!
LH surge stimulates ovulation on mid of 28day cycle.

@In Males ; it stimulates production of testosterone !!

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Need this ASAP!!HELP!!
djverab [1.8K]

Answer:

The cells belong to the tissue level of organization

Explanation:

Living organisms are composed of four levels of organization; the cell, tissues, organs and organ systems.

The cell is the basic unit of life  and the smallest level of organization.

Tissues are group of cells with a common origin which work together to perform a similar function.

Organs are composed of different types of tissues and perform various complex functions. in the organism.

Organ systems are groups of organs that perform similar functions or which work together for a specific function.

A plant leaf is an organ which is made up of various tissues such as the dermal, vascular and ground tissues.

The dermal cells known as the epidermis belong to the tissue level of organization as they perform a similar function of protecting against mechanical injury and invasion by microorganisms

4 0
3 years ago
When an animal moves, which energy transformation takes place?
Xelga [282]

Explanation:

option D is the correct answer ..

hope this will be helpful to you .

plz mark my answer as brainlist if you find it useful

4 0
3 years ago
Describe how algal blooms form.
kifflom [539]

Answer:

Algal blooms occur when algae multiply very quickly. Blooms can form in waters that are rich in the nutrients the algae need to grow, such as nitrogen, phosphorous, and iron. ... Blooms may become more frequent as the earth warms and the levels of nutrients in our waters increase.

6 0
3 years ago
Contrast the electron transport chain in photosynthesis with the one in cellular respiration by identifying sources of the high-
nlexa [21]

Respiration:

The respiratory chain detailed here is that of mammalian mitochondria:

NADH → NADH dehydrogenase → ubiquinone (coenzyme Q10) → coenzyme Q-cytochrome c reductase → cytochrome c → cytochrome c oxidase → O2;

succinate → succinate dehydrogenase → ubiquinone (coenzyme Q10) → coenzyme Q-cytochrome c reductase → cytochrome c → cytochrome c oxidase → O2.

It consists of the following elements:

The high transfer potential electrons of NADH are transmitted to coenzyme Q10 (ubiquinone) by NADH dehydrogenase, or complex I. Reduced coenzyme Q10 is ubiquinol Q10H2.

The electrons with a high succinate transfer potential are transferred to coenzyme Q10 by succinate dehydrogenase, or coenzyme II, also giving ubiquinol Q10H2.

Ubiquinol Q10H2 transfers its electrons to two cytochromes c under the action of coenzyme Q-cytochrome c reductase, or complex III.

Four cytochromes c each transfer their electron to an oxygen molecule under the action of cytochrome c oxidase, or complex IV. Two molecules of water are formed.

Each of these four respiratory complexes has an extremely complex structure partially included in the internal mitochondrial membrane. Apart from the complex II, they are proton pumps. The electrons circulate between these structures on liposoluble or hydrophilic electron transporters depending on the case.

Photosynthesis:

Photophosphorylation is the equivalent, for photosynthesis, of oxidative phosphorylation for cellular respiration. It constitutes the "light phase" of photosynthesis, that is, it groups together light-dependent reactions.

In plants, photophosphorylation occurs in the membrane of thylakoids, within chloroplasts:

H2O → photosystem II (P680) → plastoquinone → cytochrome b6f complex → plastocyanine → photosystem I (P700) → ferredoxin → ferredoxin-NADP + reductase → NADP +;

cyclic photophosphorylation: (ferredoxin →) plastoquinone → cytochrome b6f complex → plastocyanine → photosystem I (P700) → ferredoxin (→ plastoquinone).

Contrast:

<u>What he has in common is:</u>

*The sequence of several complex membrane proteins transporting electrons.

*The conversion of DNA into ATP.

<u>The differences</u> are in the transport proteins themselves, as well as the direction of H + flux (to the cytoplasm for photosynthesis, and to the mitochondrial matrix in respiration).

8 0
3 years ago
What animal lives in the yangtze river and is represented by its own rare xingyiquan form?.
Amanda [17]

Answer:

Giant Softshell Turtle

Explanation:

7 0
2 years ago
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