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Zepler [3.9K]
2 years ago
5

The light-gathering capacity of a telescope is dependent on the:

Biology
1 answer:
Gnom [1K]2 years ago
6 0
Size of human iris?
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In which structure do sperm cells develop?
horrorfan [7]

Answer:

C

Explanation:

You could literally search that up. It's correct though.

"Sperm develop in the testicles within a system of tiny tubes called the seminiferous tubules. At birth, these tubules contain simple round cells. During puberty, testosterone and other hormones cause these cells to transform into sperm cells."

6 0
3 years ago
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Aminolevulinate dehydratase (ALAD ) is an enzyme that relies on zinc as a coenzyme. A zinc ion binds to the ALAD active site, wh
slavikrds [6]

Answer:

The correct option is C. It changes the three-dimensional structure of the active site so that ALAD is no longer compatible with its substrate.

Explanation:

Co-factors are molecules that are required by an enzyme to perform its function of catalysis. If a wrong co-factor binds to the enzyme then it will change the three-dimensional structure of the enzyme and the substrate will no longer fit into the enzyme. Hence, Option C is the best choice that explains the inhibition of ALAD.

Other options are false because :

Option A: The wrong co factor will not affect the substrate nor will it make it compatible for ALAD's active site.

Option B:  The wrong factor doesn't change the amino acid sequence of the protein or enzyme, rather it changes the three dimensional structure of the enzyme.

Option D : The wrong co factor won't allow the reaction to proceed at a faster rate, rather it will inhibit the reaction.  

6 0
2 years ago
The tall woman was a (professional) athlete who always (laughed) during scary movies. choose the two antonyms for the (bracketed
TEA [102]
<span>The tall woman was an amateur athlete who always cried during scary movies. Antonyms are words which mean the opposite of the bracketed word, and so amateur is the opposite of professional and cried is the opposite of laughed.</span>
4 0
3 years ago
Which transport process always involves the movement of materials from inside the cell to outside the cell?
katrin2010 [14]
C. exocytosis (I have to use 20 characters to respond and "answer it well". Exo means out/outside and exocytosis is an active transport system where a cell uses energy to transport material, like protein or waste, from inside a cell to the outside.) 
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3 years ago
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27. some farmers use manure on their crop fields. how does this help the plants?
Marina86 [1]
Manure supplies plants instantly with nitrogen, phosphorus, potassium and other nutrients by warming the soil
8 0
3 years ago
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