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3 years ago

Please help! #35 and #36 asap! Will mar k brainliesttt whoever explains thoroughly please

Biology

1 answer:

Maksim231197 [3]3 years ago

7 0

35. The paragraph at the top of the page tells you "Catalase [is] a biological catalyst produced by cells [that] speeds the breakdown of hydrogen peroxide."

Of course, you know that, in general, a catalyst is a substance that facilitates a chemical reaction without being used up as a result of that reaction.

36. Catalase is most active at the temperature of 35 °C. (This is not unexpected, as 35 °C is near the temperature considered to be normal body temperature (37 °C).) The table and the corresponding graph show this to be the case.

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Which words or phrases describe characteristics of quartzite? Check all that apply.

Strike441 [17]

Answer:

hey you!

Explanation:

Quartzite

Quartzite is a metamorphic rock formed when quartz-rich sandstone or chert has been exposed to high temperatures and pressures. Such conditions fuse the quartz grains together forming a dense, hard, equigranular rock. The name quartzite implies not only a high degree of induration (hardness), but also a high quartz content. Quartzite generally comprises greater than 90% percent quartz, and some examples, containing up to 99% quartz, and are the largest and purest concentrations of silica in the Earth's crust. Although a quartz-rich sandstone can look similar to quartzite, a fresh broken surface of quartzite will show breakage across quartz grains, whereas the sandstone will break around quartz grains. Quartzite also tends to have a sugary appearance and glassy lustre. The variety of colours displayed by quartzite are a consequence of minor amounts of impurities being incorporated with the quartz during metamorphism. Although quartzite can sometimes appear superficially similar to marble, a piece of quartzite will not be able to be scratched by a metal blade, and quartzite will not fizz on contact with dilute hydrochloric acid.

Texture - granular.

Grain size - medium grained; can see interlocking quartz crystals with the naked eye.

Hardness - hard.

Colour - variable - pure quartzite is white but quartzite exists in a wide variety of colours.

Mineralogy - quartz.

Other features - generally gritty to touch.

Uses - pure quartzite is a source of silica for metallurgical purposes, and for the manufacture of brick; as aggregate in the construction and roading industries; as armour rock for sea walls; dimension stone for building facings, paving etc.

New Zealand occurrences - northwest Nelson (Aorere).

8 0

3 years ago

Read 2 more answers

What is the probability that each of the following pairs of parents will produce the indicated offspring? (Assume independent as

ASHA 777 [7]

Answer:

(a) AABBCC × aabbcc->AaBbCc → 1

(b) AABbCc × AaBbCc->AAbbCC → 1/32

(d) aaBbCC × AABbcc->AaBbCc → 1/2

Explanation:

In such cases we calculate the probability of each allelic pair separately.

(a) AABBCC × aabbcc -> AaBbCc

Aa Aa Aa Aa Bb Bb Bb Bb Cc Cc Cc Cc

↓ ↓ ↓

4/4 = 1 4/4 = 1 4/4 = 1

In case of gene A, out of the 4 probable allelic combinations, 4 will be Aa so the probability is 4/4 = 1.

In case of gene B, out of the 4 probable allelic combinations, 4 will be Bb so the probability is 4/4 = 1.

In case of gene C, out of the 4 probable allelic combinations, 4 will be Cc so the probability is 4/4 = 1.

So, the total probability of getting AaBbCc = 1 x 1 x 1 = 1.

(b) AABbCc × AaBbCc -> AA bb CC

AA AA Aa Aa BB Bb Bb bb CC Cc Cc cc

↓ ↓ ↓

2/4 1/4 1/4

In case of gene A, out of the 4 probable allelic combinations, 2 will be AA so the probability is 2/4.

In case of gene B, out of the 4 probable allelic combinations, 1 will be bb so the probability is 1/4.

In case of gene C, out of the 4 probable allelic combinations, 1 will be CC so the probability is 1/4.

So, the total probability of getting AA bb CC = 2/4 x 1/4 x 1/4 = 1/32.

AA Aa Aa aa BB Bb Bb bb CC Cc Cc cc

↓ ↓ ↓

2/4 2/4 2/4

In case of gene A, out of the 4 probable allelic combinations, 2 will be Aa so the probability is 2/4.

In case of gene B, out of the 4 probable allelic combinations, 2 will be Bb so the probability is 2/4.

In case of gene C, out of the 4 probable allelic combinations, 2 will be Cc so the probability is 2/4.

So, the total probability of getting AaBbCc = 2/4 x 2/4 x 2/4 = 1/8.

(d) aaBbCC × AABbcc->AaBbCc

Aa Aa Aa Aa BB Bb Bb bb Cc Cc Cc Cc

↓ ↓ ↓

4/4 = 1 2/4 4/4 = 1

In case of gene A, out of the 4 probable allelic combinations, 4 will be Aa so the probability is 4/4 = 1.

In case of gene B, out of the 4 probable allelic combinations, 2 will be Bb so the probability is 2/4.

In case of gene C, out of the 4 probable allelic combinations, 4 will be Cc so the probability is 4/4 = 1.

So, the total probability of getting AaBbCc = 1 x 2/4 x 1 = 1/2.

5 0

3 years ago

In a cohort study, a scientist collects health data on a group of people born in 1976. What characteristic was used to form the

PilotLPTM [1.2K]

Age. Apex.
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4 0

2 years ago

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The respiratory system is responsible for the exchange of oxygen with which gas?.

GuDViN [60]

Answer:

CO₂, also known as carbon dioxide

Explanation:

In the alveoli, oxygen enters the bloodstream, and carbon dioxide exits, the latter to be exhaled from the lungs.

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2 years ago

During diffusion molecules move in what type of motion

Vikentia [17]

During diffusion the molecules move in constant random motion. The net movement of a substance from a region where it has a higher concentration to a region where it has a lower concentration, due to random molecular motion, is called diffusion. Diffusion is a widespread and important process which occurs in both living and non-living systems.

8 0

3 years ago

Read 2 more answers