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Anit [1.1K]
3 years ago
5

Ort-Answer QuestionsHow can you say that cutting of paper is a physical change?​

Biology
1 answer:
Andreas93 [3]3 years ago
6 0

Answer:

Physical change means that only the form / shape of the substance is changed , not the chemical properties. So here, cutting of paper is a physical change since it's shape is changed but the chemical properties remain the same.

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Membrane receptors are used by which types of hormones?
Ivahew [28]

Answer:

Lipid insoluble hormones/Peptide hormones

Explanation:

Hormones produce their effect by binding to speific receptor. These receptors may be intracellular or membranal.

Membrane receptors;

The lipid insoluble hormones cannot cross the plasma membrane thus their receptors are found on plasma membrane. These are usually peptide hormones.

Examples; Insulin.

Intracellular receptors;

The lipid soluble hormones can cross the plasma membrane thus their receptors are found in cytoplasm. These are usually steroidal hormones.

Example; Testosterone.

5 0
3 years ago
A person is standing with a drawn bow and arrow. He is aiming it at a bull's-eye. What type of energy is being described?
Leya [2.2K]
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Read 2 more answers
What was one major source of conflict during the civil rights movement of the 1940s to 1950s?
Fofino [41]
One major source of conflict during civil rights movement of 1940 and 1950 is letter B. race r iots in new york and detroit. Detroit, New York and Texas ri ots are the major ri ots on that time. It is a riot that has a conflict of races and color discrimination. In the said ri ots, there is a conflict between the white and black because of issues of r ape and stealing properties.
7 0
3 years ago
Who was the first person to see cells?
Stella [2.4K]
<span>Robert Hooke was the first person to see cells.</span>
6 0
3 years ago
the nontemplate strand of a portion of a gene reads 5'ACTGGTTCA. What will the sequence of the resulting transcript for this por
konstantin123 [22]

Answer:

DNA template sequence:  

5' TGACCAAGT 3'

RNA antisense sequence: 3' UGACCAAGU 5'

>>> RNA sense sequence (transcript) : UGAACCAGU

Explanation:

In the DNA molecule, four types of nitrogenous bases are found: cytosine (C), and guanine (G), adenine (A) and thymine (T). In DNA the bases pair up with each other in the following ways: A pairs with T by two hydrogen bonds, while C pairs with G by three hydrogen bonds. In RNA (i.e., transcript sequence), T is replaced by uracil (U). Moreover, the RNA nucleotide sequence is read in the direction 5' to 3'.

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