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d1i1m1o1n [39]
3 years ago
8

The bottom one says co2

Biology
1 answer:
Vladimir [108]3 years ago
5 0
Hope this helps
6. A
7. C
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Why are mitochondria called the power house of the cell
Sergio039 [100]

Mitochondria are tiny organelles inside cells that are involved in releasing energy from food.This process is known as cellular respiration. It is for this reason that mitochondria are often referred to as the powerhouses of the cell. Cells that need a lot of energy, like muscle cells, can contain thousands of mitochondria.

8 0
3 years ago
A) Describe the first interaction that triggers signaling to begin in a target cell.
sergey [27]

Answer:

Ligand-receptor interaction is the first interaction that triggers cell signalling.

Ligands are the hormones, drugs or neurotransmitters that specifically bind with receptors present in cell surface to initiate cell signalling. Ligand binding to the receptor is reversible. Binding of the ligand to the receptor can activate or inactivate receptor. Activation may lead to cell signalling pathways. Inside cells, there are secondary molecules which on activation starts a cascade of reactions. which in-turn regulate the function of the ligand molecule.

At first, the activated receptor relates with G proteins molecules in the cell.

before the ultimate physiological effect of the ligand on the cell's behavior is produced Therefore, the cellular signaling starts as soon as the first messenger (the ligand) binds to its receptor.

hope this helps

6 0
3 years ago
1. Restriction enzymes are
padilas [110]
<span>1. Restriction enzymes are

A then C

2. Plasmids

can be used to insert DNA into bacteria


3. Name the technique used to increase a quantity of DNA.

PCR


4. What tool does one use to separate DNA fragments?

a Polyacrylamide gel

Hope this answers the question. Have a nice day.

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5 0
2 years ago
Check all locations where a pulse can be taken.
yulyashka [42]

Answer:

carotid  

brachial  

radial  

femoral  

popliteal  

dorsalis pedis

Explanation:

These are all places where your pulse can be taken.

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

3 0
2 years ago
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What are the building blocks of muscle and it provides 4 calories for every gram
Iteru [2.4K]

Answer:

Protein

Explanation:

Protein is made up of amino acids that help to grow, maintain and repair different tissues in the body- including muscle.

5 0
3 years ago
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