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Ad libitum [116K]
2 years ago
12

Plz help science thank you

Biology
1 answer:
katrin [286]2 years ago
5 0
Жила была царевна но туда ей бросил лёд
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It is difficult for blood to clot in wound artery than in wounded vein
Serggg [28]

Explanation:

because the pressure exerted by artery is more than that of vein due to its narrow lumen and thick walls...causing it difficult to clot.

4 0
1 year ago
1. a molecule that serves to make reactions work vesicles 2. tiny sacs in the cell that may contain starch enzyme 3. packets wit
slamgirl [31]
1. Enzyme is the molecule that serves to make reactions work. Enzymes are biochemical catalysts that catalyses chemical reactions in a cell by acting on substrates and convert them to products. Their rate of action increases with increase in substrate concentration, reaching optimum when all active sites of the enzyme are engaged.

2. Plastid are the tiny sacs in the cell that may contain starch. Plastid are major cell organelles found in the cells of plants and algae. Plastids are site for the manufacture and storage of important  chemical compounds used by the cell. They often contain pigments used in photosynthesis, and the types of pigments present can change or determine cells color.

3. Lysosome are packets within the cell that contain digestive enzymes. Lysosomes are one of many organelles found in animal cells. they are tiny like sacs filled with enzymes that enables the cell to process nutrients. They contain digestive enzymes which helps in the digestion of worn out organelles, food particles and engulfed viruses or bacteria.

4. Mitochondrion is a structure within a cell that is responsible for production of energy. Energy in a cell is produced through a process of cellular respiration which involves use of nutrients with oxygen gas to yield energy inform of ATP, water and carbon dioxide. The process takes place in the mitochondrion where oxygen acts as proton acceptor in the electron transport chain coupled by production of energy.

5. An Organelle is a small structure that serves specialized functions. A cell is made up of various organelles that help it perform its functions. Each organelle is specialized to perform as specific function different from other organelles, for example ribosomes is an organelle involved in the manufacture of proteins.

6. Golgi apparatus are group of flattened sacs that package and export materials out of the cell. Golgi apparatus also called golgi complex or golgi body, is a membrane bound organelle in eukaryotic cells that is made up by a series of flattened, stacked pouches called cisternae. They are responsible for transporting, modifying, and packaging proteins and lipids into vesicles.

7. Vesicles are tiny sacs connected to the Endoplasmic reticulum and Golgi apparatus. Vesicles are small structures within a cell, or extracellular, consisting of fluid enclosed by a lipid bi-layer. they form naturally during the process of secretion (exocytosis), uptake (endocytosis) and transport of materials within the cytoplasm.
5 0
3 years ago
Read 2 more answers
Make a stimulus-receptive model for the endocrine system and the nervous system.
gogolik [260]

Answer: I’m not sure how I am supposed to answer this question but I would just draw an endocrine system and nervous

Explanation:

8 0
3 years ago
Dose anyone know what pairs of structures share the function of reabsorbing water into the body?
Fudgin [204]
The pair of structures that share the function of reabsorbing water into the body us the Hypothalamus and Pancreas.
3 0
3 years ago
Positive feedback is most like _____.
sesenic [268]
~ B - Adding wood to a burning fire to increase the heat.

A is kind of like a reaction to negative feedback - it's too hot, so cooling down.
C is like turning the air conditioner off. It's cool enough.

B on the other hand adds something to the whole by reinforcing it. The fire is a metaphor for the writer's self-esteem, ego, good-feelingness, what-have-you.
8 0
3 years ago
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