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Korvikt [17]
2 years ago
13

Describe how plant cells keep themselves rigid. Word Count: of 125

Biology
1 answer:
Sveta_85 [38]2 years ago
4 0

Las paredes externas de una casa o un automóvil brindan una barrera fuerte e inflexible que protege a sus habitantes humanos de un mundo externo rudo e impredecible. Podría esperarse que el límite externo de una célula viva estuviera construido de una barrera igual de fuerte e impenetrable porque también debe proteger su delicado contenido interno ante un ambiente no vivo y a menudo inhospitalario. Sin embargo, las células están separadas del mundo externo por una estructura delgada y frágil llamada membrana plasmática que sólo mide 5 a 10 nm de espesor. Se requerirían casi 5 000 membranas plasmáticas apiladas una sobre otra para igualar el grosor de una sola página de este libro.

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List two main functions of the cell membrane
qaws [65]

Answer: heres the 3 main functions.

Explanation:

membranes have three primary functions 1) they keep toxic substances out of the cell 2) they contain receptors and channels that allow specific molecules, such as ions, nutrients, wastes, and metabolic products, that mediate cellular and extracellular activities to pass between organelles and between the cell and the outside environment and 3) they separate vital but incompatible metabolic processes conducted within organelles.

3 0
3 years ago
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In whole-genome shotgun sequencing, the chromosome is cut into pieces, the pieces are sequenced, and the sequences are aligned b
Lesechka [4]

Answer:

CCAGGCC

CCATCGA

GGCCATC

CAT

AGGCCAT

CATCGAG

Explanation:

Shotgun sequencing is a method used to determine the nucleotide sequence of entire chromosomes/genomes. This sequencing method consists of obtaining random DNA fragments which are subsequently classified by bioinformatic tools that ordering them according to overlapping sequences called contigs. In the whole-genome shotgun (WGS) technique, the entire genome of an organism is sequenced, being the critical factor the depth of sequencing, which refers to the quality of the sequencing reads (e.g., a depth of 20X indicates that the genome is sequenced 20 times by a sequencing machine). For the human genome, WGS became available after the completion of the Human Genome Project (HGP), which enabled the generation of a reference sequence for the whole human genome. The steps of the WGS technique are the following:

1. Preparation of isolated chromosomes

2. The DNA is sheared into small fragments

3. The DNA fragments of about 1 kilobase (1000 base pairs) are incorporated into plasmids which are cloned to render pure samples of each DNA fragment

4. The plasmid clones are sequenced by sequencing machines

5. Bioinformatic tools finally are used to link DNA fragments by their overlapping ends

3 0
3 years ago
What would be the first thing you would do if you are burned by a chemical while performing a lab experiment?
Reika [66]
1) Remove the chemical
2) Remove any contaminated clothes or jewelry
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4) Loosely apply a bandage or gauze
5) Take an OTC pain reliever
6) Consider a Tetanus shot
5 0
3 years ago
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I need help on this please help
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dna, genes, animo, to acids

8 0
3 years ago
What vase in rna pairs with adenine
Svetllana [295]
Uracil pairs with adenine in RNA base
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