ورقة عمل الأحياء لامتحانات القبول في التمريض مع الإجابات

What is an organism's genotype?

1. AThe number of cells in its body
2. BThe environment in which it lives
3. CThe alleles it carries for a trait
4. DThe traits that can be seen or measured

أي وحدة تُستخدم غالبًا للتعبير عن حجم الخلية؟

1. Aالأمتار (m)
2. Bالميكرومترات
3. Cالكيلومترات (km)
4. Dاللترات (L)

A solution has a pH of 3. How is it described?

1. AIsotonic
2. BNeutral
3. CAcidic
4. DBasic

What does the enzyme lipase break down?

1. AStarch into sugars
2. BFats into fatty acids and glycerol
3. CProteins into amino acids and peptides
4. DDNA into nucleotides

What happens in the lytic cycle of a virus?

1. AThe virus divides by binary fission outside the cell
2. BThe virus makes many copies in the host cell, which then bursts
3. CThe host cell makes antibodies against the virus
4. DThe viral DNA joins the host DNA and stays inactive for a long time

By which process does oxygen enter a cell and carbon dioxide leave it?

1. ASimple diffusion through the lipid bilayer
2. BActive transport by membrane pumps
3. CFacilitated diffusion through glucose carriers
4. DEndocytosis in small vesicles

A human body cell has 46 chromosomes in G1. How many chromatids does it have at metaphase of mitosis?

1. A23
2. B92
3. C46
4. D184

Sucrose is broken down into glucose and fructose during digestion. What type of reaction is this?

1. ADehydration synthesis, which uses a water molecule
2. BHydrolysis, which releases a water molecule
3. CHydrolysis, which uses a water molecule
4. DDehydration synthesis, which releases a water molecule